oj.uz

Submission #894178

# Submission time Handle Problem Language Result Execution time Memory
894178 2023-12-28T02:18:25 Z vovik Bubble Sort 2 (JOI18_bubblesort2) C++
100 / 100
 2015 ms 48616 KB 
#include <bits/stdc++.h>

std::vector<int> countScans(std::vector<int> A, std::vector<int> X, std::vector<int> V);

struct node {
    std::pair<int, int> x;
    int y = rand();
    int L = 0, R = 0;
    int sz = 1;
    int cost = -1e9;
};

const int N = 1e6 + 5;
node t[N];
int cur = 0;

void pull(int v) {
    t[v].sz = t[t[v].L].sz + t[t[v].R].sz + 1;
    t[v].cost = std::max({t[t[v].L].cost, t[v].x.second - t[t[v].L].sz, t[t[v].R].cost - t[t[v].L].sz - 1});
}

int merge(int v, int u) {
    if (!v || !u) return v | u;
    if (t[v].y > t[u].y) return t[v].R = merge(t[v].R, u), pull(v), v;
    return pull(t[u].L = merge(v, t[u].L)), pull(u), u;
}

std::pair<int, int> split(int v, std::pair<int, int> x) {
    if (!v) return {v, v};
    if (t[v].x <= x) {
        auto [a, b] = split(t[v].R, x);
        return t[v].R = a, pull(v), std::pair<int, int>{v, b};
    }
    auto [a, b] = split(t[v].L, x);
    return t[v].L = b, pull(v), std::pair<int, int>{a, v};
}

void add(int&v, std::pair<int, int> x) {
    auto [a, b] = split(v, x);
    t[++cur].x = x;
    pull(cur);
    v = merge(merge(a, cur), b);
}

void del(int&v, std::pair<int, int> x) {
    auto [a, b] = split(v, x);
    auto [y, z] = split(a, {x.first, x.second - 1});
    v = merge(y, b);
}

std::vector<int> countScans(std::vector<int> A, std::vector<int> X, std::vector<int> V) {
    t[0].sz = 0;
    std::vector<int> ans(X.size());
    int v = 0;
    for (int i = 0; i < A.size(); ++i) add(v, {A[i], i});
    for (int i = 0; i < X.size(); ++i) del(v, {A[X[i]], X[i]}), A[X[i]] = V[i], add(v, {A[X[i]], X[i]}), ans[i] = t[v].cost;
    return ans;
}


#ifdef __APPLE__
#include <cstdio>
#include <cstdlib>
#include <vector>

int readInt() {
    int i;
    if (scanf("%d", &i) != 1) {
        fprintf(stderr, "Error while reading input\n");
        exit(1);
    }
    return i;
}

int main() {
    int N, Q;
    N = readInt();
    Q = readInt();

    std::vector<int> A(N);
    for (int i = 0; i < N; i++)
        A[i] = readInt();

    std::vector<int> X(Q), V(Q);
    for (int j = 0; j < Q; j++) {
        X[j] = readInt();
        V[j] = readInt();
    }

    std::vector<int> res = countScans(A, X, V);

    for (int j = 0; j < int(res.size()); j++)
        printf("%d\n", res[j]);
}
#endif

Compilation message

bubblesort2.cpp: In function 'std::pair<int, int> split(int, std::pair<int, int>)':
bubblesort2.cpp:31:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   31 |         auto [a, b] = split(t[v].R, x);
      |              ^
bubblesort2.cpp:34:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   34 |     auto [a, b] = split(t[v].L, x);
      |          ^
bubblesort2.cpp: In function 'void add(int&, std::pair<int, int>)':
bubblesort2.cpp:39:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   39 |     auto [a, b] = split(v, x);
      |          ^
bubblesort2.cpp: In function 'void del(int&, std::pair<int, int>)':
bubblesort2.cpp:46:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   46 |     auto [a, b] = split(v, x);
      |          ^
bubblesort2.cpp:47:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   47 |     auto [y, z] = split(a, {x.first, x.second - 1});
      |          ^
bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:55:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for (int i = 0; i < A.size(); ++i) add(v, {A[i], i});
      |                     ~~^~~~~~~~~~
bubblesort2.cpp:56:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |     for (int i = 0; i < X.size(); ++i) del(v, {A[X[i]], X[i]}), A[X[i]] = V[i], add(v, {A[X[i]], X[i]}), ans[i] = t[v].cost;
      |                     ~~^~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 27736 KB Output is correct
2 Correct 14 ms 27996 KB Output is correct
3 Correct 13 ms 27740 KB Output is correct
4 Correct 13 ms 27736 KB Output is correct
5 Correct 13 ms 27740 KB Output is correct
6 Correct 13 ms 27736 KB Output is correct
7 Correct 13 ms 27740 KB Output is correct
8 Correct 13 ms 27736 KB Output is correct
9 Correct 13 ms 27740 KB Output is correct
10 Correct 13 ms 27740 KB Output is correct
11 Correct 13 ms 27852 KB Output is correct
12 Correct 13 ms 27740 KB Output is correct
13 Correct 13 ms 27740 KB Output is correct
14 Correct 13 ms 27740 KB Output is correct
15 Correct 13 ms 27740 KB Output is correct
16 Correct 12 ms 27924 KB Output is correct
17 Correct 13 ms 27740 KB Output is correct
18 Correct 13 ms 27760 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 27736 KB Output is correct
2 Correct 14 ms 27996 KB Output is correct
3 Correct 13 ms 27740 KB Output is correct
4 Correct 13 ms 27736 KB Output is correct
5 Correct 13 ms 27740 KB Output is correct
6 Correct 13 ms 27736 KB Output is correct
7 Correct 13 ms 27740 KB Output is correct
8 Correct 13 ms 27736 KB Output is correct
9 Correct 13 ms 27740 KB Output is correct
10 Correct 13 ms 27740 KB Output is correct
11 Correct 13 ms 27852 KB Output is correct
12 Correct 13 ms 27740 KB Output is correct
13 Correct 13 ms 27740 KB Output is correct
14 Correct 13 ms 27740 KB Output is correct
15 Correct 13 ms 27740 KB Output is correct
16 Correct 12 ms 27924 KB Output is correct
17 Correct 13 ms 27740 KB Output is correct
18 Correct 13 ms 27760 KB Output is correct
19 Correct 24 ms 27996 KB Output is correct
20 Correct 25 ms 28236 KB Output is correct
21 Correct 25 ms 28248 KB Output is correct
22 Correct 25 ms 28248 KB Output is correct
23 Correct 24 ms 27996 KB Output is correct
24 Correct 25 ms 27996 KB Output is correct
25 Correct 23 ms 27996 KB Output is correct
26 Correct 22 ms 28296 KB Output is correct
27 Correct 24 ms 27992 KB Output is correct
28 Correct 24 ms 27996 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 27996 KB Output is correct
2 Correct 75 ms 28928 KB Output is correct
3 Correct 120 ms 29708 KB Output is correct
4 Correct 127 ms 29520 KB Output is correct
5 Correct 118 ms 29700 KB Output is correct
6 Correct 148 ms 29704 KB Output is correct
7 Correct 122 ms 29520 KB Output is correct
8 Correct 131 ms 29708 KB Output is correct
9 Correct 122 ms 29520 KB Output is correct
10 Correct 84 ms 29524 KB Output is correct
11 Correct 81 ms 29704 KB Output is correct
12 Correct 81 ms 29704 KB Output is correct
13 Correct 77 ms 29532 KB Output is correct
14 Correct 73 ms 29528 KB Output is correct
15 Correct 71 ms 29708 KB Output is correct
16 Correct 70 ms 29704 KB Output is correct
17 Correct 71 ms 29952 KB Output is correct
18 Correct 62 ms 29520 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 27736 KB Output is correct
2 Correct 14 ms 27996 KB Output is correct
3 Correct 13 ms 27740 KB Output is correct
4 Correct 13 ms 27736 KB Output is correct
5 Correct 13 ms 27740 KB Output is correct
6 Correct 13 ms 27736 KB Output is correct
7 Correct 13 ms 27740 KB Output is correct
8 Correct 13 ms 27736 KB Output is correct
9 Correct 13 ms 27740 KB Output is correct
10 Correct 13 ms 27740 KB Output is correct
11 Correct 13 ms 27852 KB Output is correct
12 Correct 13 ms 27740 KB Output is correct
13 Correct 13 ms 27740 KB Output is correct
14 Correct 13 ms 27740 KB Output is correct
15 Correct 13 ms 27740 KB Output is correct
16 Correct 12 ms 27924 KB Output is correct
17 Correct 13 ms 27740 KB Output is correct
18 Correct 13 ms 27760 KB Output is correct
19 Correct 24 ms 27996 KB Output is correct
20 Correct 25 ms 28236 KB Output is correct
21 Correct 25 ms 28248 KB Output is correct
22 Correct 25 ms 28248 KB Output is correct
23 Correct 24 ms 27996 KB Output is correct
24 Correct 25 ms 27996 KB Output is correct
25 Correct 23 ms 27996 KB Output is correct
26 Correct 22 ms 28296 KB Output is correct
27 Correct 24 ms 27992 KB Output is correct
28 Correct 24 ms 27996 KB Output is correct
29 Correct 29 ms 27996 KB Output is correct
30 Correct 75 ms 28928 KB Output is correct
31 Correct 120 ms 29708 KB Output is correct
32 Correct 127 ms 29520 KB Output is correct
33 Correct 118 ms 29700 KB Output is correct
34 Correct 148 ms 29704 KB Output is correct
35 Correct 122 ms 29520 KB Output is correct
36 Correct 131 ms 29708 KB Output is correct
37 Correct 122 ms 29520 KB Output is correct
38 Correct 84 ms 29524 KB Output is correct
39 Correct 81 ms 29704 KB Output is correct
40 Correct 81 ms 29704 KB Output is correct
41 Correct 77 ms 29532 KB Output is correct
42 Correct 73 ms 29528 KB Output is correct
43 Correct 71 ms 29708 KB Output is correct
44 Correct 70 ms 29704 KB Output is correct
45 Correct 71 ms 29952 KB Output is correct
46 Correct 62 ms 29520 KB Output is correct
47 Correct 407 ms 34180 KB Output is correct
48 Correct 1856 ms 47028 KB Output is correct
49 Correct 1870 ms 48616 KB Output is correct
50 Correct 1926 ms 48456 KB Output is correct
51 Correct 1914 ms 48456 KB Output is correct
52 Correct 2015 ms 48444 KB Output is correct
53 Correct 1989 ms 48452 KB Output is correct
54 Correct 1736 ms 48452 KB Output is correct
55 Correct 1866 ms 48452 KB Output is correct
56 Correct 1788 ms 48448 KB Output is correct
57 Correct 1884 ms 48448 KB Output is correct
58 Correct 1690 ms 48452 KB Output is correct
59 Correct 1540 ms 47956 KB Output is correct
60 Correct 1545 ms 47936 KB Output is correct
61 Correct 1591 ms 47688 KB Output is correct
62 Correct 1595 ms 48164 KB Output is correct
63 Correct 1546 ms 47936 KB Output is correct
64 Correct 1667 ms 47940 KB Output is correct
65 Correct 1562 ms 47680 KB Output is correct
66 Correct 1635 ms 47684 KB Output is correct
67 Correct 1623 ms 47684 KB Output is correct