C program to add two numbers using the function
In this tutorial, we will learn C program to add two numbers using the function
In this topic, we will learn a simple concept of how to add two number using the function in C programming language
already we know the same concept using the operator in a simple way.
if you knew click here C program to the sum of two numbers
This program has following procedures to completion
- Function declaration or prototype
- Ask input from the user for values
- Define the function
- Call the function
- Display result on the screen
Program 1
#include <stdio.h>
#include <stdlib.h>
int sum(int , int);//function declaration or prototype
int main()
{
int num1,num2,total;//variable declaration
printf("Enter the two number ");
scanf("%d %d",&num1,&num2);//getting two number as input from user
total=sum(num1,num2);//calling the function
//The total value (returned by the function) is stored in total variable.
printf("The sum of these numbers :%d",total);
//display the total value
getch();
return 0;
}
int sum(int a, int b)//defining function based in declaration
{
int result=a+b;//find sum of two numbers
//and result of sum stored in result variable
return result;//returning result
}
When the above code is compiled and executed, it produces the following results
Enter the two numbers 45 75 The sum of these numbers :120
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