This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <iostream>
#include <vector>
 
using namespace std;
 
const int MAX_SOMMET = 5042;
 
bool gagnant[MAX_SOMMET] = {0};
int qui[MAX_SOMMET];
bool recharge[MAX_SOMMET];
 
int nbSommet, nbArete;
vector<int> adj[MAX_SOMMET];
int nbSortant[MAX_SOMMET] = {0};
bool acces[MAX_SOMMET] = {0};
int premier = 1;
void dfs(int sommet, int type) {
    if((type == 1 && acces[sommet]) || (type == 2 && gagnant[sommet]))
        return;
    if(!premier && type == 1) 
        acces[sommet] = 1;
    if(type == 2)
        gagnant[sommet] = 1;
    premier = 0;
    for(auto voisin : adj[sommet]) {
        if(qui[voisin] == 1)
            dfs(voisin, type);
        else {
            nbSortant[voisin]--;
            if(nbSortant[voisin] == 0)
                dfs(voisin, type);
        }
    }
}
void resetSortant() {
    for(int sommet = 0; sommet < nbSommet; sommet++) {
        nbSortant[sommet] = 0;
        acces[sommet] = 0;
    }
    for(int sommet = 0; sommet < nbSommet; sommet++) {
        for(auto voisin : adj[sommet]) {
            nbSortant[voisin]++;
        }
    }
}
vector<int> rep;
vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
    nbSommet = a.size();
    nbArete = u.size();
 
    for(int i = 0; i < nbSommet; i++) {
        gagnant[i] = 0;
        qui[i] = a[i];
        recharge[i] = r[i];
    }
 
    for(int id = 0; id < nbArete; id++)  {
        adj[v[id]].push_back(u[id]);
    }
    int nbPerdu = 0;
    do {
        nbPerdu = 0;
        resetSortant();
        for(int sommet = 0; sommet < nbSommet; sommet++) {
            if(recharge[sommet])
                dfs(sommet, 1);
        }
        for(int sommet = 0; sommet < nbSommet; sommet++) {
            if(recharge[sommet] && !acces[sommet]) {
                nbPerdu++;
                recharge[sommet] = 0;
            }
        }
    } while(nbPerdu > 0);
    resetSortant();
    for(int sommet = 0; sommet < nbSommet; sommet++) {
        if(recharge[sommet]) 
            dfs(sommet, 2);
    }
    for(int sommet = 0; sommet < nbSommet; sommet++) {
        rep.push_back(gagnant[sommet]);
    }
    return rep;
}
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