C Program to find the sum of two numbers using user-defined function.

In this example, we will calculate the sum of to numbers using user-defined function.

Here in the output we have taked two numbers 23 and 65 which after calculation gives 88.

PROGRAM

#include<stdio.h>
#include<conio.h>
int sum(int a,int b);
void main()
{
    int x,y,res=0;
    printf("Enter the values of x and y :");
    scanf("%d%d",&x,&y);
    res=sum(x,y);
    printf("The sum is : %d",res);
    getch();
}
int sum(int a,int b)
{
    return(a+b);
}

OUTPUT

Enter the values of x and y :23

The sum is : 88

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