Submission #280475

#	Time	Username	Problem	Language	Result	Execution time	Memory
280475		amalla	Werewolf (IOI18_werewolf)	C++17	0 / 100	4054 ms	22264 KiB

werewolf

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

using namespace std;

typedef vector<int> VI;
typedef vector<bool> VB;

struct Progress {
    int city;
    bool is_human;
};

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

    int Q = S.size();
    VI A(Q);
    VI adj[N];
    for (int i = 0; i<N; ++i) {
        adj[Y[i]].push_back(X[i]);
        adj[X[i]].push_back(Y[i]);
    }
    vector<int> vis(N, -1);
    for (int i = 0; i < Q; ++i) {
        bool can_make = 0;
        queue<Progress> q;
        q.push({S[i],1});
        while(!q.empty()) {
            Progress curr = q.front(); q.pop();
            if (curr.is_human && curr.city<L[i]) continue;
            if (curr.is_human==0 && curr.city>R[i]) continue;
            if (curr.is_human==0 && curr.city==E[i]) {
                can_make = 1;
                break;
            }
            for (auto e : adj[curr.city]) {
                if (vis[e]==i) continue;
                vis[e] = i;
                q.push({e, curr.is_human});
                if (L[i]<=e && e<=R[i] && curr.is_human) q.push({e, 0});
            }
        }
        A[i] = can_make;
    }
    return A;
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 8
• Subtask 3: 0 / 34
• Subtask 4: 0 / 51