oj.uz

Submission #106180

# Submission time Handle Problem Language Result Execution time Memory
106180 2019-04-17T06:17:28 Z tictaccat Werewolf (IOI18_werewolf) C++14
0 / 100
 4000 ms 32056 KB 
#include "werewolf.h"
#include <bits/stdc++.h>

using namespace std;

const int INF = 1e8;

void dfsHuman(int u, int N, vector<vector<int>> &adj, vector<bool> &humanReach, int curL) {
    if (humanReach[u] || u < curL) return;
    humanReach[u] = true;
    for (int v: adj[u]) {
        dfsHuman(v,N,adj,humanReach,curL);
    }
}

void dfsWolf(int u, int N, vector<vector<int>> &adj, vector<bool> &wolfReach, int curR) {
    if (wolfReach[u] || u > curR) return;
    wolfReach[u] = true;
    for (int v: adj[u]) {
        dfsWolf(v,N,adj,wolfReach,curR);
    }
}

std::vector<int> check_validity(int N, std::vector<int> X, std::vector<int> Y,std::vector<int> S, std::vector<int> E, std::vector<int> L, std::vector<int> R) {

    int Q = S.size();

    vector<vector<int>> adj(N);
  
    for (int i = 0; i < N; i++) {
        adj[X[i]].push_back(Y[i]);
        adj[Y[i]].push_back(X[i]);
    }

    vector<int> A(Q);

    for (int q = 0; q < Q; q++) {
        //S[q],E[q],L[q],R[q]
        vector<bool> humanReach(N,false), wolfReach(N,false);
        dfsHuman(S[q],N,adj,humanReach,L[q]);
        dfsWolf(E[q],N,adj,wolfReach,R[q]);
        bool connected = false;
        for (int i = 0; i < N; i++) {
            if (humanReach[i] && wolfReach[i]) connected = true;
        }
        A[q] = connected;
    }

  return A;
}

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4070 ms 32056 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -