use funcation calling : give two input and see output
addition sub multi divi remin .
#include<stdio.h>
int add(int a,int b);
int sub(int a,int b);
int multi(int a,int b);
int divi(int a,int b);
int remain(int a,int b);
int main()
{
 int  a,b;
 printf("enter two int number:\n");
 scanf("%d %d",&a,&b);
add(a,b);
  sub(a,b);
  multi(a, b);
  divi(a, b);
 remain( a,b);
 }
/*2 int addition*/
int add(int a,int b)
{
int c;

    c=a+b;
        printf("\n%d",c);
    return 0;
}
/*2 int sub*/
int sub(int a,int b)
{
int c;

    c=a-b;
    printf("\n%d",c);
   return 0;

}
/*2 int multi*/
int multi(int a,int b)
{

int c;
    c=a*b;
    printf("\n%d",c);
    return 0;

}
/*2 int division*/
int divi(int a,int b)
{
int c;

    c=a/b;
    printf("\n%d",c);return 0;

}
//2 int remainder//
int remain(int a,int b)

{

int c;
    c=a%b;
    printf("\n%d",c);
    return 0;
}