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Submission #870422

# Submission time Handle Problem Language Result Execution time Memory
870422 2023-11-07T21:48:36 Z DylanSmith Potatoes and fertilizers (LMIO19_bulves) C++17
100 / 100
 197 ms 34416 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

#define pb push_back
#define sz(x) (int)x.size()
#define all(x) begin(x),end(x)
#define lb(x,y) lower_bound(all(x),y)-begin(x)

mt19937 rng;

void solve() {
    int N; cin >> N;
    priority_queue<ll> left, right;
    for (int i = 0; i < 2 * N; i++) left.push(0), right.push(0);
    ll h = 0;
    ll lOff = 0, rOff = 0;
    for (int i = 0; i < N; i++) {
        int a, b; cin >> a >> b;
        rOff += a;
        lOff -= b;
        rOff -= b;
        if (i + 1 < N) {
            h += abs(-right.top() + rOff);
            if (0 < -right.top() + rOff) {
                left.push(-lOff);
                h -= (-right.top() + rOff) - (left.top() + lOff);
                right.push(-(left.top() + lOff - rOff));
                left.pop();
            } else {
                right.push(rOff);
            }
            if (0 < -right.top() + rOff) {
                left.push(-lOff);
            } else {
                right.push(rOff);
                left.push(-right.top() + rOff - lOff);
                right.pop();
            }
        }
    }
    ll a = 0;
    while (left.top() + lOff > 0) {
        h += a * ((-right.top() + rOff) - (left.top() + lOff));
        a--;
        right.push(-(left.top() + lOff - rOff));
        left.pop();
    }
    while (-right.top() + rOff < 0) {
        left.push(-right.top() + rOff - lOff);
        right.pop();
        a++;
        h += a * ((-right.top() + rOff) - (left.top() + lOff));
    }
    h -= a * (-right.top() + rOff);
    cout << h << "\n";
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    rng = mt19937(chrono::steady_clock::now().time_since_epoch().count());

    solve();

    return 0;
}

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 15 ms 4040 KB Output is correct
5 Correct 35 ms 11452 KB Output is correct
6 Correct 101 ms 18584 KB Output is correct
7 Correct 119 ms 34180 KB Output is correct
8 Correct 184 ms 34300 KB Output is correct
9 Correct 133 ms 29932 KB Output is correct
10 Correct 128 ms 29812 KB Output is correct
11 Correct 146 ms 31756 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 15 ms 4040 KB Output is correct
5 Correct 35 ms 11452 KB Output is correct
6 Correct 101 ms 18584 KB Output is correct
7 Correct 119 ms 34180 KB Output is correct
8 Correct 184 ms 34300 KB Output is correct
9 Correct 133 ms 29932 KB Output is correct
10 Correct 128 ms 29812 KB Output is correct
11 Correct 146 ms 31756 KB Output is correct
12 Correct 47 ms 9400 KB Output is correct
13 Correct 116 ms 29248 KB Output is correct
14 Correct 122 ms 31304 KB Output is correct
15 Correct 186 ms 34320 KB Output is correct
16 Correct 197 ms 33152 KB Output is correct
17 Correct 109 ms 28608 KB Output is correct
18 Correct 1 ms 600 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 600 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 852 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 724 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 852 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 852 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 15 ms 4040 KB Output is correct
12 Correct 35 ms 11452 KB Output is correct
13 Correct 101 ms 18584 KB Output is correct
14 Correct 119 ms 34180 KB Output is correct
15 Correct 184 ms 34300 KB Output is correct
16 Correct 133 ms 29932 KB Output is correct
17 Correct 128 ms 29812 KB Output is correct
18 Correct 146 ms 31756 KB Output is correct
19 Correct 47 ms 9400 KB Output is correct
20 Correct 116 ms 29248 KB Output is correct
21 Correct 122 ms 31304 KB Output is correct
22 Correct 186 ms 34320 KB Output is correct
23 Correct 197 ms 33152 KB Output is correct
24 Correct 109 ms 28608 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 600 KB Output is correct
33 Correct 36 ms 10792 KB Output is correct
34 Correct 84 ms 19064 KB Output is correct
35 Correct 143 ms 31892 KB Output is correct
36 Correct 135 ms 31104 KB Output is correct
37 Correct 167 ms 32120 KB Output is correct
38 Correct 143 ms 31732 KB Output is correct
39 Correct 110 ms 28436 KB Output is correct
40 Correct 126 ms 28944 KB Output is correct
41 Correct 124 ms 29432 KB Output is correct
42 Correct 120 ms 28276 KB Output is correct
43 Correct 120 ms 29564 KB Output is correct
44 Correct 114 ms 28544 KB Output is correct
45 Correct 164 ms 34416 KB Output is correct
46 Correct 115 ms 30064 KB Output is correct
47 Correct 102 ms 29560 KB Output is correct