Problem Details

#	When	Author	Problem	Language	CPU	Memory
3651	2021-12-25 15:24:27	AbuZaforICPC	Sum Game II	C++	4 ms	3488 kb	Accepted

#	CPU	Memory	Points
1	3 ms	3448 kb	1	Accepted

2	4 ms	3348 kb	1	Accepted

3	3 ms	3452 kb	1	Accepted

4	3 ms	3368 kb	1	Accepted

5	2 ms	3448 kb	1	Accepted

6	3 ms	3440 kb	1	Accepted

7	3 ms	3488 kb	1	Accepted

Code: (Toggle Highlighting) (Copy Source Code)

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


            }

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