Problem Details

#	When	Author	Problem	Language	CPU	Memory
5506	2022-06-04 00:25:06	ewu_battle21u_08	Sum Game II	C++ 14	4 ms	3440 kb	Accepted

#	CPU	Memory	Points
1	3 ms	3392 kb	1	Accepted

2	3 ms	3440 kb	1	Accepted

3	4 ms	3436 kb	1	Accepted

4	4 ms	3400 kb	1	Accepted

5	3 ms	3432 kb	1	Accepted

6	3 ms	3424 kb	1	Accepted

7	3 ms	3376 kb	1	Accepted

Code: (Toggle Highlighting) (Copy Source Code)

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int t;
    cin >> t;
    long long n[t];
    for (int i = 0; i < t; i++)
    {
        long long sum = 0;
        cin >> n[i];
        
        sum=(n[i] * (n[i] + 1)) / 2;
        cout << sum -n[i]<< endl;
    }
}

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int t;
    cin >> t;
    long long n[t];
    for (int i = 0; i < t; i++)
    {
        long long sum = 0;
        cin >> n[i];
 
        sum=(n[i] * (n[i] + 1)) / 2;
        cout << sum -n[i]<< endl;
    }
}