Submission #896111

#	Time	Username	Problem	Language	Result	Execution time	Memory
896111		Abdalaziz_Alshami	Event Hopping (BOI22_events)	C++17	0 / 100	279 ms	18516 KiB

events

#include<iostream>
#include<map>
#include<set>
#include<utility>
#define st first
#define ed second
#define int int64_t
using namespace std;
signed main()
{
	int n,q; cin>>n>>q;
	map<int,set<int>>m;
	for(int i=0;i<n;i++)
	{
		int u,v; cin>>u>>v;
		m[u].insert(v);
	}
	while(q--)
	{
		int u,v;  cin>>u>>v;
		if(m[u].count(v)) cout<<1<<endl;
		else  cout<<"impossible"<<endl;
	}
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30