oj.uz

답안 #649499

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
649499 2022-10-10T10:03:56 Z yelul Easter Eggs (info1cup17_eastereggs) C++17
0 / 100
 204 ms 131072 KB 
#include "grader.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> o;
vector<vector<int>> g(520);

void order(int x, int t) {
  o.push_back(x);
  for (int i : g[x]) {
    if (i == t)
      continue;
    order(i, x);
  }
}

int findEgg(int N, vector < pair < int, int > > bridges) {
  
  for (auto p : bridges) {
    int u = p.first, v = p.second;
    g[u].push_back(v);
    g[v].push_back(u);
  }
  
  order(1, -1);

  int l = 0, r = N-2, mid, x = N-1;
  while (l <= r) {
    mid = (l+r)/2;
    vector<int> a;
    for (int i=0; i<=mid; i++)
      a.push_back(o[i]);
    if (query(a)) {
      r = mid-1;
      x = mid;
    } else {
      l = mid+1;
    }
  }

  int ans = o[x];
  o.clear();
  for (auto v : g) 
    v.clear();
  
  return ans;
}

Subtask #1
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 3 ms 1516 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 200 ms 131072 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 204 ms 131072 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -