Write a C program to print sum of n numbers

PROGRAM: Write a C program to print sum of n numbers

#include<stdio.h>
main()
{
int i,n,sum=0;
printf("Enter a number\n");
scanf("%d",&n);
for(i=0;i<=n;i++)
{
sum=sum+i;

}
printf("%d\n",sum);

}

OUTPUT:-

Enter a number
10
55