oj.uz

Submission #894179

# Submission time Handle Problem Language Result Execution time Memory
894179 2023-12-28T02:19:07 Z vovik Bubble Sort 2 (JOI18_bubblesort2) C++
100 / 100
 2223 ms 41564 KB 
#pragma GCC optimize(3)
#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:32:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   32 |         auto [a, b] = split(t[v].R, x);
      |              ^
bubblesort2.cpp:35:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   35 |     auto [a, b] = split(t[v].L, x);
      |          ^
bubblesort2.cpp: In function 'void add(int&, std::pair<int, int>)':
bubblesort2.cpp:40:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   40 |     auto [a, b] = split(v, x);
      |          ^
bubblesort2.cpp: In function 'void del(int&, std::pair<int, int>)':
bubblesort2.cpp:47:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   47 |     auto [a, b] = split(v, x);
      |          ^
bubblesort2.cpp:48:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   48 |     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: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 < A.size(); ++i) add(v, {A[i], i});
      |                     ~~^~~~~~~~~~
bubblesort2.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |     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 13 ms 27736 KB Output is correct
2 Correct 13 ms 27736 KB Output is correct
3 Correct 16 ms 27740 KB Output is correct
4 Correct 18 ms 27740 KB Output is correct
5 Correct 15 ms 27740 KB Output is correct
6 Correct 15 ms 27736 KB Output is correct
7 Correct 15 ms 27740 KB Output is correct
8 Correct 16 ms 27740 KB Output is correct
9 Correct 20 ms 27740 KB Output is correct
10 Correct 15 ms 27856 KB Output is correct
11 Correct 16 ms 27736 KB Output is correct
12 Correct 19 ms 27740 KB Output is correct
13 Correct 19 ms 27748 KB Output is correct
14 Correct 19 ms 27784 KB Output is correct
15 Correct 15 ms 27788 KB Output is correct
16 Correct 15 ms 27740 KB Output is correct
17 Correct 15 ms 27740 KB Output is correct
18 Correct 19 ms 27764 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 27736 KB Output is correct
2 Correct 13 ms 27736 KB Output is correct
3 Correct 16 ms 27740 KB Output is correct
4 Correct 18 ms 27740 KB Output is correct
5 Correct 15 ms 27740 KB Output is correct
6 Correct 15 ms 27736 KB Output is correct
7 Correct 15 ms 27740 KB Output is correct
8 Correct 16 ms 27740 KB Output is correct
9 Correct 20 ms 27740 KB Output is correct
10 Correct 15 ms 27856 KB Output is correct
11 Correct 16 ms 27736 KB Output is correct
12 Correct 19 ms 27740 KB Output is correct
13 Correct 19 ms 27748 KB Output is correct
14 Correct 19 ms 27784 KB Output is correct
15 Correct 15 ms 27788 KB Output is correct
16 Correct 15 ms 27740 KB Output is correct
17 Correct 15 ms 27740 KB Output is correct
18 Correct 19 ms 27764 KB Output is correct
19 Correct 24 ms 27996 KB Output is correct
20 Correct 27 ms 27992 KB Output is correct
21 Correct 26 ms 27992 KB Output is correct
22 Correct 32 ms 27992 KB Output is correct
23 Correct 29 ms 27996 KB Output is correct
24 Correct 26 ms 28048 KB Output is correct
25 Correct 25 ms 28028 KB Output is correct
26 Correct 26 ms 27996 KB Output is correct
27 Correct 26 ms 28056 KB Output is correct
28 Correct 26 ms 28248 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 27996 KB Output is correct
2 Correct 84 ms 28508 KB Output is correct
3 Correct 122 ms 29020 KB Output is correct
4 Correct 136 ms 29196 KB Output is correct
5 Correct 118 ms 29016 KB Output is correct
6 Correct 147 ms 29200 KB Output is correct
7 Correct 146 ms 29012 KB Output is correct
8 Correct 134 ms 29196 KB Output is correct
9 Correct 133 ms 29192 KB Output is correct
10 Correct 87 ms 29012 KB Output is correct
11 Correct 83 ms 29020 KB Output is correct
12 Correct 82 ms 29064 KB Output is correct
13 Correct 73 ms 29008 KB Output is correct
14 Correct 76 ms 29196 KB Output is correct
15 Correct 87 ms 29200 KB Output is correct
16 Correct 82 ms 29192 KB Output is correct
17 Correct 63 ms 29192 KB Output is correct
18 Correct 63 ms 29192 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 27736 KB Output is correct
2 Correct 13 ms 27736 KB Output is correct
3 Correct 16 ms 27740 KB Output is correct
4 Correct 18 ms 27740 KB Output is correct
5 Correct 15 ms 27740 KB Output is correct
6 Correct 15 ms 27736 KB Output is correct
7 Correct 15 ms 27740 KB Output is correct
8 Correct 16 ms 27740 KB Output is correct
9 Correct 20 ms 27740 KB Output is correct
10 Correct 15 ms 27856 KB Output is correct
11 Correct 16 ms 27736 KB Output is correct
12 Correct 19 ms 27740 KB Output is correct
13 Correct 19 ms 27748 KB Output is correct
14 Correct 19 ms 27784 KB Output is correct
15 Correct 15 ms 27788 KB Output is correct
16 Correct 15 ms 27740 KB Output is correct
17 Correct 15 ms 27740 KB Output is correct
18 Correct 19 ms 27764 KB Output is correct
19 Correct 24 ms 27996 KB Output is correct
20 Correct 27 ms 27992 KB Output is correct
21 Correct 26 ms 27992 KB Output is correct
22 Correct 32 ms 27992 KB Output is correct
23 Correct 29 ms 27996 KB Output is correct
24 Correct 26 ms 28048 KB Output is correct
25 Correct 25 ms 28028 KB Output is correct
26 Correct 26 ms 27996 KB Output is correct
27 Correct 26 ms 28056 KB Output is correct
28 Correct 26 ms 28248 KB Output is correct
29 Correct 31 ms 27996 KB Output is correct
30 Correct 84 ms 28508 KB Output is correct
31 Correct 122 ms 29020 KB Output is correct
32 Correct 136 ms 29196 KB Output is correct
33 Correct 118 ms 29016 KB Output is correct
34 Correct 147 ms 29200 KB Output is correct
35 Correct 146 ms 29012 KB Output is correct
36 Correct 134 ms 29196 KB Output is correct
37 Correct 133 ms 29192 KB Output is correct
38 Correct 87 ms 29012 KB Output is correct
39 Correct 83 ms 29020 KB Output is correct
40 Correct 82 ms 29064 KB Output is correct
41 Correct 73 ms 29008 KB Output is correct
42 Correct 76 ms 29196 KB Output is correct
43 Correct 87 ms 29200 KB Output is correct
44 Correct 82 ms 29192 KB Output is correct
45 Correct 63 ms 29192 KB Output is correct
46 Correct 63 ms 29192 KB Output is correct
47 Correct 393 ms 31592 KB Output is correct
48 Correct 1590 ms 40624 KB Output is correct
49 Correct 1840 ms 41544 KB Output is correct
50 Correct 1979 ms 41540 KB Output is correct
51 Correct 2223 ms 41296 KB Output is correct
52 Correct 1973 ms 41540 KB Output is correct
53 Correct 2000 ms 41536 KB Output is correct
54 Correct 1997 ms 41296 KB Output is correct
55 Correct 2190 ms 41540 KB Output is correct
56 Correct 1930 ms 41540 KB Output is correct
57 Correct 2109 ms 41544 KB Output is correct
58 Correct 1836 ms 41536 KB Output is correct
59 Correct 1597 ms 41536 KB Output is correct
60 Correct 1711 ms 41536 KB Output is correct
61 Correct 1855 ms 41536 KB Output is correct
62 Correct 1703 ms 41564 KB Output is correct
63 Correct 1509 ms 41536 KB Output is correct
64 Correct 1715 ms 41552 KB Output is correct
65 Correct 1506 ms 41560 KB Output is correct
66 Correct 1631 ms 41540 KB Output is correct
67 Correct 1567 ms 41536 KB Output is correct