Submission #413640

#	Time	Username	Problem	Language	Result	Execution time	Memory
413640		vato_chachanidze	Event Hopping 2 (JOI21_event2)	C++14	0 / 100	89 ms	2896 KiB

event2

#include<bits/stdc++.h>
using namespace std;
long long n,k,i,finish,r[100009],l[100009],q;
vector<long long> ans;
int main()
{
	cin>>n>>k;
	for(i=1;i<=n;i++)
	{
		cin>>r[i]>>l[i];	
	}
	
	finish=l[1];
	q=1;
	ans.push_back(1);
	
	for(i=2;i<=n;i++)
	{
		if(q==k)
		{
			break;
		}
		if(finish>r[i])
		{
			continue;
		}
		finish=l[i];
		q++;
		ans.push_back(i);
	}
	
	if(q!=k)
	{
		cout<<"-1"<<endl;
	}
	else
	{
		for(i=0;i<ans.size();i++)
		{
			cout<<ans[i]<<endl;
		}
	}
}

Compilation message (stderr)

event2.cpp: In function 'int main()':
event2.cpp:38:12: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |   for(i=0;i<ans.size();i++)
      |           ~^~~~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 1
• Subtask 3: 0 / 31
• Subtask 4: 0 / 61