all about if,else,if else,switch and algorithms associated with them //program of if-else #include<stdio.h> int main() { int a,b; printf("Enter two numbers:"); scanf("%d %d",&a,&b); if(a>b) { printf("a is bigger"); } else printf("b is bigger"); return 0; }

//program of switch #include<stdio.h> int main() { int n; printf("Enter your choice."); printf("1.hi"); printf("2.hello"); scanf("%d",&n); switch(n) { case 1:printf("hi"); break;

case 2:printf("hello");
       break;

default:printf("Wrong choice!!!");

} return 0; }