Submission #1106325

#	Time	Username	Problem	Language	Result	Execution time	Memory
1106325		Luvidi	Advertisement 2 (JOI23_ho_t2)	C++17	100 / 100	122 ms	14088 KiB

Main

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

#define ll long long
#define pll pair<ll, ll>
#define pii pair<int, int>
#define fs first
#define sc second
#define pb push_back

void solve() {
    int n;
    cin>>n;
    pii a[n];
    for(int i=0;i<n;i++){
        int x,e;
        cin>>x>>e;
        a[i]={-x-e,x-e};
    }
    sort(a,a+n);
    int ans=0,m=2e9;
    for(int i=0;i<n;i++){
        if(a[i].sc<m){
            m=a[i].sc;
            ans++;
        }
    }
    cout<<ans<<'\n';
}

int main() {
    #ifdef FPO
        freopen("in","r",stdin);
        freopen("out","w",stdout);
    #endif
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    solve();
}

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