Submission #48932

#	Time	Username	Problem	Language	Result	Execution time	Memory
48932		faishol27	Art Exhibition (JOI18_art)	C++14	0 / 100	2 ms	376 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;

ll sliding_window(int len){
    ll ret = 0;

    for(int i=1;i+len-1<=N;i++){
        ll tmp = (pref[i+len-1]-pref[i-1])-(data[i+len-1].sz-data[i].sz);
        ret = max(ret, tmp);
    }

    return ret;
}

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, r=N;
    while(l<=r){
        int m = (l+r)/2;
        ll tmp = sliding_window(m);

        if(tmp > ans) l = m+1;
        else r = m-1;

        ans = max(tmp, ans);
    }
    cout << ans << endl;
}

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