Submission #105023

#	Time	Username	Problem	Language	Result	Execution time	Memory
105023		WLZ	Game (IOI14_game)	C++17	42 / 100	1085 ms	12792 KiB

game

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

vector< set<int> > g;
vector<int> was;

void initialize(int n) {
  g.resize(n);
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      if (i != j) {
        g[i].insert(j);
      }
    }
  }
}

void dfs(int u) {
  was[u] = 1;
  for (auto& v : g[u]) {
    if (!was[v]) {
      dfs(v);
    }
  }
}

int hasEdge(int u, int v) {
  if (g[u].count(v)) {
    g[u].erase(v);
    g[v].erase(u);
  }
  was.assign((int) g.size(), 0);
  dfs(u);
  if (was[v]) {
    return 0;
  }
  g[u].insert(v);
  g[v].insert(u);
  return 1;
}

• Subtask 1: 15 / 15
• Subtask 2: 27 / 27
• Subtask 3: 0 / 58