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Best answer

Function to Add First n Numbers

In this program we are going to use function to add first n numbers from zero to n using C programming.

To learn basics of function in C programming Click Here.

Example :

#include<stdio.h>
#include<conio.h>

//Declaration of addN() funtion
int addN(int x);
void main()
{
int x;
clrscr();
printf("\nEnter a number:");
scanf("%d",&x);

//calling addN() function
printf("\nSum of first %d Numbers = %d",x,addN(x));
getch();
}

//Definition o addN() function
int addN(int n)
{
int i,sum=0;
for(i=1;i<=n;i++)
sum+=i;
return sum;
}

Output :

Output of above program showing sum of first 10 numbers


For More GTU C Programming Lab Experiments Click Here

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