Function with arguments & no return value in C

Notes:

Function with arguments and no return value in C Programming:
Function with arguments and without return value in C:
Function with parameters and without return value in C:
- How to create a function; which accepts parameters and does not return any value

Ex:

#include <stdio.h>

void square(int num);
void sum(int num1,int num2);

int main()
{
square(2);
square(3);
printf("\n");
sum(2,3);
sum(3,4);

return 0;
}

void square(int num)
{
printf("%d\n", num * num);
}

void sum(int num1,int num2)
{
printf("%d\n", num1 + num2);
}