oj.uz

Submission #1071302

# Submission time Handle Problem Language Result Execution time Memory
1071302 2024-08-23T06:37:42 Z vjudge1 Art Exhibition (JOI18_art) C++17
10 / 100
 1 ms 2648 KB 
#include <bits/stdc++.h>
#define int long long
#define fi first
#define se second
using namespace std;

const int N = 5e5 + 11;
pair<int, int> a[N];
int pref[N];
int cost(int i, int j) {
    int sum = pref[j] - pref[i - 1];
    int mx = a[j].fi, mn = a[i].fi;
    return sum - (mx - mn);
}

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n;
    cin >> n;
    
    for(int i = 1; i <= n; i++){
        cin>>a[i].fi>>a[i].se;
    }
    sort(a + 1, a + 1 + n);
    for(int i = 1; i <= n; i++){
        pref[i] = pref[i - 1] + a[i].se;
    }
    int res = 0;
    for(int i = 1; i <= n; i++){
        int l = i, r = n, ans = 0;
        for(int j = 1; j <= 50; j++){
            int m1 = l + (r - l) / 3;
            int m2 = r - (r - l) / 3;
            ans = max({ans, cost(i, m1), cost(i, m2)});
            if(cost(i, m1) > cost(i, m2))l = m1;
            else r = m2;
        }
        for(int j = -50; j <= 50; j++){
            if((l + j) >= i && (l + j) <= n) {
                if(cost(i, l + j) > ans)ans = cost(i, l + j);
            }
        }
        res = max(res, ans);
    }
    cout << res << '\n';
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 0 ms 2648 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 0 ms 2512 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 0 ms 2648 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 0 ms 2512 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Incorrect 1 ms 2396 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 0 ms 2648 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 0 ms 2512 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Incorrect 1 ms 2396 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #4
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 0 ms 2648 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 0 ms 2512 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Incorrect 1 ms 2396 KB Output isn't correct
13 Halted 0 ms 0 KB -