Submission #1229143

#	Time	Username	Problem	Language	Result	Execution time	Memory
1229143		who-read-is-dog	Art Exhibition (JOI18_art)	C++20	0 / 100	1 ms	1344 KiB

art

#include<bits/stdc++.h>
using namespace std;
const int N = 1e5 + 5;
vector<pair<int, int>> a(N);
vector<int> ok(N);
int INF = 1e18;
int main(){
    int n; cin >> n;
    for(int i = 1; i <= n; i++) cin >> a[i].first >> a[i].second;
    sort(a.begin() + 1, a.begin() + n + 1);
    ok[1] = a[1].second;
    for(int i = 2; i <= n; i++){
        ok[i] = ok[i - 1] + a[i].second;
    }
    // ok[r] - ok[l - 1] - a[r].first + a[l].first
    int res = -INF; int maxping = -INF;
    for(int i = 1; i <= n; i++){
        res = max(res, a[i].first - ok[i - 1]);
        maxping = max(maxping, res - a[i].first + ok[i]);
    }
    cout << maxping;
}

Compilation message (stderr)

art.cpp:6:11: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
    6 | int INF = 1e18;
      |           ^~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 50