Submission #988833

#	Time	Username	Problem	Language	Result	Execution time	Memory
988833		HienTD	Advertisement 2 (JOI23_ho_t2)	C++11	100 / 100	122 ms	13680 KiB

Main

#include <bits/stdc++.h>
#define int long long
#define rep(i, l, r) for(int i = l; i <= r; i ++)
#define fi first
#define se second
#define endl '\n'
 
using namespace std;
 
typedef pair<int, int> pii;
 
bool cmp(pii a, pii b){
    if(a.first != b.first) return a.first < b.first;
    return a.second > b.second;
}
 
void solve(){
    int N; cin >> N;
    vector<pii> point;
    rep(i, 1, N){
        int X, E;
        cin >> X >> E;
        point.push_back({X - E, X + E});
    }
 
    sort(point.begin(), point.end(), cmp);
 
    int ma = -1;
    int cnt = 0;
    for(pii p : point){
        if(ma < p.second){
            ma = p.second;
            cnt ++;
        }
    }
    cout << cnt;
}
 
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
 
    solve();
}

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