Submission #666250

#	Time	Username	Problem	Language	Result	Execution time	Memory
666250		Bogdan1110	Art Exhibition (JOI18_art)	C++14	0 / 100	0 ms	212 KiB

art

#include <bits/stdc++.h>
#define FAST {ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);}
#define FILES {freopen("input.txt", "r", stdin);freopen("output.txt", "w", stdout);}
#define ll long long
#define ull unsigned long long
#define pqueue priority_queue
#define pb push_back
#define fi first
#define se second
#define ld long double
#define pii pair<int,int>
#define pll pair<long long,long long>
#define all(a) (a).begin(), (a).end()
#define mp make_pair 
using namespace std;

void solve() {
    int n;
    cin >> n;
    vector<pll>v(n);
    vector<ll>vv(n);
    for (int i = 0 ; i < n ; i++ ) {
        cin >> v[i].fi >> v[i].se;
    }

    sort(all(v));
    for (int i = 0 ; i < n ; i++ )
        vv[i] = v[i].se;

    for (int i = 1 ; i < n ; i++ ) {
        v[i].se += v[i-1].se;
    }

    ll res = vv[n-1];
    ll mx = v[n-1].se - v[n-1].fi;
    //v[i].se - v[j].se - ( v[i].fi - v[j].fi)
    for (int i = n-1 ; i >= 0 ; i-- ) {
        ll tren = v[i].se - v[i].fi;
        res = max(res, mx-tren+vv[i]);
        mx = max(mx, tren);
        //cout << mx << endl;
    }

    cout << res << endl;


}

int main () { 
    FAST
    
    int t=1;

    /*
    cin >> t;
    //*/

    int i = 1;
    while(t--) {
        //cout << "Case #" << i++ << ": " ;
        solve();
    }
} 

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:58:9: warning: unused variable 'i' [-Wunused-variable]
   58 |     int i = 1;
      |         ^

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