#include<stdio.h> int main(void) { int digit,letter,other; char ch; int i; digit=letter=other=0; printf("Enter 10 characters:"); for(i=1;i<=10;i++){ ch=getchar(); if((ch>='a'&&ch<='z')||(ch>'A'&&ch<='Z')) letter++; else if(ch>='0' && ch<='9') digit++; else other++; } printf("letter=%d,digit=%d,other=%d ",letter,digit,other); return 0; }
#include<stdio.h> int main(void) { int choice,i; double price; for(i=1;i<=5;i++){ printf("[1]Select crisps "); printf("[2]Select popcorn "); printf("[3]Select chocolate "); printf("[4]Select cola "); printf("[0] exit "); printf("Enter choice:"); scanf("%d",&choice); if(choice==0) break; switch(choice){ case 1:price=3.0;break; case 2:price=2.5;break; case 3:price=4.0;break; case 4:price=3.5;break; default:price=0.0;break; } printf("price=%0.1f ",price); } printf("Thanks "); return 0; }
#include<stdio.h> int main(void) { double value1,value2; char op; printf("Type in an expression:"); scanf("%if%c%if",&value1,&op,&value2); switch(op){ case'+': printf("=%.2f ",value1+value2); break; case'-': printf("=%.2f ",value1-value2); break; case'*': printf("=%.2f ",value1*value2); break; case'/': printf("=%.2f ",value1/value2); break; default: printf("Unknown operator "); break; } return 0; }
#include<stdio.h> int main(void) { double value1,value2; char op; printf("Type in an expression:"); scanf("%if%c%if",&value1,&op,&value2); if(op=='+') printf("=%.2f ",value1+value2); else if(op=='-') printf("=%.2f ",value1-value2); else if(op=='*') printf("=%.2f ",value1*value2); else if(op=='/') if(value2!=0) printf("=%.2f ",value1/value2); else printf("Divisor can not be 0! "); else printf("Unknown operator! "); return 0; }