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Submission #578415

# Submission time Handle Problem Language Result Execution time Memory
578415 2022-06-16T17:52:15 Z Alexandruabcde Potatoes and fertilizers (LMIO19_bulves) C++14
100 / 100
 146 ms 15176 KB 
#include <bits/stdc++.h>

using namespace std;

constexpr int NMAX = 5e5 + 5;
typedef long long LL;

struct SlopeTrick {
    LL a, b;

    priority_queue <LL> *H;

    SlopeTrick () {
        a = b = 0;

        H = new priority_queue<LL>;
    }

    void operator += (SlopeTrick other) {
        a += other.a;
        b += other.b;

        if (H->size() > other.H->size())
            swap(H, other.H);

        while (!other.H->empty()) {
            H->push(other.H->top());
            other.H->pop();
        }
    }

    void Evaluate () {
        while (a > 0) {
            -- a;
            b += H->top();
            H->pop();
        }
    }
};

int N;
LL D[NMAX];

void Read () {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    cin >> N;

    for (int i = 1; i <= N; ++ i ) {
        LL A, B;
        cin >> A >> B;

        D[i] = D[i-1] + A - B;
    }
}

void Solve () {
    SlopeTrick ans;
    for (int i = 1; i < N; ++ i ) {
        ans.a ++;
        if (D[i] > D[N]) {
            ans.b += (D[i] - D[N]);
            D[i] = D[N];
        }
        ans.b += (-D[i]);
        if (D[i] < 0) D[i] = 0;

        ans.H->push(D[i]);
        ans.H->push(D[i]);

        ans.Evaluate();
    }

    cout << ans.b << '\n';
}

int main () {
    Read();
    Solve();

    return 0;
}

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 10 ms 1660 KB Output is correct
5 Correct 16 ms 2844 KB Output is correct
6 Correct 52 ms 7792 KB Output is correct
7 Correct 111 ms 15176 KB Output is correct
8 Correct 117 ms 13356 KB Output is correct
9 Correct 113 ms 12592 KB Output is correct
10 Correct 72 ms 10320 KB Output is correct
11 Correct 72 ms 10380 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 10 ms 1660 KB Output is correct
5 Correct 16 ms 2844 KB Output is correct
6 Correct 52 ms 7792 KB Output is correct
7 Correct 111 ms 15176 KB Output is correct
8 Correct 117 ms 13356 KB Output is correct
9 Correct 113 ms 12592 KB Output is correct
10 Correct 72 ms 10320 KB Output is correct
11 Correct 72 ms 10380 KB Output is correct
12 Correct 27 ms 4136 KB Output is correct
13 Correct 81 ms 10972 KB Output is correct
14 Correct 124 ms 15172 KB Output is correct
15 Correct 88 ms 13380 KB Output is correct
16 Correct 88 ms 12732 KB Output is correct
17 Correct 83 ms 10452 KB Output is correct
18 Correct 1 ms 340 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 10 ms 1660 KB Output is correct
12 Correct 16 ms 2844 KB Output is correct
13 Correct 52 ms 7792 KB Output is correct
14 Correct 111 ms 15176 KB Output is correct
15 Correct 117 ms 13356 KB Output is correct
16 Correct 113 ms 12592 KB Output is correct
17 Correct 72 ms 10320 KB Output is correct
18 Correct 72 ms 10380 KB Output is correct
19 Correct 27 ms 4136 KB Output is correct
20 Correct 81 ms 10972 KB Output is correct
21 Correct 124 ms 15172 KB Output is correct
22 Correct 88 ms 13380 KB Output is correct
23 Correct 88 ms 12732 KB Output is correct
24 Correct 83 ms 10452 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 39 ms 4044 KB Output is correct
34 Correct 86 ms 10860 KB Output is correct
35 Correct 146 ms 15152 KB Output is correct
36 Correct 129 ms 12868 KB Output is correct
37 Correct 122 ms 13260 KB Output is correct
38 Correct 132 ms 15168 KB Output is correct
39 Correct 87 ms 11320 KB Output is correct
40 Correct 98 ms 10940 KB Output is correct
41 Correct 93 ms 10436 KB Output is correct
42 Correct 95 ms 10436 KB Output is correct
43 Correct 80 ms 10392 KB Output is correct
44 Correct 85 ms 10420 KB Output is correct
45 Correct 115 ms 15144 KB Output is correct
46 Correct 137 ms 10688 KB Output is correct
47 Correct 100 ms 10328 KB Output is correct