Submission #917422

#	Time	Username	Problem	Language	Result	Execution time	Memory
917422		ting39	Advertisement 2 (JOI23_ho_t2)	C++17	100 / 100	349 ms	18044 KiB

Main

#include<bits/stdc++.h>
#define int long long
#define pii pair<int,int>
#define F first
#define S second
using namespace std;
signed main(){
	int n;
	cin>>n;
	vector<pii> vp(n);
	for(int i=0;i<n;i++){
		int a,b;
		cin>>a>>b;
		vp[i]={a-b,a+b};
	}
	sort(vp.begin(),vp.end(),[](auto i,auto j){
		if(i.F==j.F) return i.S>j.S;
		return i.F<j.F;
	});
	int ans=0,mx=-1e18;
	for(int i=0;i<n;i++){
		if(vp[i].S>mx) ans++;
		mx=max(mx,vp[i].S);
	}
	cout<<ans<<endl;
}

• Subtask 1: 10 / 10
• Subtask 2: 23 / 23
• Subtask 3: 36 / 36
• Subtask 4: 31 / 31