try yourself |run program

#include <stdio.h> 
#include <conio.h> 
void main(){
 int m;
 int n;
 clrscr();
 printf("\n This is an if() else statement program.");
 printf("\n Enter value of m: ");
 scanf("%d",&m);
 printf("\n Enter value of n: ");
 scanf("%d",&n);
 if(m > n){
 printf("\n %d is greater than %d ",m,n);
 }
 else{
 printf("\n %d is not greater than %d ",m,n);
 }
 getch();
}

Program Output

This is an if() else statement program.
Enter value of m: 10
Enter value of n: 20
10 is not greater than 20