Conversation with Merlin [email protected] · Mon Nov 20 2023

tôi muốn 5 câu hỏi bài tập C cơ bản chi tân sinh viên

Dưới đây là 5 câu hỏi bài tập C cơ bản cho sinh viên:

  1. Viết chương trình nhập hai số nguyên từ bàn phím, sau đó in kết quả tổng, hiệu, tích và thương của hai số này.
  2. Viết chương trình để kiểm tra một số nguyên có phải là số nguyên tố hay không.
  3. Viết chương trình để tính giai thừa của một số nguyên dương.
  4. Viết chương trình để tìm ước chung lớn nhất (UCLN) của hai số nguyên dương.
  5. Viết chương trình để sắp xếp một mảng số nguyên theo thứ tự tăng dần.

Mong rằng những câu hỏi này sẽ giúp bạn rèn luyện kỹ năng lập trình C cơ bản một cách hiệu quả. Chúc bạn thành công trong học tập!

Cho tt c cc bn, trong bi vit ny mnh xin chia s ti cc bn c gi b 1000 bi tp lp trnh ca thy Nguyn Tn Trn Minh Khang. Bn c hy ti file bi v luyn tp. Sau hy tham kho li gii bng cch click vo tng bi, mt link s m ra cha source code l p n ca bi tp tng ng. Chc cc bn hc tp tht tt! Nu bn ang c nhu cu hc lp trnh C t u min ph, hy tham gia kha hc Hc C B o ca mnh nh. NI DUNG BI VIT bi 1000 bi tp lp trnh ca thy KhangLi gii 1000 bi tp ca thy KhangChng 1: Lu thut tonChng 2: Lp trnh vi ngn ng CChng 4: HmChng 5: Mng mt chiuK thut nhp, xut mngK thut t lnh canh, cc bi tp c bnCc bi tp luyn tpBi tp luyn tp t duyCc bi tp tm kim v lit kK thut tnh tngK thut mK thut sp xpK thut thmK thut xaK thut x l mngK thut x l mngconXy dng mngChng 6: Ma trnK thut tnh tonK thut mK thut t c hiuK thut t lnh canhK thut x l ma trnSp xp ma trnXy dng ma trnChng 7: Ma trn vunTnh tonK thut t lnh canhK thut mK thut t c hiuSp xpCc php ton trn ma trnChng 8: Tru tng ha d liun thca thcPhn SHn SS phcim trong mt phng Oxyim trong khng gian Oxyzng trn trong mt phng OxyHnh cu trong khng gian OxyzTam gic trong mt phng OxyNgyChng 10: quy quy tuyn tnh quy nh phn quy h tng quy phi tuynMt s bi ton quy thng dng quy v mng 1 chiuChng 11: Con trCon tr c bnCon tr v mng 1 chiuCon tr nng caoCon tr v mng 2 chiuChng 12: Danh sch lin ktKhai boKhi to danh sch lin ktTo nodeThm 1 node vo u danh schDuyt danh sch lin ktNhp danh sch lin ktChng trnh minh haCc bi tp l thuytCc bi tp khai bo danh schTo NODE cho danh sch lin kt nBi tp string trong CVit li cc hm stringBi tp thao tc tp tinCc v d v tp tinDng tp tin lu v x l d liu Di y l bi 1000 bi tp lp trnh C ca thy Nguyn Tn Trn Minh Khang c tng hp thnh mt file pdf. Cc bn ch cn download n v l s xem c ton b bi ca 1000 bi tp ny. Hnh nh 10 bi tp u tin trong tp 1000 Bi Tp Ca Thy Nguyn Tn Trn Minh Khang [sc_download url=https://github.com/NguyenVanHieuBlog/tai-lieu-lap-trinh/raw/master/cpp/1000%20B%C3%A0i%20t%E1%BA%ADp%20c%E1%BB%A7a%20Th%E1%BA%A7y%20Nguy%E1%BB%85n%20T%E1%BA%A5n%20Tr%E1%BA%A7n%20Minh%20Khang.pdf]Ti 1000 bi tp lp trnh C[/sc_download] Ngun bi: T Gia Lc [sc_box] Gi y bn c th luyn tp cc bi tp lp trnh v bit c code ca bn ng hay sai qua h thng chm code mi ca chng ti. Th ngay no Luyn Code Online [/sc_box] Li gii 1000 bi tp ca thy Khang Di y l li gii 1000 bi tp ca thy Khang theo tng chng. Cc bn c th tham kho trong trng hp cha tm ra hng gii cng nh tham kho cch lm, phng php tip cn bi ton hc c nhiu hn. Chng 1: Lu thut ton Bi 1: Tnh S(n) = 1 + 2 + 3 + + n Bi 2: Tnh S(n) = 1^2 + 2^2 + + n^2 Bi 3: Tnh S(n) = 1 + + 1/3 + + 1/n Bi 4: Tnh S(n) = + + + 1/2n Bi 5: Tnh S(n) = 1 + 1/3 + 1/5 + + 1/(2n + 1) Bi 6: Tnh S(n) = 1/12 + 1/23 ++ 1/n x (n + 1) Bi 7: Tnh S(n) = + 2/3 + + . + n / n + 1 Bi 8: Tnh S(n) = + + 5/6 + + 2n + 1/ 2n + 2 Bi 9: Tnh T(n) = 1 x 2 x 3x N Bi 10: Tnh T(x, n) = x^n Bi 11: Tnh S(n) = 1 + 1.2 + 1.2.3 + + 1.2.3.N Bi 12: Tnh S(n) = x + x^2 + x^3 + + x^n Bi 13: Tnh S(n) = x^2 + x^4 + + x^2n Bi 14: Tnh S(n) = x + x^3 + x^5 + + x^2n + 1 Bi 15: Tnh S(n) = 1 + 1/1 + 2 + 1/ 1 + 2 + 3 + .. + 1/ 1 + 2 + 3 + . + N Bi 16: Tnh S(n) = x + x^2/1 + 2 + x^3/1 + 2 + 3 + + x^n/1 + 2 + 3 + . + N Bi 17: Tnh S(n) = x + x^2/2! + x^3/3! + + x^n/N! Bi 18: Tnh S(n) = 1 + x^2/2! + x^4/4! + + x^2n/(2n)! Bi 19: Tnh S(n) = 1 + x + x^3/3! + x^5/5! + + x^(2n+1)/(2n+1)! Bi 20: Lit k tt c cc c s ca s nguyn dng n Bi 21: Tnh tng tt c cc c s ca s nguyn dng n Bi 22:Tnh tch tt c cc c s ca s nguyn dng n Bi 23: m s lng c s ca s nguyn dng n Bi 24: Lit k tt c cc c s l ca s nguyn dng n Bi 25: Tnh tng tt c cc c s chn ca s nguyn dng n Bi 26: Tnh tch tt c cc c s l ca s nguyn dng n Bi 27: m s lng c s chn ca s nguyn dng n Bi 28: Cho s nguyn dng n. Tnh tng cc c s nh hn chnh n Bi 29: Tm c s l ln nht ca s nguyn dng n. V d n = 100 c l ln nht l 25 Bi 30: Cho s nguyn dng n. Kim tra xem n c phi l s hon thin hay khng Bi 31: Cho s nguyn dng n. Kim tra xem n c phi l s nguyn t hay khng Bi 32: Cho s nguyn dng n. Kim tra xem n c phi l s chnh phng hay khng Bi 33: Tnh S(n) = CanBac

blog.luyencode.net

Code C++ c rt nhiu iu bn cn hc v nn thc hnh chm ch. Nhng bi tp C++ km p n di y s gip bn s dng ngn ng lp trnh ny d dng hn.D code v c php c bn ngn ng lp trnh C v C++ ging nhau. Tuy nhin, l mt ngn ng lp trnh cp trung, C++ c li th trong vic lp trnh cc ng dng cp thp v cp cao hn.im ni bt ca cc chng trnh C++C++ l mt ngn ng n gin. Cc chng trnh c chia thnh nhng n v v cc phn logic. N cng h tr th vin phong ph cng nhiu kiu d liu khc nhau.C++ khng phi nn tng c lp nh cc chng trnh c to trn Linux m c th khng chy trn windows.Vi ngn ng C++, bn c th pht trin cc ng dng quy m ln cng nh lp trnh h thng.N c sn mt th vin thut ton cu trc d liu, bao gm c th vin bn th ba pht trin ng dng tht nhanh.Trong C++, khng c chi ph x l b sung nh thu gom rc, nhp d liu linh ngH tr con tr ngi dng c th trc tip thao tc trn a ch lu tr.Bn cnh cc bi tp Python, Java, Qun Tr Mng cng tng hp cho cc bn mt s bi tp C++ c bn luyn tp thm trong qu trnh hc ngn ng lp trnh C++.Danh mc bi tp C++ ny c chia thnh 9 phn, mi phn c t 3 n 5 bi, vi cp kh tng dn. Ban u bn s "khi ng" vi nhng bi tp C++ ht sc c bn, nh m phng php nhn tay, in s tin, kim tra mt b 3 s xem c phi l cnh ca mt tam gic khng, tnh chu vi, din tch tam gic .Dn dn s l nhng bi kh hn nh to v qun l danh sch sinh vin, ti liu, in hoc thc hin cc cng vic khc theo yu cu ca bi. Thm ch l v c th ca hm lng gic.Danh mc bi tp C++Bi tp C++ s 1Cu 1: M phng php nhn tayCu 2: Nhp s tin, in s t, mnh giCu 3: i s sang s La MCu 4: In cch c sCu 5: Gii phng trnh bc haiBi tp C++ s 2Cu 1: Kim tra 3 s c phi cnh tam gic khng, nu c l loi tam gic no, tnh chu vi, din tchCu 2: Tnh s nm cn gi tit kimCu 3: In s PI tnh c vi sai s cho trcCu 4: Tm v in s hon hoCu 5: Tm v in cc s nguyn t nh hn nBi tp C++ s 3Cu 1: Kim tra s chnh phngCu 2: Gii bt phng trnh bc nhtCu 3: Vit hm quy tm c chung ln nhtCu 4: Tnh giai tha cch ca s nguyn dng nCu 5: Vit hm quy gii bi ton thp H NiBi tp C++ s 4Cu 1: In cc phn t ca mng theo yu cuCu 2: Nhp, sp xp, in mngCu 3: Nhp, in mng, m on theo cc tiu chCu 4: Nhp, in, tnh tch 2 ma trnCu 5: Nhp, in ma trn vung, tnh nh thcBi tp C++ s 5Cu 1: Kim tra tnh i xng ca mt xuCu 2: Thng k s ln xut hin mt k t trong xuCu 3: Chun ha xu k tCu 4: Nhp mng xu k t v sp xp tng dnBi tp C++ s 6Cu 1: Qun l im s th sinh bng mngCu 2: Qun l ti liu, in danh sch theo yu cuCu 3: Qun l thanh ton tin inBi tp C++ s 7Cu 1: To tp s, m s, s ln nht, s nh nhtCu 2: To tp tn sinh vin, sp xp v inCu 3: To tp danh sch h s sinh vin theo yu cuBi tp C++ s 8Cu 1: V l c sao vng ti v tr trung tm mn hnh.Cu 2: V m phng thp pht sng ng-ten.Cu 3: V bu tri sao trn mn hnh.Cu 4: V th hm s y=sinx.Cu 5: V qu bng chuyn ng trong khung ch nht.Bi tp C++ s 9Cu 1: To lp vec-t theo yu cuCu 2: To lp phn s theo yu cuCu 3: To lp hng ha theo yu cuCu 4: Vit hm nhp, xut, sp xp mngBi tp C++ c bn v hm v quyBi tp C++ s 1Cu 1: M phng php nhn tayLp trnh in ra mn hnh m phng php nhn tay 2 s nguyn dng c 3 ch s nhp t bn phm. V d vi 2 s nhp vo l 763 v 589 th phi in ra mn hnh nh sau:Code mu:#include<stdio.h> #include<conio.h> void main () { int a, b; char dv, chuc, tram; clrscr (); printf ("Nhap so bi nhan co 3 chu so a="); scanf ("%d", &a); printf ("Nhap so nhan co 3 chu so b="); scanf ("%d", &b); dv = b % 10; chuc = b % 100 / 10; tram = b / 100; printf ("\nMo phong phep nhan tay\n\n"); printf ("%20d\n", a); printf ("%15c%5d\n", 'x', b); printf ("%20s\n", "-------"); printf ("%20d\n", a * dv); printf ("%19d\n", a * chuc); printf ("%18d\n", a * tram); printf ("%20s\n", "-------"); printf ("%20ld\n", long (a) * b); getch (); } Cu 2: Nhp s tin, in s t, mnh giMt ngi cn rt mt s tin T t ngn hng v mun tng s t t nht. Cho bit c cc loi tin mnh gi 100, 20, 5 v 1. Nhp t bn phm s tin T v in ra s t mi loi mnh gi v tng s t nhn c.Code mu:#include <stdio.h> #include <conio.h> void main () { int t, t100, t20, t5; clrscr (); printf ("Nhap so tien t="); scanf ("%d", &t); t100 = t / 100; t -= 100 * t100; t20 = t / 20; t -= 20 * t20; t5 = t / 5; t -= 5 * t5; printf ("So to cac loai menh gia la :\n"); printf ("Loai 100 : %d to\n", t10

quantrimang.com

Ni dung chnh Bi tp qun l sinh vin trong C/C++ Li gii To cu trc sinh vien nh ngha cc hm 1. Hm printLine(int n) 2. Hm idLonNhat(SV a[], int n) 3. Hm nhp thng tin sinh vin 4. Hm cp nht thng tin sinh vin 5. Hm xa sinh vin theo ID 6. Hm tm kim sinh vin theo tn 7. Hm tnh im trung bnh v xp loi hc lc 8. Hm sp xp danh sch sinh vin theo im trung bnh 9. Hm sp xp danh sch sinh vin theo tn 10. Hm hin th danh sch sinh vin ra mn hnh 11. Hm c danh sch sinh vin t file 12. Hm ghi danh sch sinh vin t file 13. Hm main ca chng trnh qun l sinh vien trong C/C++ Ci t chng trnh qun l sinh vin trong C/C++ Run chng trnh qun l sinh vin trong C/C++ Download chng trnh qun l sinh vin trong C/C++ bi: Vit chng trnh qun l sinh vin trong C/C++. Mi i tng sinh vin c cc thuc tnh sau: id, tn, gii tnh, tui, im ton, im l, im ha, im trung bnh v hc lc. Id l m sinh vin t ng tng. Khi khi to, chng trnh s c file "student.txt" ly ra danh sch sinh vin c lu trc . im trung bnh l gi tr trung bnh ca 3 mn ton, l v ha. Hc lc c tnh nh sau: Gii: nu im trung bnh ln hn hoc bng 8. Kh: nu im trung bnh nh hn 8 v ln hn hoc bng 6.5. Trung Bnh: nu im trung bnh nh hn 6.5 v ln hn hoc bng 5. Yu: nu im trung bnh nh hn 5. Yu cu: to ra mt menu vi cc chc nng sau: 1. Thm sinh vin. 2. Cp nht thng tin sinh vin bi ID. 3. Xa sinh vin bi ID. 4. Tm kim sinh vin theo tn. 5. Sp xp sinh vin theo im trung bnh (GPA). 6. Sp xp sinh vin theo tn. 7. Hin th danh sch sinh vien. 8. Ghi danh sch sinh vin vo file "student.txt" . Li gii Chng ta s s dng struct nh ngha mt cu trc sinh vin, v mt mng struct lu tr danh sch sinh vin. Sau y l cc bc c th ci t chng trnh qun l sinh vin trong C/C++ bng struct. To cu trc sinh vien Chng ta s to mt cu trc sinh vin nh sau, diemTB s c tnh bng trung bnh ca cc mn ton, l v ha. hocluc s c tnh ton da vo diemTB nh yu cu ca bi ton. struct SinhVien { int id; char ten[30]; char gioiTinh[5]; int tuoi; float diemToan; float diemLy; float diemHoa; float diemTB = 0; char hocluc[10] = "-"; }; By gi chng ta c th s dng struct SinhVien vi n gin hn bng SV vi t kha typedef, nh sau: nh ngha cc hm Sau y l danh sch cc hm m chng ta s s dng trong chng trnh qun l sinh vin, cc hm ny s c cung cp thn hm sau : void printLine(int n); int idLonNhat(SV a[], int n); void nhapThongTinSV(SV &sv, int id); void nhapSV(SV a[], int id, int n); void capNhatThongTinSV(SV &sv); void capNhatSV(SV a[], int id, int n); int xoaTheoID(SV a[], int id, int n); void timKiemTheoTen(SV a[], char ten[], int n); void tinhDTB(SV &sv); void xeploai(SV &sv); void sapxepTheoDTB(SV a[], int n); void sapXepTheoTen(SV a[], int n); void showStudent(SV a[], int n); int docFile(SV a[], char fileName[]); void ghiFile(SV a[], int n, char fileName[]); void pressAnyKey(); 1. Hm printLine(int n) Hm ny in ra mt dng c n k t "_". Tham s: n: l s k t "_" s c in ra mn hnh. Thn hm printLine(): void printLine(int n) { cout << endl; for (int i = 0; i < n; i++) { cout << "_"; } cout << endl; } 2. Hm idLonNhat(SV a[], int n) Yu cu ca bi ton l id ca sinh vin t ng tng. Nn chng ta s to hm ny ly ra id ln nht ca danh sch sinh vin a[]. Tham s: a[]: l danh sch sinh vin. n: l s lng sinh vin c trong danh sch. Thn hm idLonNhat(): int idLonNhat (SV a[], int n) { int idMax = 0; if (n > 0) { idMax = a[0].id; for(int i = 0;i < n; i++) { if (a[i].id > idMax) { idMax = a[i].id; } } } return idMax; } 3. Hm nhp thng tin sinh vin Hm ny c s dng thm mi sinh vin vo danh sch sinh vin. Vi hm ny chng ta s tch ra thnh 2 hm sau: void nhapThongTinSV(SV &sv, int id). void nhapSV(SV a[], int id, int n). Tham s: &sv: nhp thng tin sinh vin sv. S dng tham chiu &, tc l thng tin s c thay i c bn trong v bn ngoi hm. a[]: l danh sch sinh vin. id: l id (t ng tng) ca sinh vin. n: l s lng sinh vin c trong danh sch. Thn hm nhapThongTinSV(): void nhapThongTinSV(SV &sv, int id) { cout << "\n Nhap ten: "; fflush(stdin); gets(sv.ten); cout << " Nhap gioi tinh: "; gets(sv.gioiTinh); cout << " Nhap tuoi: "; cin >> sv.tuoi; cout << " Nhap diem Toan: "; cin >> sv.diemToan; cout << " Nhap diem Ly: "; cin

viettuts.vn

tôi muốn 5 câu hỏi bài tập C cơ bản chi tân sinh viên

có sử dụng câu lệnh witch base

Dưới đây là 5 câu hỏi bài tập C cơ bản sử dụng câu lệnh switch cho sinh viên:

  1. Viết chương trình nhập một số nguyên từ bàn phím và in ra chữ số tương ứng (vd: 0-9) sử dụng câu lệnh switch.
  2. Viết chương trình nhập m ký tự từ bàn phím và in ra thông tin về loại ký tự (chữ cái, số, ký hiệu đặc biệt) sử dụng câu lệnh switch.
  3. Viết chương trình nhập một tháng trong năm từ bàn phím và in ra số ngày tương ứng trong tháng đó sử dụng câu lệnh switch.
  4. Viết chương trình nhập một ký tự từ bàn phím và kiểm tra xem đó là nguyên âm hay phụ âm sử dụng câu lệnh switch.
  5. Viết chương trình nhập một số từ 1 đến 7 từ bàn phím và in ra tên của ngày trong tuần tương ứng sử dụng câuệnh switch.

Mong rằng những câu hỏi này sẽ giúp bạn rèn luyện kỹ năng lập trình C cơ bản, đặc biệt là trong việc sử dụng câu lệnh switch. Chúc bạn thành công trong học tập!

Dn nhp bi hc trc, mnh chia s tt c cc kin thc quan trng v CU IU KIN IF & TOAN T IU KIN TRONG C++ (If statements). Hm nay, mnh s gii thiu cho cc bn thm 1 cu trc r nhnh c iu kin trong C++, c th l Cu iu kin Switch trong C++ (Switch statements). Ni dung c hiu bi ny tt nht cc bn nn c kin thc c bn v cc phn: CU IU KIN IF & TOAN T IU KIN TRONG C++ (If statements). Trong bi ta s cng tm hiu cc vn : Cu iu kin Switch (Switch statements) Khai bo v khi to bin bn trong cu iu kin switch (Variable declaration and initialization inside case statements) Cu iu kin Switch (Switch statements) Bn di l chng trnh s dng chui cc cu iu kin If (Chaining if statements) kim tra gi tr ca mt bin, kh di v kh c: #include <iostream> using namespace std; const int SUNDAY = 1; const int MONDAY = 2; const int TUESDAY = 3; const int WEDNESDAY = 4; const int THURSDAY = 5; const int FRIDAY = 6; const int SATURDAY = 7; int main() { int dayOfWeek(TUESDAY); if (dayOfWeek == SUNDAY) cout << "Sunday" << endl; else if (dayOfWeek == MONDAY) cout << "Monday" << endl; else if (dayOfWeek == TUESDAY) cout << "Tuesday" << endl; else if (dayOfWeek == WEDNESDAY) cout << "Wednesday" << endl; else if (dayOfWeek == THURSDAY) cout << "Thursday" << endl; else if (dayOfWeek == FRIDAY) cout << "Friday" << endl; else if (dayOfWeek == SATURDAY) cout << "Saturday" << endl; else cout << "Unknown" << endl; return 0; } Outputs: Cu iu kin if/else trong chng trnh trn c th vit li di dng cu iu kin switch: #include <iostream> using namespace std; const int SUNDAY = 1; const int MONDAY = 2; const int TUESDAY = 3; const int WEDNESDAY = 4; const int THURSDAY = 5; const int FRIDAY = 6; const int SATURDAY = 7; int main() { int dayOfWeek(TUESDAY); switch (dayOfWeek) { case SUNDAY: cout << "Sunday" << endl; break; case MONDAY: cout << "Monday" << endl; break; case TUESDAY: cout << "Tuesday" << endl; break; case WEDNESDAY: cout << "Wednesday" << endl; break; case THURSDAY: cout << "Thursday" << endl; break; case FRIDAY: cout << "Friday" << endl; break; case SATURDAY: cout << "Saturday" << endl; break; default: cout << "Unknown" << endl; break; } return 0; } Kt qu cho ra t 2 cch vit trn l nh nhau. By gi, chng ta s cng tm hiu chi tit hn v cu iu kin switch. Tng quan Switch statements so snh mt bin (hoc biu thc) kiu s nguyn vi mt danh sch gi tr cc s nguyn, cc hng k t hoc biu thc hng. Mi gi tr trong danh sch chnh l mt case label (nhn trng hp) trong khi codes ca switch. Trong khi code switch cn c th c mt default label (nhn mc nh) c th c hoc khng. Trong mi label cn cha cc khi code tng ng. Cu trc cu iu kin switch switch (expression) { case constant_1: { Statements; break; } case constant_2: { Statements; break; } // ... case constant_n: { Statements; break; } default: { Statements; } } Nguyn tc trong cu iu kin switch Expression l mt bin (hoc biu thc) c gi tr kiu s nguyn (char, short, int, long, int32_t, enum, ...). Case labels (nhn trng hp) s dng t kha case, i sau n l mt hng s (s nguyn, cc hng k t hoc biu thc hng). S lng cc case labels l khng gii hn, v khng c trng hp trng nhau gia cc case. V d: switch (dayOfWeek) { case 1: case 1: // Khng hp l, v case 1 tn ti case SUNDAY: // Khng hp l, v SUNDAY tng ng vi 1 }; Default label (nhn mc nh) s dng t kha default. Nu khng c case label no tng ng vi gi tr ca expression ca switch, default label s c thc thi. Default label c th khng c hoc ch c 1. T kha break c th s dng hoc khng. Nu khng c s dng th chng trnh s khng kt thc cu trc switchcase khi thc hin ht khi code ca case label c gi tr bng vi biu thc nguyn. Thay vo , n s thc hin tip cc khi codes tip theo cho n khi gp t kho break hoc du } cui cng ca cu trc switchcase. V d: #include <iostream> using namespace std; int main() { int month, day; cout << "Month: "; cin >> month; switch (month) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: day = 30; break; case 4: case 6: case 9: case 11: day = 31; break; default: day = 28; } cout << day << endl; return 0; } Outputs: Khai bo v khi to bin bn trong case statement Bn c t

howkteam.vn

gip cc bn lm quen hn vi cu lnh r nhnh (if else, switch case) trong ngn ng lp trnh C++, bi vit di y s chia s nhng bi tp v cu lnh r nhnh trong C++ siu hay. Nhng bi tp ny c Isinhvien tng hp v chn lc t nhiu ngun khc nhau, t c bn n nng cao, m bo s gip cc bn rt nhiu trong vic thnh tho cu lnh r nhnh ny y! Trc khi bc vo lm nhng bi tp ny, nu bn cha bit g hay con lan man hy tham kho ngay bi vit v cu lnh if else v cu trc switch case ca Isinhvien nh! 1. Kim tra mt s nhp vo l m hay dng bi: Nhp mt s nguyn n khc 0 t bn phm, kim tra xem s n va nhp vo l s dng hay m v in ra mn hnh. p n tham kho: #include<iostream> using namespace std; int main() { int n; cout << "Nhap n:"; cin >> n; if(n>0) cout << n << " la so nguyen duong!"; if(n<0) cout << n << " la so nguyen am"; } Kt qu thc thi: Nhap n:100 100 la so nguyen duong! Nhap n:-5 -5 la so nguyen am 2. Xp loi mt hc sinh da vo im trung bnh bi: Nhp im trung bnh (dtb) ca mt hc sinh t bn phm, sau in ra mn hnh xp loi ca hc sinh ny. 8 \leqslant dtb \leqslant 10: Xp loi Gii6.5 \leqslant dtb < 8: Xp loi Kh5 \leqslant dtb < 6.5: Xp loi Trung bnh0 \leqslant dtb < 5: Xp loi Yu p n: #include<iostream> #include<math.h> using namespace std; int main() { double dtb; cout << "Nhap diem trung binh: "; cin >> dtb; if(dtb>=8 && dtb<=10) cout << "Xep loai Gioi"; else if(dtb<8 && dtb >=6.5) cout <<"Xep loai Kha"; else if(dtb<6.5 && dtb>=5) cout << "Xep loai Trung binh"; else cout << "Xep loai Yeu"; } Kt qu thc thi: Nhap diem trung binh: 7 Xep loai Kha 3. Gii phng trnh bc 2 bi: Nhp vo ln lt 3 h s a. b. c ca phng trnh bc 2 (ax^2+bx+c). Gii phng trnh bc 2 trn v in kt qu ra mn hnh. p n: #include <iostream> #include <math.h> using namespace std; int main() { float a,b,c,d,x1,x2; cout << "Nhap ba he so a, b, c tuong ung la: " << endl; cin>>a>>b>>c; if(!a){ if(!b) cout << "Ca a va b khong the cung bang 0 trong phuong trinh ax^2 + bx + c = 0" << "\n"; else { d=-c/b; cout << "Phuong trinh co nghiem duy nhat : " << d << endl; } } else { d=b*b-4*a*c; if(d>0) { x1=(-b+sqrt(d))/(2*a); x2=(-b-sqrt(d))/(2*a); cout << "Nghiem thu nhat x1 = " << x1 << endl; cout << "Nghiem thu hai x2 = " << x2 << endl; } else if (d==0) cout << "Phuong trinh co nghiem duy nhat: " << -b/(2*a); else cout << "Phuong trinh vo nghiem."; } return 0; } Kt qu thc thi: Nhap ba he so a, b, c tuong ung la:27-9Nghiem thu nhat x1 = 1Nghiem thu hai x2 = -4.5 Nhap ba he so a, b, c tuong ung la: 1 2 3 Phuong trinh vo nghiem. 4. Bi ton kinh in g ch bi: Va g va ch,B li cho trn,Ba mi su con,Mt trm chn chn Bi ton trn c s g l 22, s ch l 14. T , hy vit chng trnh nhp vo tng s con v tng s chnn . Hy in ra mn hnh s g v ch, nu s liu khng hp l, in khng tha mn. p n: #include <iostream> #include <math.h> using namespace std; int main() { int socon, sochan; cout << "Nhap so con: "; cin >> socon; cout << "Nhap so chan: "; cin >> sochan; if((sochan-2*socon) %2 !=0) cout << "So lieu khong hop le"; else { cout << "So cho la: " << (sochan-2*socon)/2 << endl; cout << "So ga la: " << socon - (sochan-2*socon)/2 ; } return 0; } Kt qu thc thi: Nhap so con: 36 Nhap so chan: 100 So cho la: 14 So ga la: 22 5. i tm ngy mai v ngy hm qua bi: Ln lt nhp vo ngy thng nm, in ra ngy hm sau v ngy hm qua ca ngy va nhp. p n: #include<iostream> #include<math.h> using namespace std; int main() { int day, month, year, tg, day1, month1, year1; cout<<"Nhap vao ngay: "; cin>>day; day1=day; cout<<"Nhap vao thang: "; cin>>month; month1=month; cout<<"Nhap vao nam: "; cin>>year; year1=year; switch(month) { case 4: case 6: case 9: case 11: tg = 30; break; case 2: tg = 28 + ((year%4==0 && year%100) || (year%400==0)); break; default: tg = 31; } day = (day%tg)+1; if(day==1) { month = (month%12)+1; } cout<<"Ngay mai: "<<day<<"/"<<month<<"/"<<year+(month==1 && day==1); if(day1==1) { switch(month1-1) { case 4: case 6: case 9: case 11: day1=30; break; case 2: day1=28+((year1%4==0 && year1%100) || (year1%400==0)); break; default: day1=31; } if(month1==1) { month1=12; year1--; } else { month1--; } } else { day1--; }

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Trong bi ny chng ta s tm hiu lnh switch case trong C++, y l cng l mt lnh r nhnh rt hu ch. Cui bi hc mnh c tng hp mt s bi tp switch case gip bn thc hnh na nh.Bi vit ny c ng ti freetuts.net, khng c copy di mi hnh thc. bi hc trc chng ta cng tm hiu v cu trc iu khin if trong C++ l g ri. Trong bi hc hm nay chng ta s cng tm hiu mt cu trc iu khin khc na l switch case. Vy cu trc iu khin switch case l g? Chng ta cng tm hiu trong ni dung tip theo nh. 1. Cu trc lnh switch case trong C++ Lnh switch case cng tng t nh lnh if else if m chng ta c hc bi trc. Ngha l n c nhiu iu kin, chng trnh chng ta duyt tng iu khin t trn xung di, nu tha iu kin no th on code bn trong iu kin s c thc thi.Bi vit ny c ng ti [free tuts .net] C php switch case C php ca cu trc iu khin switch case trong C++ nh sau: C php switch(expression) { case constant-expression: statement(s); break; //optional case constant-expression: statement(s); break; //optional default : //Optional statement(s); } Trong : expression: L gi tr c truyn vo so snh vi cc iu kin constant-expression. constant-expression: L iu kin so snh vi gi tr ca expression truyn vo. break: L lnh thot khi cu trc iu khin switch case. default: y l gi tr mc nh, khi khng c gi tr ca expression no tha iu kin constant-expression th on code bn trong default s c thc thi. V d: In ra s chn v s l. #include <iostream> using namespace std; int main() { int number = 3; switch (number % 2){ case 0: cout << "So chan"; break; case 1: cout << "So le"; break; } return 1; } Trong v d ny th bn thy lnh case 1 s c chy. Lu hot ng switch case Hy xem lu hot ng ca cu trc iu khin switch case i y: 2. Lu khi s dng switch case C++ Mt s im m cc bn cn lu khi s dng lnh switch case trong C++ nh sau: Th nht. constant-expression phi cng kiu d liu vi expression v phi l mt gi tr thc nh 1, 2, 3, "Good", "Normal" ... Th hai. Lnh break bn trong switch case dng thot khi cu trc iu khin switch case. Mt cu trc iu khin switch case khng c break s xt tng iu kin mt, v d nh nu iu kin 1 tha th s thc thi on code bn trong iu kin 1, tip tc xt iu kin 2 nu tha s thc thi on code bn trong iu kin 2 v c tip tc cho n khi kt thc iu khin switch case. Nu switch case c s dng break, th khi gp break s thot khi cu trc iu khin switch case v s khng xt tip iu kin tip theo. Th ba. Lnh default trong cu trc iu khin switch case l ty chn, tuy nhin chng ta nn s dng lnh default bn trong switch case v t n cui ca switch, khi khng c iu kin no tha th on code bn trong default s c thc thi, v chng ta cng khng cn s dng lnh break bn trong default. Th t. Khng c s dng 2 case c gi tr constant-expression trng nhau. Th nm. Cho php switch case lng nhau, tuy nhin khng khuyn khch cc bn s dng switch case trng nhau v n lm cho chng trnh chng ta phc tp v kh c hn thi. Th su. Nu c nhiu iu kin so snh th khuyn khch cc bn s dng cu trc iu khin switch case hn l if else if v n lm cho chng trnh ca chng ta r rng v d c hn. 3. V d lnh switch case trong C++ Chng ta cng xt mt v d phn loi sinh vin da vo kt qu im hc tp. Nu im A th phn loi l sinh vin xut xc, im B l sinh vin loi gii, im C l sinh vin loi kh, im D l sinh vin loi trung bnh, im F l sinh vin loi yu. c vit bng cu trc iu khin switch case nh sau: V d #include <iostream> using namespace std; int main () { char diem = 'A'; switch(diem) { case 'A': cout << "Xuat xac" << endl; break; case 'B': cout << "Gioi" << endl; break; case 'C': cout << "Kha" << endl; break; case 'D': cout << "Trung Binh" << endl; break; case 'F': cout << "Yeu" << endl; break; default: cout << "Diem khong hop le" << endl; } cout << "Diem cua ban la: " << diem << endl; return 0; } V kt qu sau khi thc thi on code trn: Ngoi ra, bn c th lm thm nhng bi tp pha di nng cao k nng s dng lnh ny nh. 4. Kt lun Nh vy l chng ta cng tm hiu cu trc iu khin switch case trong C++ l g ri, v bn cng bit c php v cch s dng lnh switch case trong C++. Bi ny mnh xin dng ti y, trong bi tip theo chng ta s cng tm hiu v vng lp for trong C++. Cc bn nh theo di tip nh. ng qun lm nhng bi tp thc hnh di y nm vng hn nh. 5

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Viết chương trình nhập một số từ 1 đến 7 từ bàn phím và in ra tên của ngày trong tuần tương ứng sử dụng câu lệnh switch.

Dưới đây là một ví dụ về chương trình C nhập một số từ 1 đến 7 từ bàn phím và in ra tên của ngày trong tuần tương ứng sử dụng câu lệnh switch:

#include <stdio.h> int main() { int soNgay; printf("Nhập một số từ 1 đến 7: "); scanf("%d", &soNgay); switch (soNgay) { case 1: printf("Hôm nay là thứ Hai."); break; case 2: printf("Hôm nay là thứ Ba."); break; case 3: printf("Hôm nay là thứ Tư."); break; case 4: printf("Hôm nay là thứ Năm."); break; case 5: printf("Hôm nay là thứ Sáu."); break; case 6: printf("Hôm nay là thứ Bảy."); break; case 7: printf("Hôm nay là Chủ Nhật."); break; default: printf("Số bạn nhập không hợp lệ."); } return 0; }

Chương trình này sẽ nhận số từ 1 đến 7 từ người dùng và in ra tên của ngày trong tuần tương ứng. Nếu người dùng nhập số khác, chương trình sẽ in ra thông báo "Số bạn nhập không hợp lệ."

Mong rằng ví dụ trên sẽ giúp bạn hiểu cách sử dụng câu lệnh switch trong chương trình C. Chúc bạn thành công trong việc học tập và lập trình!

C program to print the day of week name using switch case or C Program to Print Day of Week Name Using Switch Case or C Program to Print Days of Week in Words using Switch Case Statement or Program in C to Display day of the week using switch case or C program to input a number of week's day(1-7) and translate to its equivalent name of the day of the week or Simple C Program for Switch case to Find weekdays name or print Days of Week using switch-case or program to print days of the week using a switch. In this problem, we have to find the day, let's take input as an example suppose the user enters 5(User input should be between 1 to 7 ) then our program will print the message on the screen " Today Is Friday ", and for other input, it will print the appropriate message on the screen. If the user thinks he is smart and he is trying to enter some other than values 1 to 7 then the program will print the message " Don't be Smart Wrong Choice Try Again!!!". the program will work only if values are 1 to 7. C Program to Print Day of Week Name Using Switch Case #include <stdio.h> main() { /*c program to print days of week using switch */ int choice; printf("Monday Will be First Days and So On\n\n"); printf("Enter Any Number Between (1 to 7):"); scanf("%d", &choice); printf("\n"); switch (choice) { case 1: printf("Today is Monday"); break; case 2: printf("Today is Tuesday"); break; case 3: printf("Today is Wednesday"); break; case 4: printf("Today is Thursday"); break; case 5: printf("Today is Friday"); break; case 6: printf("Today is Saturday"); break; case 7: printf("Today is Sunday"); break; default: printf("Don't Be Smart....Wrong Choice Try Again!!!"); } getch(); } The output ofC Program to Print Day of Week Name SimilarDay of Week Name Using Switch CaseC Program To Find Area And Circumference Of CircleC Program To Print ASCII Value Of CharacterC Program to Find Area of Triangle Given Base And HeightC Program To Find Greatest Among Three NumbersC Program For Checking You Are Eligible For Voting Or Not

programmingwithbasics.com

Write a C program to input week number(1-7) and print day of week name using switch case. C program to find week day name using switch case. How to find day name of week using switch case in C programming. Example InputInput week number(1-7): 2OutputTuesdayRequired knowledgeBasic C programming, Switch case statementStep by step descriptive logic to print day name of week.Input day number from user. Store it in some variable say week.Switch the value of week i.e. use switch(week) and match with cases.There can be 7 possible values(choices) of week i.e. 1 to 7. Therefore write 7 case inside switch. In addition, add default case as an else block.For case 1: print MONDAY, for case 2: print TUESDAY and so on. Print SUNDAY for case 7:.If any case does not matches then, for default: case print Invalid week number.You can also print day of week name using if...else statement.Learn Program to find day of week name using ifelse.Program to print day of week name using switch...case/** * C program to print day of week using switch case */ #include <stdio.h> int main() { int week; /* Input week number from user */ printf("Enter week number(1-7): "); scanf("%d", &week); switch(week) { case 1: printf("Monday"); break; case 2: printf("Tuesday"); break; case 3: printf("Wednesday"); break; case 4: printf("Thursday"); break; case 5: printf("Friday"); break; case 6: printf("Saturday"); break; case 7: printf("Sunday"); break; default: printf("Invalid input! Please enter week number between 1-7."); } return 0; }In the above program I have assumed Monday as the first day of week.Enter week number(1-7): 1 MondayHappy coding

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3 thg 6, 2015 Write a C program to input week number(1-7) and print day of week name using switch case. C program to find week day name using switch case.C program to print Day of Week Name using switch case. #include<stdio.h> int main() { int week; printf("Enter week Number(1-7): "); scanf("%d",&week); switch(...GTU PPS Practical - 14 Write a C program to read no 1 to 7 and print relatively day Sunday to Saturday. #include int main() { int no; printf("n Enter Day...... statement 7:11 C practical for print day name of week using switch statement. ... C program to print day of week by taking numbers from 1 to 7...YouTube Sandeep Kumar Gour 19 thg 12, 20223khonh khc quan trngtrong video nay1 thg 3, 2023 In this problem, we have to find the day, let's take input as an example suppose the user enters 5(User input should be between 1 to 7 ) then...Write C program to print day of week name using switch case.Share your videos with friends, family, and the world.YouTube ms coder 26 thg 9, 2022Simple C Program for Switch case to Find weekdays name with weekday number.In this article we have learn about how to find c++ program to print day of week name using switch case. Read this article to know more.Simple C Program to print weekdays using switch statement with weekday number. In this C program you input any number between 1 to 7 and print name of days...

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Viết chương trình nhập một ký tự từ bàn phím và kiểm tra xem đó là nguyên âm hay phụ âm sử dụng câu lệnh switch.

Dưới đây là một ví dụ về chương trình trong ngôn ngữ C để kiểm tra xem ký tự nhập từ bàn phím là nguyên âm hay phụ âm sử dụng câu lệnh switch:

#include <stdio.h> int main() { char kyTu; printf("Nhập một ký tự từ bàn phím: "); scanf(" %c", &kyTu); // Ký tự được nhập nhập từ bàn phím switch (kyTu) { case 'a': case 'A': case 'e': case 'E': case 'i': case 'I': case 'o': case 'O': case 'u': case 'U': printf("%c là một nguyên âm.\n", kyTu); break; default: printf("%c là một phụ âm.\n", kyTu); } return 0; }

Chương trình trên sẽ nhận một ký tự từ người dùng vàử dụng câu lệnh switch để kiểm tra xem ký tự đó là nguyên âm hay phụ âm. Nếu ký tự là một trong các nguyên âm 'a', 'e', 'i', 'o', 'u' (hoặc các chữ viết hoa tương ứng), chương trình sẽ in ra thông báo cho biết đó là một nguyên âm. Sinh viên có thể tham khảo ví dụ trên để rèn luyện kỹ năng lập trình C và sử dụng câu lệnh switch.

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Home C solved programs C switch case programs This program will read a character from user and check whether it is VOWEL or CONSONANT if entered character was an alphabet using switch case statement in c programming language. Check VOWEL or CONSONANT program using switch /*C program to check whether a character is VOWEL or CONSONANT using switch.*/ #include <stdio.h> int main() { char ch; printf("Enter a character: "); scanf("%c",&ch); //condition to check character is alphabet or not if((ch>='A' && ch<='Z') || (ch>='a' && ch<='z')) { //check for VOWEL or CONSONANT switch(ch) { case 'A': case 'E': case 'I': case 'O': case 'U': case 'a': case 'e': case 'i': case 'o': case 'u': printf("%c is a VOWEL.\n",ch); break; default: printf("%c is a CONSONANT.\n",ch); } } else { printf("%c is not an alphabet.\n",ch); } return 0; } Output First Run: Enter a character: E E is a VOWEL. Second Run: Enter a character: X X is a CONSONANT. Third Run: Enter a character: + + is not an alphabet. C Switch Case Programs Other C language basic programs C program to print "Hello World!" / First C program. This is our first program in C language; this program will print Hello World on the screen, it is implemented using simple method as well as using c language user defined function. Program to find sum and average of two numbers. In this program, we will read two integer numbers and find their SUM and Average and then both results will be printed on the screen. C program to find cube of an integer number using two different methods. In this C program, we are going to find cube of an integer number. Here, we will implement the program by using two methods 1) without using pow() function and 2) using pow() function. C program to find quotient and remainder. In this program, we will read divisor and dividend and then find the quotient and remainder, results will be printed on the screen. Program to calculate simple interest. In this program we will read principle, amount and rate and then calculate simple interest of borrowed principle based on give number of years and rate. Program to check whether number is EVEN or ODD. In this C program, we will read an integer number and program will check whether given integer number is EVEN or ODD. Program to find largest number among three numbers. In this C program, we will read three integer number from user and print the largest number among them. C program to check whether a person is eligible for voting or not? In this program, we are going to learn how to check that, a person is eligible for voting or not, when age is given or input through the user? C program to read marks and print percentage and division. In this C program, we are going to read marks in 3 subjects, we will find the total, percentage and print the division based on the percentage. Program to find gross salary of an employee. In this program, we will read Basic Salary of an employee and calculate HRA, DA, and Provident Fund, based on these parameters we will calculate the gross salary of the employee and print it on the screen. C program to convert temperature from Fahrenheit to Celsius and vice versa. This C program is to convert temperature from Fahrenheit to Celsius and vice versa, program will ask the choice for conversion from the user and find the converted temperature based on given input. C program to calculate X^N (X to the power of N) using pow function. This C program will read two integer number as X and Y and them calculate the X^Y (X to the power Y) and print the result on Screen. C program to find the difference of two numbers. This C program cannot be used to find the subtraction, in this program we are going to find the differences of two integer numbers. Here, we will check which largest number is and to get the difference, smallest number will be subtracted from largest number. C program to print size of variables using sizeof() operator. sizeof() is an operator in C language, which is used to print the occupied size o

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Problem Statement Here, we have a problem statement where we need to write a script or program in C++, C, and Python that checks whether a user-entered character or alphabet is a vowel. For example Input: a Output It is a Vowel Switch case is a programming syntax that provides an alternative elegant way to represent conditional base statements in programming languages. Mostly all the popular programming languages support switch-case statements. Let us now implement the switch case statement to check whether a letter is a vowel or not in different programming languages. #include <stdio.h> int main() { char chr; //input chracter printf("Enter the Alphabet: "); scanf("%c", &chr); switch(chr) { case 'a': case 'A': case 'e': case 'E': case 'i': case 'I': case 'o': case 'O': case 'u': case 'U': printf("----------------It is a Vowel-------------"); break; default: printf("++++++++++++++It is not a Vowel+++++++++++"); } return 0; } Output Enter the Alphabet: B ++++++++++++++It is not a Vowel+++++++++++ C++ Program to Check Vowel or Consonant Using Switch Case #include<iostream> using namespace std; int main() { char chr; cout<<"Enter an Alphabet: "; cin>>chr; switch(chr) { case 'a': case 'A': case 'e': case 'E': case 'i': case 'I': case 'o': case 'O': case 'u': case 'U': cout<<"----------------It is a Vowel-------------"; break; default: cout<<"++++++++++++++It is not a Vowel+++++++++++"; } return 0; } Output: Enter an Alphabet: A ----------------It is a Vowel------------ Python Program to Check Vowel or Consonant Using Switch Case Unfortunately, Python 3.9 and older versions do not support the switch-case statement. So, instead of the switch case, we can use Python if..else statements. Without Switch Case # input alphabet char = input("Enter an Alphabet: ") # check for the VOWEL if char in 'aeiouAEIOU': print("----------------It is a Vowel-------------") else: print("++++++++++++++It is not a Vowel+++++++++++") Output Enter an Alphabet: I ----------------It is a Vowel------------- With Switch Case Python 3.10 introduced the feature of a switch case called structural pattern matching . Let us use it to implement the same program. char = input("Enter an Alphabet: ") def is_vowel(char): vowels = ['A', 'a', 'E', 'e', 'I', 'i', 'O', 'o', 'U', 'u'] if char in vowels: return "----------------It is a Vowel-------------" else: return "++++++++++++++It is not a Vowel+++++++++++" result = is_vowel(char) print(result) Output Enter an Alphabet: A ----------------It is a Vowel------------- Java Program to Check Vowel or Consonant Using Switch Case import java.util.*; class Main { public static void main(String[] args) { char chr; Scanner sc = new Scanner(System.in); System.out.print("Enter an Alphabet: "); chr = sc.next().charAt(0); switch(chr) { case 'a': case 'A': case 'e': case 'E': case 'i': case 'I': case 'o': case 'O': case 'u': case 'U': System.out.println("----------------It is a Vowel-------------"); break; default: System.out.println("++++++++++++++It is not a Vowel+++++++++++"); } } } Output Enter an Alphabet: r ++++++++++++++It is not a Vowel+++++++++++ Wrapping Up! Writing a programto check if the user-entered character is an alphabet or not is a trivial task. In the above tutorial, we have demonstrated how you can do it using C and C++ switch-case statements to solve the problem. This program is a good example to learn about the switch statement. People are also reading: WAP to print the truth table for XY+Z WAP to calculate the sum of two numbers Python Program to Find LCM WAP to print the 1 to 10 Multiples of a Number Python Program to Find Armstrong Number in an Interval Python Program to Print all Prime Numbers in an Interval WAP to find the largest number amongst the numbers entered by the user Python Program to Display Calendar

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C program to check Vowel or consonant using switch case C program to check Vowel or consonant using switch case In this article, we will discuss the concept of the C program to Check Vowel or consonant using switch case statements In this post, we are going to learn how to check the vowels and consonants using switch statements in C programming language Check vowel and consonants C program to check Vowel or consonant using switch case with the break The program allows to enter an Alphabet and it checks and displays whether the given alphabet is vowel or consonant with the break statements Program 1 #include <stdio.h> #include <stdlib.h> int main() { char ch; printf("Enter any Alphabet\n"); //input alphabet from user scanf("%c",&ch);//store the Entered Alphabet in ch switch(ch){ //check lower case vowel letters case 'a': printf("%c is a vowel",ch); break; case 'e': printf("%c is a vowel",ch); break; case 'i': printf("%c is a vowel",ch); break; case 'o': printf("%c is a vowel",ch); break; case 'u': printf("%c is a vowel",ch); break; //check upper case vowel letters case 'A': printf("%c is a vowel",ch); break; case 'E': printf("%c is a vowel",ch); break; case 'I': printf("%c is a vowel",ch); break; case 'O': printf("%c is a vowel",ch); break; case 'U': printf("%c is a vowel",ch); break; default: printf("%c is a consonant",ch); break; } getch(); return 0; } When the above code is executed, it produces the following result case 1 Enter any Alphabet a a is a vowel case 2 Enter any Alphabet E E is a vowel case 3 Enter any Alphabet M M is a consonant case 4 Enter any Alphabet y y is a consonant Approach Define a character variable ch The program is asked the user to enter an Alphabets to check whether vowel or consonant Entered character is stored in the ch variable Define cases for the character ch with vowel character both capital and small Next, the program checks every case using the given character. Finally, it displays whether the given character is vowel or consonant C program to check Vowel or consonant using switch case without the break The program allows to enter an Alphabet and it checks and displays whether the given alphabet vowel or consonant without the break statements Program 2 #include <stdio.h> #include <stdlib.h> int main() { char ch; printf("Enter any Alpabet\n"); //input alphabet from user scanf("%c",&ch);//store the Entered Alphabet in ch switch(ch){ //check lower case vowel letters case 'a': case 'e': case 'i': case 'o': case 'u': //check upper case vowel letters case 'A': case 'E': case 'I': case 'O': case 'U': printf("%c is a vowel",ch); break; default: printf("%c is a consonant",ch); break; } getch(); return 0; } When the above code is executed, it produces the following result case 1 Enter any Alphabet e e is a vowel case 2 Enter any Alphabet U U is a vowel case 3 Enter any Alphabet G G is a consonant case 4 Enter any Alphabet r r is a consonant Approach Define a character variable ch to check the entered character The program is asked the user to enter an Alphabets to check whether vowel or consonant Entered character is stored in the ch variable Define cases for the character ch with vowel character both capital and small Next, the program checks every case using the given character. Finally, it displays whether the given character is vowel or consonant Suggested for you Data type in C language Variable in C language The operator in C language Switch case statements in C language Similar post Java program to check Vowel or consonant using switch case statements C++ program to Check Vowel or consonant using switch case statements Related posts:

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Viết chương trình nhập một số nguyên từ bàn phím và in ra số tương ứng (vd: 0-9) bằng cách sử dụng switch lệnh.

Dưới đây là một ví dụ về sử dụng lệnh switch trong ngôn ngữ lập trình C để in ra số tương ứng cho một số nguyên nhập từ bàn phím (từ 0 đến 9):

#include <stdio.h> int main() { int number; printf("Nhập một số từ 0 đến 9: "); scanf("%d", &number); switch (number) { case 0: printf("Số không"); break; case 1: printf("Số một"); break; case 2: printf("Số hai"); break; case 3: printf("Số ba"); break; case 4: printf("Số bốn"); break; case 5: printf("Số năm"); break; case 6: printf("Số sáu"); break; case 7: printf("Số bảy"); break; case 8: printf("Số tám"); break; case 9: printf("Số chín"); break; default: printf("Số bạn nhập không nằm trong khoảng từ 0 đến 9.\n"); } return 0; }

Chương trình này sẽ nhận một số từ 0 đến 9 từ người dùng và in ra tên của số tương ứng. Nếu người dùng nhập số nào đó không nằm trong khoảng từ 0 đến 9, nó sẽ in ra thông báo "Số bạn nhập không nằm trong khoảng từ 0 đến 9.".

Chúc bạn thành công trong việc học lập trình C!

OverviewDecision control Statements in C language are used to decide the order of execution/flow of control in a program by making a decision based on a condition. For e.g. if, else if etc.Switch statement is one of the decision control statements of C language, which is primarily used in a scenario where the user has to make a decision between multiple alternatives. Syntax of Switch Statement How does C switch statement work First, the <Expression> inside the switch clause is evaluated to an integral constant. Its result is then compared against the case value inside each case statement. If a match is found, all the statements following that matching case label are executed until a break or end of the switch is encountered. This is a critical statement. Also, please note that for any statement to execute inside a switch, it must be under any one case or under default. Consider the example: Print English words, given a digit between 0-9. Below is how the implementation in Switch looksOutput Explanation: The a variable value is 9, this is compared against the case values, and a match is found. All the statements following case 9 are executed until a break statement or end of switch are encountered. Since there are no break statements(break is optional), all the statements following case 9 are executed. (This is a weird output, if we gave 9 as input, we only want to print I am Nine as output, so we have to write break immediately after printf(I am Nine) to stop the flow)For instance, If the a value is 5 instead of 9 in the above switch block. The output of the switch would be: I am Five. Thats it. This is because there is a break statement following case 5. Which interrupted the flow and control came out of the switch block.So, as seen in the above example, the flow of control in a switch is determined by the presence of break inside the case: If a break is present after the matching case statements are executed, control will come out of the switch If break is not present after the matching case statements are executed, it will continue to execute all the statements in the below cases including default, till the end of switch statement. If no match is found between in switch and s in case, then control goes to default block if it exists( default is optional ), If the default block is not written in the switch then control comes out of switch and no case block is executed. Flowchart of Switch Case in C Rules of C Switch StatementBelow are the points to keep in mind when using switch statement. The <Expression> inside the switch clause must evaluate to a single integral value. This means the expression can only be an integer expression or character expression (Because a char is nothing but an ASCII value) Valid Expressions: Constant expressions: 2 + 3, 9 * 16 % 2, 10 / 2 + 5, a , a + 1 etc. All these expressions evaluate to Integer constants, so they are valid.Variable expressions (Assume int a,b; and Char c): a, a b, c * a 4,c + 1, etc. int and char are considered integral and valid in switch, and all the expressions evaluate to an integral value, so they are valid.Valid switch expression example:Output:Explanation: The switch(2+3) is evaluated and the integral value obtained is 5, which is then compared one by one with case labels and a matching label is found at case 5:. So, printf(2+3 makes 5) is executed and then followed by break; which brings the control out of the switch statement.Other examples for valid switch expressions: switch(2+3), switch(9*16%2), switch(a), switch(a-b) etc.Invalid Expressions:Constant expressions: 4.5,10.0 / 7.1, I am String etc.( Basically anything that doesnt evaluate to an integral value). 4.5 and 10.0/7.1 are float values that are invalid. I am String is a string constant that is different from the character constant and is invalid.Variable expressions (Assume float a; double b;) : a,b, a + 4.5, b * 10 etc. Float and double are invalid datatypes in switch expressions.Example of an Invalid swit

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The switch case statement is used when we have multiple options and we need to perform a different task for each option. Before we see how a switch case statement works in a C program, lets checkout the syntax of it. switch (variable or an integer expression) { case constant: //C Statements ; case constant: //C Statements ; default: //C Statements ; } Flow Diagram of Switch Case Example of Switch Case in C Lets take a simple example to understand the working of a switch case statement in C program. #include <stdio.h> int main() { int num=2; switch(num+2) { case 1: printf("Case1: Value is: %d", num); case 2: printf("Case1: Value is: %d", num); case 3: printf("Case1: Value is: %d", num); default: printf("Default: Value is: %d", num); } return 0; } Output: Default: value is: 2 Explanation: In switch I gave an expression, you can give variable also. I gave num+2, where num value is 2 and after addition the expression resulted 4. Since there is no case defined with value 4 the default case is executed. Twist in a story Introducing Break statement Before we discuss more about break statement, guess the output of this C program. #include <stdio.h> int main() { int i=2; switch (i) { case 1: printf("Case1 "); case 2: printf("Case2 "); case 3: printf("Case3 "); case 4: printf("Case4 "); default: printf("Default "); } return 0; } Output: Case2 Case3 Case4 Default I passed a variable to switch, the value of the variable is 2 so the control jumped to the case 2, However there are no such statements in the above program which could break the flow after the execution of case 2. Thats the reason after case 2, all the subsequent cases and default statements got executed. How to avoid this situation? We can use break statement to break the flow of control after every case block. Break statement in Switch Case Break statements are useful when you want your program-flow to come out of the switch body. Whenever a break statement is encountered in the switch body, the control comes out of the switch case statement. Example of Switch Case with break Im taking the same above that we have seen above but this time we are using break. #include <stdio.h> int main() { int i=2; switch (i) { case 1: printf("Case1 "); break; case 2: printf("Case2 "); break; case 3: printf("Case3 "); break; case 4: printf("Case4 "); break; default: printf("Default "); } return 0; } Output: Case 2 WhydidntI use break statement after default? The control would itself come out of the switch after default so I didnt use it, however if you want to use the break after default then you can use it, there is no harm in doing that. Few Important points regarding Switch Case 1) Case doesnt always need to have order 1, 2, 3 and so on. They can have any integer value after case keyword. Also, case doesnt need to be in an ascending order always, you can specify them in any order as per the need of the program. 2) You can also use characters in switch case. for example #include <stdio.h> int main() { char ch='b'; switch (ch) { case 'd': printf("CaseD "); break; case 'b': printf("CaseB"); break; case 'c': printf("CaseC"); break; case 'z': printf("CaseZ "); break; default: printf("Default "); } return 0; } Output: CaseB 3) The expression provided in the switch should result in a constant value otherwise it would not be valid. For example: Valid expressions for switch switch(1+2+23) switch(1*2+3%4) Invalid switch expressions switch(ab+cd) switch(a+b+c) 4) Nesting of switch statements are allowed, which means you can have switch statements inside another switch. However nested switch statements should be avoided as it makes program more complex and less readable. 5) Duplicate case values are not allowed. For example, the following program is incorrect: This program is wrong because we have two case A here which is wrong as we cannot have duplicate case values. #include <stdio.h> int main() { char ch='B'; switch (ch) { case 'A': printf("CaseA"); break; case 'A': printf("CaseA"); break; case

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From the book "Programming in C" Write a program that takes an integer keyed in from the terminal and extracts and displays each digit of the integer in English. So, if the user types in 932, the program should display nine three two Remember to display zero if the user types in just a 0. Its been hours and its still cant be solved.. Do anyone know how to? This is the code so far #include <stdio.h> int right_digit,number; int main () { scanf("%i",&number); right_digit = number % 10; switch (right_digit) { case '0': printf("0"); break; case '1': printf("one"); break; case '2': printf("two"); break; case '3': printf("three"); break; case '4': printf("four"); break; case '5': printf("five"); break; case '6': printf("six"); break; case '7': printf("seven"); break; case '8': printf("eight"); break; case '9': printf("nine"); break; default: break; } number = number / 10; return 0; } asked Sep 20, 2016 at 13:12 The first problem here is, you're (wrongly) trying to use the character representation of the integer numbers. In your code, right_digit is supposed to represent an integer digit, not a character literal. You must not to use the ''s, just write case 0: ... case 1: and so on. Just to add a bit on your mistake, it was considering the corresponding integer values of the character literal '0', '1' and so on. For ASCII, they are equivalent to case 48: case 49: . . which is not what you intended. That said, You need to put the modulo calculation and switch-case inside a loop and carry out the conversion for all the digits of the input integer. You need to start printing from the beginning (MSB), currently , you're printing from LSB. (Hint: Start printing the result of the modulo operation) printf("0"); should be printf("Zero ");, as per the requirement. answered Sep 20, 2016 at 13:14 Sourav GhoshSourav Ghosh133k16 gold badges184 silver badges263 bronze badges 5 /*USING SWITCH CASE ...ALSO YOU CAN USE '0' and negative numbers */ #include <stdio.h> #include <stdlib.h> int main (void) { int rem,num,sum=0,rem1,num1,add; printf("enter the number:\n"); scanf("%i",&num); if(num<0) { printf("minus "); num=-num; } if(num==0) { printf("zero"); } while(num!=0) { rem=num%10; num=num/10; sum=sum*10 +rem; } /*printf("%i\n",sum);*/ while(sum!=0) { rem1=sum%10; sum=sum/10; switch(rem1) { case 0: printf("zero "); break; case 1: printf("one "); break; case 2: printf("two "); break; case 3: printf("three "); break; case 4: printf("four "); break; case 5: printf("five "); break; case 6: printf("six "); break; case 7: printf("seven "); break; case 8: printf("eight "); break; case 9: printf("nine "); break; default: printf("invalid no"); } } return 0; } answered Jul 23, 2018 at 6:01 Hope this program will help you to understand the logic and I am also posting the solution for same problem using switch case.... /* Write a program that takes an integer keyed in from * the terminal and extracts and displays each digit of the * integer in English. So, if the user types in 932, the * program should display >>> nine three two <<<. * (Remember to display zero if the user types in * just a 0.) */ /*USING IF-ELSE IF*/ #include <stdio.h> #include <stdlib.h> int main (void) { int rem,num,sum=0,rem1; printf("enter the number:\n"); scanf("%i",&num); if(num<0) { printf("minus "); num=-num; } if(num==0) { printf("zero"); } while(num!=0) { rem=num%10; num=num/10; sum=sum*10 +rem; } /*printf("%i\n",sum);*/ while(sum!=0) { rem1=sum%10; sum=sum/10; if(rem1==0) { printf("zero "); } else if(rem1==1) { printf("one "); } else if(rem1==2) { printf("two "); } else if(rem1==3) { printf("three "); } else if(rem1==4) { printf("four "); } else if(rem1==5) { printf("five "); } else if(rem1==6) { printf("six "); } else if(rem1==7) { printf("seven "); } else if(rem1==8) { printf("eight "); } else if(rem1==9) { printf("nine "); } else { printf("invalid no"); } } return 0; } Nico Haase11.6k35 gold badges43 silver badges71 bronze badges answered Jul 23, 2018 at 5:47

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