View Code of Problem 30
#include <stdio.h>
int main(){
int n,sum;
while(scanf("%d",&n) != EOF)
{
sum = (n + 1)*n/2;
printf("%d\n",sum);
}
return 0;
} |
Double click to view unformatted code.
Back to problem 30
#include <stdio.h>
int main(){
int n,sum;
while(scanf("%d",&n) != EOF)
{
sum = (n + 1)*n/2;
printf("%d\n",sum);
}
return 0;
} |
Double click to view unformatted code.