# C Exercises: A simple structure of function

## C Function : Exercise-1 with Solution

Write a program in C to show the simple structure of a function.
Expected Output :

```The total is :  11
```

C Code:

```#include <stdio.h>

int sum (int, int);//function declaration
int main (void)
{
int total;
printf("\n\n Function : a simple structure of function :\n");
printf("------------------------------------------------\n");
total = sum (5, 6);//function call
printf ("The total is :  %d\n", total);
return 0;
}

int sum (int a, int b) //function definition
{
int s;
s=a+b;
return s; //function returning a value
}
```

C Practice online:

```
#include <stdio.h>

int sum (int, int);//function declaration
int main (void)
{
int total;
printf("\n\n Function : a simple structure of function :\n");
printf("------------------------------------------------\n");
total = sum (5, 6);//function call
printf ("The total is :  %d\n", total);
return 0;
}

int sum (int a, int b) //function definition
{
int s;
s=a+b;
return s; //function returning a value
}
```

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