#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
#define MASK(i) (1ULL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
ll gcd(ll a, ll b){return __gcd(a, b);}
ll lcm(ll a, ll b){return a / gcd(a, b) * b;}
ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ull mask){return __builtin_popcountll(mask);}
int ctz(ull mask){return __builtin_ctzll(mask);}
int logOf(ull mask){return 63 - __builtin_clzll(mask);}
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}
double rngesus_d(double l, double r){
double cur = rngesus(0, MASK(60) - 1);
cur /= MASK(60) - 1;
return l + cur * (r - l);
}
template <class T1, class T2>
bool maximize(T1 &a, T2 b){
if (a < b) {a = b; return true;}
return false;
}
template <class T1, class T2>
bool minimize(T1 &a, T2 b){
if (a > b) {a = b; return true;}
return false;
}
template <class T>
void printArr(T container, string separator = " ", string finish = "\n", ostream &out = cout){
for(auto item: container) out << item << separator;
out << finish;
}
template <class T>
void remove_dup(vector<T> &a){
sort(ALL(a));
a.resize(unique(ALL(a)) - a.begin());
}
#include "train.h"
const int N = 5005;
int n, m;
vector<int> calc(int player, vector<int> allowed, vector<int> a, vector<int> r, vector<vector<int>> &graph){
vector<int> deg(n);
for(int i = 0; i < n; ++i) if (allowed[i]) {
for(int j: graph[i]) if (allowed[j]) deg[j]++;
}
vector<int> ans(n);
vector<int> st;
for(int i = 0; i < n; ++i){
if (r[i] && allowed[i]){
st.push_back(i);
ans[i] = 1;
}
}
while(st.size()){
int u = st.back(); st.pop_back();
for(int v: graph[u]) {
if (ans[v]) continue;
if (a[v] == player) {
ans[v] = true;
st.push_back(v);
}
else{
deg[v]--;
if (deg[v] == 0){
ans[v] = true;
st.push_back(v);
}
}
}
}
return ans;
}
vector<int> who_wins(vector<int> a, vector<int> r, vector<int> U, vector<int> V) {
n = a.size(), m = U.size();
vector<vector<int>> graph(n);
for(int i = 0; i < m; ++i) graph[V[i]].push_back(U[i]);
vector<int> ans(n, 1);
while(true){
vector<int> reachable1 = calc(1, ans, a, r, graph);
if (reachable1 == ans) break;
vector<int> unreachable1(n);
for(int i = 0; i < n; ++i) unreachable1[i] = reachable1[i] ^ ans[i];
vector<int> reachable2 = calc(0, ans, a, unreachable1, graph);
for(int i = 0; i < n; ++i) ans[i] ^= reachable2[i];
}
return ans;
}
// int main(void){
// ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);
// clock_t start = clock();
// int n, m; cin >> n >> m;
// vector<int> a(n), r(n);
// for(int i = 0; i < n; ++i) cin >> a[i];
// for(int i = 0; i < n; ++i) cin >> r[i];
// vector<int> u(m), v(m);
// for(int i = 0; i < m; ++i) cin >> u[i] >> v[i];
// printArr(who_wins(a, r, u, v));
// cerr << "Time elapsed: " << clock() - start << " ms\n";
// return 0;
// }
