Submission #97210

#	Time	Username	Problem	Language	Result	Execution time	Memory
97210		MatesV13	Wand (COCI19_wand)	C++11	0 / 70	65 ms	10616 KiB

wand

#include <bits/stdc++.h>
using namespace std;
long long n, m, x, y;
short int v[100000];
vector<int> d[100001];
queue<int> q;
void bfs(int x){
	if(!d[x].empty()) 
		for (vector<int>::iterator it=d[x].begin();it != d[x].end(); ++it){
			if(v[*it]==0){q.push(*it); v[*it]=1;}
		}
	y = q.front();
	q.pop();
	bfs(y);
}
int main (){
ios::sync_with_stdio(0);
cin.tie(0);
	cin >> n >> m;
	for (int i=0;i<m;i++){
		cin >> x >> y;
		d[y].push_back(x);
	}
	bfs(1);
	for (int i=0;i<m;i++) cout << v[i];
return 0;
}

• Subtask 1: 0 / 70