Submission #599784

#	Time	Username	Problem	Language	Result	Execution time	Memory
599784		tpiang	Keys (IOI21_keys)	C++17	0 / 100	0 ms	300 KiB

keys

#include <bits/stdc++.h>

using namespace std;

vector<int> find_reachable(vector<int> r, vector<int> u, vector<int> v, vector<int> c) {
	int n = (int) r.size();
	int m = (int) c.size();
	
	vector<int> ans(n, 0);
	bool flag = false;
	
	for(int i = 0; i < n; i++){
		if(r[i] != 0){
			ans[i] = 1;
			flag = true;
		}
	}
	
	vector<vector<int>> g(n,vector<int>());
	
	for(int i = 0; i < m; i++){
		g[u[i]].push_back(v[i]);
		g[v[i]].push_back(u[i]);
	}
	
	for(int i = 0; i < n; i++){
		if((int)g[i].size() == 0){
			ans[i] = 1;
			flag = true;
		}
	}
	
	if(!flag){
		ans.assign(n,1);
	}
	
	return ans;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 11
• Subtask 3: 0 / 17
• Subtask 4: 0 / 30
• Subtask 5: 0 / 33