Submission #48931

#	Time	Username	Problem	Language	Result	Execution time	Memory
48931		faishol27	Art Exhibition (JOI18_art)	C++14	0 / 100	2 ms	428 KiB

art

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

typedef long long ll;
#define PUB push_back

struct art{
    ll sz, val;
};

int N;
ll pref[500005], ans = 0;
vector<art> data;

bool comp(art a, art b){
    if(a.sz == b.sz) return a.val < b.val;
    return a.sz < b.sz;
}

int main(){
    cin >> N;
    data.PUB({0,0});
    for(int i=1;i<=N;i++){
        ll a, b;
        cin >> a >> b;
        data.PUB({a, b});
    }

    sort(data.begin(), data.end(), comp);

    for(int i=1;i<=N;i++) pref[i] = pref[i-1]+data[i].val;
    
    int l=1;
    ll bef=0;
    for(int i=1;i<=N;i++){
        ll tmp = (pref[i]-pref[l-1])-(data[i].sz-data[l].sz);
        
        if(bef > tmp){
            l=i;
            tmp = (pref[i]-pref[l-1])-(data[i].sz-data[l].sz);
        }
        
        bef = tmp;
        ans = max(ans, tmp);
    }
    
    cout << ans << endl;
}

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