Submission #1045755

#	Time	Username	Problem	Language	Result	Execution time	Memory
1045755		LittleOrange	Toy Train (IOI17_train)	C++17	0 / 100	5 ms	1748 KiB

train

#include "train.h"
#include<bits/stdc++.h>
using namespace std;
using ll = int;
std::vector<int> who_wins(std::vector<int> a, std::vector<int> r, std::vector<int> u, std::vector<int> v) {
	ll n = a.size();
	ll m = u.size();
	std::vector<int> res(a.size());
	for(int i = 0; i < (int)res.size(); i++)
		res[i] = i % 2;
	vector<vector<ll>> con(n),rcon(n);
	for(ll i = 0;i<m;i++){
		con[u[i]].push_back(v[i]);
		rcon[v[i]].push_back(u[i]);
	}
	vector<ll> ans(n,0);
	vector<ll> st;
	for(ll i = 0;i<n;i++) if(r[i]) st.push_back(i);
	while(st.size()){
		ll i = st.back();st.pop_back();
		if (ans[i]) continue;
		ans[i] = 1;
		for(ll j : rcon[i]) st.push_back(j);
	}
	return ans;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 11
• Subtask 4: 0 / 11
• Subtask 5: 0 / 12
• Subtask 6: 0 / 51