View Code of Problem 30
#include<stdio.h>
void main(){
int n,sum;
scanf("%d",&n);
sum=(n+1)*n/2;
printf("%d\n",sum);
} |
Double click to view unformatted code.
Back to problem 30
#include<stdio.h>
void main(){
int n,sum;
scanf("%d",&n);
sum=(n+1)*n/2;
printf("%d\n",sum);
} |
Double click to view unformatted code.