Submission #434266

#	Time	Username	Problem	Language	Result	Execution time	Memory
434266		madlogic	Jelly Flavours (IOI20_jelly)	C++17	0 / 100	77 ms	452 KiB

jelly

#include "jelly.h"
#include <bits/stdc++.h>
using namespace std;

int find_maximum_unique(int x, int y, std::vector<int> a, std::vector<int> b) {
  int n = (int) a.size();
  vector<pair<int, int>> jellies(n);
  for (int i = 0; i < n; i++) {
    jellies[i].first = a[i];
    jellies[i].second = b[i];
  }
  sort(jellies.begin(), jellies.end());
  vector<int> pref(n), suff(n);
  for (int i = 0; i < n; i++) {
    vector<int> v;
    for (int j = 0; j <= i; j++) {
      v.push_back(jellies[j].second);
    }
    sort(v.begin(), v.end());
    int tmp = y;
    int cnt = 0;
    for (int& cost : v) {
      if (tmp - cost >= 0) {
        ++cnt;
        tmp -= cost;
      }
    }
    pref[i] = cnt;
  }
  for (int i = n - 1; i >= 0; i--) {
    vector<int> v;
    for (int j = i; j < n; j++) {
      v.push_back(jellies[j].second);
    }
    sort(v.begin(), v.end());
    int tmp = y;
    int cnt = 0;
    for (int& cost : v) {
      if (tmp - cost >= 0) {
        ++cnt;
        tmp -= cost;
      }
    }
    suff[i] = cnt;
  }
  int res = 0;
  for (int i = 0; i < n; i++) {
    int sum = 0;
    for (int j = i; j < n; j++) {
      if (sum + jellies[j].first > x)  {
        break;
      }
      sum += jellies[j].first;
      res = max(res, (j - i + 1) + (i > 0 ? pref[i - 1] : 0) + (j + 1 < n ? suff[j + 1] : 0));
    }
  } 
  return res;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 24
• Subtask 3: 0 / 9
• Subtask 4: 0 / 10
• Subtask 5: 0 / 14
• Subtask 6: 0 / 32