Submission #1212450

#	Time	Username	Problem	Language	Result	Execution time	Memory
1212450		mdn2002	Room Temperature (JOI24_ho_t1)	C++20	100 / 100	367 ms	23912 KiB

Main

/*
Mayoeba Yabureru
*/
#pragma GCC optimize("O3,unroll-loops")
#include <bits/stdc++.h>
using namespace std;

void solve() {
  long long n, k;
  cin >> n >> k;

  set<int> s;
  for (int i = 0; i < n; i ++) {
    int x;
    cin >> x;
    s.insert(x % k);
  }

  int ans = k;
  while (n --) {
    int mn = *s.begin(), mx = *--s.end(), dif = mx - mn;
    ans = min(ans, (dif + 1) / 2);
    s.erase(mx);
    s.insert(mx - k);
  }

  cout << ans;
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);

  int T = 1;
  for (int I = 1; I <= T; I++) {
    solve();
  }
}

• Subtask 1: 15 / 15
• Subtask 2: 5 / 5
• Subtask 3: 30 / 30
• Subtask 4: 35 / 35
• Subtask 5: 15 / 15