Submission #1128333

#	Time	Username	Problem	Language	Result	Execution time	Memory
1128333		mnbvcxz123	Art Exhibition (JOI18_art)	C++20	100 / 100	166 ms	8688 KiB

art

#include "bits/stdc++.h"
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define ll long long
#define pb push_back
#define in insert
#define F first
#define S second
#define vll vector<ll>
#define all(v) v.begin(),v.end()
#define endl '\n'
#define pii pair<ll,ll>
using namespace std;
const ll INF = 1e18, mod = 1e9 + 7, N = 2e5 + 5;
ll gcd(ll a, ll b){
 if(b == 0){
 return a;
 }
 return gcd(b, a%b);
}
ll lcm(ll a, ll b){
    return (a / gcd(a,b)) * b;
}
void solve(){
    ll n,m;
    cin >> n;
    vector<pii>v;
    v.pb({0, 0});
    ll a,b;
    for(int i = 0; i < n; i++){
       cin >> a >> b;
       v.pb({a,b});
    }
    
    sort(all(v));
   
    ll maxi = 0;
    ll cur = 0;
    for(int i = 1; i <= n; i++){
        cur += v[i].S;
       
    //    pre[i] = pre[i - 1] + v[i].S;
        cur = max(cur, v[i].F + v[i].S);
        maxi = max(maxi, cur - v[i].F);
    }
    cout << maxi << endl;
    /*ll maxi = 0;
    for(int i = 1; i <= n; i++){
        for(int j = i; j <= n; j++){
            maxi = max(maxi, pre[j] - pre[i - 1] - (v[j].F - v[i].F));
        }
    }
    cout << maxi << endl;*/
}
int main() {
    fast;
    ll t = 1;
   // cin >> t;
    while(t--){
        solve();
    }
    return 0;
}

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