Submission #1189186

#	Time	Username	Problem	Language	Result	Execution time	Memory
1189186		atillama	Art Exhibition (JOI18_art)	C++20	0 / 100	0 ms	320 KiB

art

#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
typedef tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> indexed_multiset;

#define int long long
#define double long double
#define pb push_back
#define fastio ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define debug(x) cout << #x << " = " << x << '\n';
#define vdebug(a) cout << #a << " = "; for(auto x : a) cout << x << " "; cout << '\n';

const double eps = 1e-9;
const int mod = 1e9 + 7;
const int N = 2e5 + 5;
const int INF = 1e18;

signed main(){
    fastio;
    int n;
    cin >> n;
    vector<pair<int, int>> v(n);
    vector<int> pref1(n);
    vector<int> pref2(n);
    for(int i = 0; i < n; i++){
        cin >> v[i].first >> v[i].second;
    }
    sort(v.begin(), v.end());
    for(int i = 0; i < n; i++){
        if(i == 0){
            pref1[i] = 0;
            pref2[i] = v[i].second;
        }else{
            pref1[i] = pref1[i - 1] + v[i].first - v[i - 1].first;
            pref2[i] = pref2[i - 1] + v[i].second;
        }
    }
    int ans = 0;
    for(int i = 0; i < n; i++){
        ans = max(ans, pref2[i] - pref1[i]);
    }
    cout << ans << '\n';
}
/*
    freopen("x.in", "r", stdin);
    freopen("x.out", "w", stdout);
*/

//atilla

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