Submission #597619

#	Time	Username	Problem	Language	Result	Execution time	Memory
597619		MilosMilutinovic	Team Contest (JOI22_team)	C++14	100 / 100	387 ms	33604 KiB

team

/**
 *    author:  wxhtzdy
 *    created: 16.07.2022 13:52:34
**/
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);  
  int n;
  cin >> n;
  vector<vector<int>> a(n, vector<int>(3));
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < 3; j++) {
      cin >> a[i][j];
    }
  }
  vector<set<pair<int, int>>> st(3);
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < 3; j++) {
      st[j].emplace(a[i][j], i);
    }
  }             
  vector<bool> is(n);
  while (!st[0].empty() && !st[1].empty() && !st[2].empty()) {
    bool ok = true;
    for (int i = 0; i < 3; i++) {
      int idx = prev(st[i].end())->second;
      for (int j = 0; j < 3; j++) {
        if (i == j) {
          continue;
        }   
        if (a[idx][j] >= a[prev(st[j].end())->second][j]) {
          ok = false;
          is[idx] = true;
        }
      }
    }
    if (ok) {     
      int ans = 0;
      for (int i = 0; i < 3; i++) {
        ans += prev(st[i].end())->first;
      }
      cout << ans << '\n';
      return 0;
    }               
    for (int i = 0; i < 3; i++) {
      while (!st[i].empty() && is[prev(st[i].end())->second]) {
        st[i].erase(prev(st[i].end()));
      }
    }
  }
  cout << -1 << '\n';                                  
  return 0;
}

• Subtask 1: 8 / 8
• Subtask 2: 29 / 29
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 9 / 9
• Subtask 7: 27 / 27