제출 #1254732

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1254732		MilosMilutinovic	축제 (IOI25_festival)	C++20	0 / 100	1096 ms	4544 KiB

festival

#include "festival.h"
#include <bits/stdc++.h>

using namespace std;

vector<int> max_coupons(int A, vector<int> p, vector<int> t) {
  int n = int(p.size());
  vector<vector<int>> at(5);
  vector<int> c(5);
  for (int i = 0; i < n; i++) {
    at[t[i]].push_back(i);
    c[t[i]] += 1;
  }
  for (int i = 1; i <= 4; i++) {
    sort(at[i].begin(), at[i].end(), [&](int x, int y) {
      return p[x] < p[y];
    }); 
  }
  auto Check = [&](vector<int> ids) {
    int n = int(ids.size());
    int64_t cur = A;
    vector<bool> was(n);
    for (int it = 0; it < n; it++) {
      cur = min(cur, int64_t(1e17));
      int id = -1;
      for (int i = 0; i < n; i++) {
        if (!was[i] && cur >= p[ids[i]]) {
          id = i;
          break;
        }
      }
      if (id == -1) {
        return false;
      }
      cur = (cur - p[ids[id]]) * t[ids[id]];
      was[id] = true;
    }
    return true;
  };
  vector<int> res;
  for (int i1 = 0; i1 <= c[1]; i1++) {
    for (int i2 = 0; i2 <= c[2]; i2++) {
      for (int i3 = 0; i3 <= c[3]; i3++) {
        for (int i4 = 0; i4 <= c[4]; i4++) {
          vector<int> ids;
          for (int i = 0; i < i4; i++) {
            ids.push_back(at[4][i]);
          }
          for (int i = 0; i < i3; i++) {
            ids.push_back(at[3][i]);
          }
          for (int i = 0; i < i2; i++) {
            ids.push_back(at[2][i]);
          }
          for (int i = 0; i < i1; i++) {
            ids.push_back(at[1][i]);
          }
          if (Check(ids) && int(ids.size()) > int(res.size())) {
            res = ids;
          }
        }
      }
    }
  }
  return res;
}

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