View Code of Problem 30
#include<iostream>
using namespace std;
int main(void){
int m;
long long sum;
while(cin >> m){
sum=(m+1)*m/2;
cout << sum << endl;
}
} |
Double click to view unformatted code.
Back to problem 30
#include<iostream>
using namespace std;
int main(void){
int m;
long long sum;
while(cin >> m){
sum=(m+1)*m/2;
cout << sum << endl;
}
} |
Double click to view unformatted code.