Small Programs

1. Check given number is even or odd without using modulo-division(%) operator.
   Click Here for Solution
   

   #include<stdio.h>
   int main(){
       int n;
       scanf("%d",&n);
       if((n/2)*2==n)  
           printf("%d is even number.",n);
       else
           printf("%d is odd number.",n);
   }
   

   
   
2. Find largest number without using relational operators.
   Click Here for Solution
   

   #include<stdio.h>
   int main(){
       int n1,n2;
       scanf("%d%d",&n1,&n2);
       n1%n2==n1?printf("%d is largest",n2):printf("%d is largest",n1);
   }
   

   
   
3. Swapping between two numbers in single instruction.
   Click Here for Solution
   

   #include<stdio.h>
   int main(){
       int n1,n2;
       scanf("%d%d",&n1,&n2);
       n1=(n1+n2)-(n2=n1);
       printf("n1 = %d \t n2 = %d",n1,n2);
   }
   

   
   

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