Submission #1360780

#	Time	Username	Problem	Language	Result	Execution time	Memory
1360780		ezzzay	Swords (NOI23_swords)	C++20	100 / 100	49 ms	1536 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
signed main(){
	int n;
	cin>>n;
	int mx=0;
	vector<pair<int,int>>vc;
	for(int i=1;i<=n;i++){
		int a,b;
		cin>>b>>a;
		vc.pb({a,b});
	}
	sort(vc.begin(),vc.end());
	int cnt=n;
	while(vc.size()){
		if(vc.back().ss <=mx)cnt--;
		mx=max(mx,vc.back().ss);
		vc.pop_back();
	}
	cout<<cnt;
}

• Subtask 1: 11 / 11
• Subtask 2: 21 / 21
• Subtask 3: 34 / 34
• Subtask 4: 25 / 25
• Subtask 5: 9 / 9