Submission #17752503

Source Code Expand

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

ll N, K;
ll f (ll x) {
  if (x <= 1) return 0;
  if (x >= 2 * N + 1) return 0;
  if (x <= N + 1) return x - 1;
  return (2 * N + 1 - x);
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);

  cin >> N >> K;
  ll ans = 0;
  K = abs(K);
  for (ll i = 2; i <= 2 * N; i++) {
    ans += (f(i) * f(i + K));
  }
  cout << ans << '\n';
  return 0;
}

Submission Info

Submission Time
Task B - Quadruple
User nakaken88
Language C++ (GCC 9.2.1)
Score 400
Code Size 443 Byte
Status AC
Exec Time 4 ms
Memory 3636 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 2
AC × 21
Set Name Test Cases
Sample 00-sample-001.txt, 00-sample-002.txt
All 00-sample-001.txt, 00-sample-002.txt, 01-001.txt, 01-002.txt, 01-003.txt, 01-004.txt, 01-005.txt, 01-006.txt, 01-007.txt, 01-008.txt, 01-009.txt, 01-010.txt, 01-011.txt, 01-012.txt, 01-013.txt, 01-014.txt, 01-015.txt, 01-016.txt, 01-017.txt, 01-018.txt, 01-019.txt
Case Name Status Exec Time Memory
00-sample-001.txt AC 4 ms 3532 KiB
00-sample-002.txt AC 2 ms 3484 KiB
01-001.txt AC 2 ms 3580 KiB
01-002.txt AC 2 ms 3480 KiB
01-003.txt AC 2 ms 3524 KiB
01-004.txt AC 2 ms 3564 KiB
01-005.txt AC 2 ms 3608 KiB
01-006.txt AC 2 ms 3580 KiB
01-007.txt AC 2 ms 3636 KiB
01-008.txt AC 3 ms 3516 KiB
01-009.txt AC 2 ms 3604 KiB
01-010.txt AC 2 ms 3576 KiB
01-011.txt AC 2 ms 3632 KiB
01-012.txt AC 2 ms 3564 KiB
01-013.txt AC 4 ms 3532 KiB
01-014.txt AC 2 ms 3480 KiB
01-015.txt AC 3 ms 3528 KiB
01-016.txt AC 2 ms 3536 KiB
01-017.txt AC 3 ms 3608 KiB
01-018.txt AC 2 ms 3540 KiB
01-019.txt AC 2 ms 3524 KiB