Submission #535241

#	Time	Username	Problem	Language	Result	Execution time	Memory
535241		MKutayBozkurt	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	81.75 / 100	459 ms	159300 KiB

brunhilda

#include <bits/stdc++.h>
using namespace std;
#define int long long
int mx = (int) 1e7 + 37;
int32_t main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n, q; cin >> n >> q;
  vector<int> a(n), d(mx), dp(mx, 1e9);
  for (int &x : a) {
    cin >> x;
    for (int i = x - 1; i < mx; i += x) {
      d[i] = max(d[i], x - 1);
    }
  }

  for (int i = mx - 2; i; i--) d[i] = max(d[i], d[i + 1] - 1);

  dp[0] = 0;
  for (int i = 1; i < mx; i++) {
    dp[i] = dp[i - d[i]] + 1;
  }

  while (q--) {
    int x; cin >> x;
    cout << (dp[x] >= 1e9 ? "oo" : to_string(dp[x])) << '\n';
  }
}

• Subtask 1: 20 / 20
• Subtask 2: 18.88888888888889 / 20
• Subtask 3: 42.857142857142854 / 60