C Program to Add Two Numbers Using Functions

In this article we will learn about C Program to Add Two Numbers Using Functions. We will define here a custom function which returns the sum of two numbers. Then we call the custom function in the main function and print the result. Please read my all articles of C-Programming here.

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C Program to Add Two Numbers Using Functions

#include<stdio.h>

//define the user defined function of Add()

int sum_digit(int x, int y){
    return x+y;
}

int main(){
    int a , b ,sum;

    //addin inputs
    printf("Enter First Number: ");
    scanf("%d", &a);
    printf("Enter the second Number: ");
    scanf("%d", &b);

    // calling the out function
sum= sum_digit(a,b);

// dispaly the output

printf("sum of two numbers is: %d", sum );

return 0;

}

To run the application you can see the output like below,

Code Explanation

• We have defined a custom function named sum_digit which returns the sum of two numbers.

int sum_digit(int x, int y){
    return x+y;
}

• We have defined a custom function named sum_digit which returns the sum of two numbers.
• Then, we call the custom function in the main function. This gives us the sum of two numbers. This gets stored in the sum named variable.

// calling the out function
sum= sum_digit(a,b);

// dispaly the output

printf("sum of two numbers is: %d", sum );

Conclusion

We discussed here how to add two numbers using functions in C Programming language.

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