/ SeriousOJ /

Record Detail

Accepted


  
# Status Time Cost Memory Cost
#1 Accepted 1ms 540.0 KiB
#2 Accepted 1ms 540.0 KiB
#3 Accepted 1ms 540.0 KiB
#4 Accepted 1ms 488.0 KiB
#5 Accepted 3ms 540.0 KiB
#6 Accepted 3ms 476.0 KiB
#7 Accepted 2ms 584.0 KiB
#8 Accepted 4ms 540.0 KiB

Code

#include <bits/stdc++.h>

#pragma GCC optimize("Ofast")
using namespace std;

// #ifndef ONLINE_JUDGE
// #include "Ash.cpp"
// #else
// #define dbg(...)
// #define dbgA(...)
// #endif

void solve(int cs) {
  int64_t n;
  cin >> n;
  int64_t res = n * (n - 1) / 2;
  int k = 1;
  while (k * 2 < n) k *= 2;
  n = k;
  while (n) {
    res += n / 2;
    n >>= 1;
  }
  cout << res << "\n";
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int tc = 1;
  cin >> tc;
  for (int cs = 1; cs <= tc; cs++) {
    solve(cs);
  }
  return 0;
}

Information

Submit By
Type
Submission
Problem
P1026 LUFA cup 2024
Language
C++20 (G++ 13.2.0)
Submit At
2024-07-14 07:31:59
Judged At
2024-07-14 07:31:59
Judged By
Score
100
Total Time
4ms
Peak Memory
584.0 KiB