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