Submission #1020571

#	Time	Username	Problem	Language	Result	Execution time	Memory
1020571		NeroZein	Fountain Parks (IOI21_parks)	C++17	5 / 100	44 ms	10176 KiB

parks

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

using namespace std; 

int construct_roads(vector<int> x, vector<int> y) {
  int n = (int) x.size();
  vector<pair<int, int>> ys; 
  for (int i = 0; i < n; ++i) {
    ys.emplace_back(y[i], i); 
  }
  sort(ys.begin(), ys.end());
  vector<int> u(n - 1), v(n - 1), a(n - 1), b(n - 1);
  for (int i = 0; i < n - 1; ++i) {
    if (ys[i + 1].first - ys[i].first != 2) {
      return 0; 
    }
    u[i] = ys[i].second;
    v[i] = ys[i + 1].second;
    a[i] = 1;
    b[i] = ys[i].first + 1; 
  }
  build(u, v, a, b); 
  return 1;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30