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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int t;
  6.     cin >> t;
  7.     while(t--) {
  8.         long long n;
  9.         cin >> n;
  10.  
  11.         long long sum = n*(n+1)/2;
  12.         long long f = 1;
  13.         while(f <= n) {
  14.             sum -= 2*f; // نجعل كل قوة 2 بالسالب
  15.             f *= 2;
  16.         }
  17.         cout << sum << endl;
  18.     }
  19.     return 0;
  20. }
Success #stdin #stdout 0.01s 5292KB
comments (?)
stdin 
2
stdout 
4390284870744727442
4390284870744727442
https://ideone.com/deUkQU
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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