Submission #1197864

#	Time	Username	Problem	Language	Result	Execution time	Memory
1197864		Newtonabc	Advertisement 2 (JOI23_ho_t2)	C++20	100 / 100	271 ms	4860 KiB

Main

#include<bits/stdc++.h>
using namespace std;
vector<pair<int,int>> v;
int main(){
    int n;
    cin>>n;
    for(int i=0;i<n;i++){
        int a,b;
        cin>>a >>b;
        v.push_back({a-b,-(a+b)});
    }
    sort(v.begin(),v.end());
    int ret=0,now=INT_MAX;
    for(auto [a,b]:v) if(now>b) ret++,now=b;
    cout<<ret;
}

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