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Submission #711505

# Submission time Handle Problem Language Result Execution time Memory
711505 2023-03-17T06:31:49 Z Cyanmond Bubble Sort 2 (JOI18_bubblesort2) C++17
38 / 100
 9000 ms 2640 KB 
#include "bubblesort2.h"
#include <bits/stdc++.h>

constexpr int inf = 1 << 30;

std::vector<int> countScans(std::vector<int> A, std::vector<int> X, std::vector<int> V) {
    const int N = (int)A.size(), Q = (int)X.size();
    {
        std::vector<int> vals;
        std::copy(A.begin(), A.end(), std::back_inserter(vals));
        std::copy(V.begin(), V.end(), std::back_inserter(vals));
        std::sort(vals.begin(), vals.end());
        for (auto &e : A) e = (int)(std::lower_bound(vals.begin(), vals.end(), e) - vals.begin());
        for (auto &e : V) e = (int)(std::lower_bound(vals.begin(), vals.end(), e) - vals.begin());
    }
    // subtask 1, 2
    const int M =
        std::max(*std::max_element(A.begin(), A.end()), *std::max_element(V.begin(), V.end())) + 1;
    std::vector<int> countL(N);
    for (int i = 0; i < N; ++i) {
        for (int j = i + 1; j < N; ++j) {
            if (A[i] > A[j]) {
                ++countL[j];
            }
        }
    }

    std::vector<int> answer(Q);
    for (int q = 0; q < Q; ++q) {
        const int x = X[q], newVal = V[q];
        const int preVal = A[x];
        for (int i = x + 1; i < N; ++i) {
            if (preVal > A[i]) {
                --countL[i];
            }
        }
        A[x] = newVal;
        for (int i = x + 1; i < N; ++i) {
            if (newVal > A[i]) {
                ++countL[i];
            }
        }
        countL[x] = 0;
        for (int i = 0; i < x; ++i) {
            if (A[i] > newVal) {
                ++countL[x];
            }
        }
        answer[q] = *std::max_element(countL.begin(), countL.end());
    }
    return answer;
}

Compilation message

bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:17:15: warning: unused variable 'M' [-Wunused-variable]
   17 |     const int M =
      |               ^

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 212 KB Output is correct
2 Correct 6 ms 340 KB Output is correct
3 Correct 29 ms 340 KB Output is correct
4 Correct 32 ms 340 KB Output is correct
5 Correct 27 ms 340 KB Output is correct
6 Correct 18 ms 340 KB Output is correct
7 Correct 17 ms 400 KB Output is correct
8 Correct 19 ms 340 KB Output is correct
9 Correct 22 ms 340 KB Output is correct
10 Correct 18 ms 316 KB Output is correct
11 Correct 18 ms 340 KB Output is correct
12 Correct 19 ms 424 KB Output is correct
13 Correct 17 ms 444 KB Output is correct
14 Correct 18 ms 416 KB Output is correct
15 Correct 17 ms 340 KB Output is correct
16 Correct 16 ms 416 KB Output is correct
17 Correct 16 ms 416 KB Output is correct
18 Correct 15 ms 340 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 212 KB Output is correct
2 Correct 6 ms 340 KB Output is correct
3 Correct 29 ms 340 KB Output is correct
4 Correct 32 ms 340 KB Output is correct
5 Correct 27 ms 340 KB Output is correct
6 Correct 18 ms 340 KB Output is correct
7 Correct 17 ms 400 KB Output is correct
8 Correct 19 ms 340 KB Output is correct
9 Correct 22 ms 340 KB Output is correct
10 Correct 18 ms 316 KB Output is correct
11 Correct 18 ms 340 KB Output is correct
12 Correct 19 ms 424 KB Output is correct
13 Correct 17 ms 444 KB Output is correct
14 Correct 18 ms 416 KB Output is correct
15 Correct 17 ms 340 KB Output is correct
16 Correct 16 ms 416 KB Output is correct
17 Correct 16 ms 416 KB Output is correct
18 Correct 15 ms 340 KB Output is correct
19 Correct 354 ms 740 KB Output is correct
20 Correct 469 ms 800 KB Output is correct
21 Correct 256 ms 788 KB Output is correct
22 Correct 340 ms 792 KB Output is correct
23 Correct 278 ms 760 KB Output is correct
24 Correct 262 ms 780 KB Output is correct
25 Correct 247 ms 752 KB Output is correct
26 Correct 269 ms 764 KB Output is correct
27 Correct 225 ms 744 KB Output is correct
28 Correct 257 ms 748 KB Output is correct

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1459 ms 852 KB Output is correct
2 Correct 8404 ms 1748 KB Output is correct
3 Execution timed out 9068 ms 2640 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 212 KB Output is correct
2 Correct 6 ms 340 KB Output is correct
3 Correct 29 ms 340 KB Output is correct
4 Correct 32 ms 340 KB Output is correct
5 Correct 27 ms 340 KB Output is correct
6 Correct 18 ms 340 KB Output is correct
7 Correct 17 ms 400 KB Output is correct
8 Correct 19 ms 340 KB Output is correct
9 Correct 22 ms 340 KB Output is correct
10 Correct 18 ms 316 KB Output is correct
11 Correct 18 ms 340 KB Output is correct
12 Correct 19 ms 424 KB Output is correct
13 Correct 17 ms 444 KB Output is correct
14 Correct 18 ms 416 KB Output is correct
15 Correct 17 ms 340 KB Output is correct
16 Correct 16 ms 416 KB Output is correct
17 Correct 16 ms 416 KB Output is correct
18 Correct 15 ms 340 KB Output is correct
19 Correct 354 ms 740 KB Output is correct
20 Correct 469 ms 800 KB Output is correct
21 Correct 256 ms 788 KB Output is correct
22 Correct 340 ms 792 KB Output is correct
23 Correct 278 ms 760 KB Output is correct
24 Correct 262 ms 780 KB Output is correct
25 Correct 247 ms 752 KB Output is correct
26 Correct 269 ms 764 KB Output is correct
27 Correct 225 ms 744 KB Output is correct
28 Correct 257 ms 748 KB Output is correct
29 Correct 1459 ms 852 KB Output is correct
30 Correct 8404 ms 1748 KB Output is correct
31 Execution timed out 9068 ms 2640 KB Time limit exceeded
32 Halted 0 ms 0 KB -