Submission #922493

#	Time	Username	Problem	Language	Result	Execution time	Memory
922493		SuPythony	Advertisement 2 (JOI23_ho_t2)	C++17	100 / 100	339 ms	18040 KiB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

bool compare(pair<ll,ll> a, pair<ll,ll> b) {
    if (a.first==b.first) {
        return a.second>b.second;
    }
    return a.first<b.first;
}

int main() {
    int n; cin>>n;
    vector<pair<ll,ll>> res(n);
    for (int i=0; i<n; i++) {
        ll x,e; cin>>x>>e;
        res[i].first=x-e;
        res[i].second=x+e;
    }
    sort(res.begin(),res.end(),compare);
    ll max_h=0;
    ll ans=0;
    for (int i=0; i<n; i++) {
        if (res[i].second>max_h) {
            ans++;
            max_h=res[i].second;
        }
    }
    cout<<ans;
    return 0;
}

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