oj.uz

Submission #552608

# Submission time Handle Problem Language Result Execution time Memory
552608 2022-04-23T12:00:57 Z RaresFelix Bubble Sort 2 (JOI18_bubblesort2) C++17
100 / 100
 3970 ms 132372 KB 
#include "bubblesort2.h"
#include <bits/stdc++.h>
using namespace std;
#define MN 1000071
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
int n, q, ma_val;

struct nod {
    int mi, ma, nr_activ;
    int lazy;
} V[4 * MN];

void prop(int u, int s, int d) {
    V[u].mi += V[u].lazy;
    V[u].ma += V[u].lazy;
    if(s != d) {
        V[u << 1].lazy += V[u].lazy;
        V[u << 1 | 1].lazy += V[u].lazy;
    }
    V[u].lazy = 0;
}

void update_range(int l, int r, int v, int u = 1, int s = 1, int d = ma_val) {
    if(r < s || d < l) return;
    prop(u, s, d);
    if(l <= s && d <= r) {
        V[u].lazy = v;
        prop(u, s, d);
        return;
    }
    update_range(l, r, v, u << 1, s, (s + d) >> 1);
    update_range(l, r, v, u << 1 | 1, ((s + d) >> 1) + 1, d);
    V[u].mi = min(V[u << 1].mi, V[u << 1 | 1].mi);
    V[u].ma = max(V[u << 1].ma, V[u << 1 | 1].ma);
}

void init(int u = 1, int s = 1, int d = ma_val) {
    if(s != d) {
        init(u << 1, s, (s + d) >> 1);
        init(u << 1 | 1, ((s + d) >> 1) + 1, d);
    }
    V[u].ma = V[u].nr_activ = V[u].lazy = 0;
    V[u].mi = INT_MAX;
}

void update_active(int p, int v, int u = 1, int s = 1, int d = ma_val) {
    prop(u, s, d);
    if(d < p || p < s) return;
    if(s == d) {
        V[u].nr_activ = v;
        if(!V[u].nr_activ) V[u].ma = V[u].lazy = 0, V[u].mi = INT_MAX;
        return;
    }
    update_active(p, v, u << 1, s, (s + d) >> 1);
    update_active(p, v, u << 1 | 1, ((s + d) >> 1) + 1, d);
    V[u].nr_activ = V[u << 1].nr_activ + V[u << 1 | 1].nr_activ;
    V[u].mi = min(V[u << 1].mi, V[u << 1 | 1].mi);
    V[u].ma = max(V[u << 1].ma, V[u << 1 | 1].ma);
    if(!V[u].nr_activ) V[u].ma = V[u].lazy = 0, V[u].mi = INT_MAX;
}

int query_smaller(int p, int u = 1, int s = 1, int d = ma_val) {
    prop(u, s, d);
    if(p <= s) return 0;
    if(d < p) return V[u].nr_activ;
    return query_smaller(p, u << 1, s, (s + d) >> 1) + query_smaller(p, u << 1 | 1, ((s + d) >> 1) + 1, d);
}

void update_val(int p, int v, int u = 1, int s = 1, int d = ma_val) {
    prop(u, s, d);
    if(p < s || d < p) return;
    if(s == d) {
        V[u].ma = V[u].mi = v;
        return;
    }
    update_val(p, v, u << 1, s, (s + d) >> 1);
    update_val(p, v, u << 1 | 1, ((s + d) >> 1) + 1, d);
    V[u].mi = min(V[u << 1].mi, V[u << 1 | 1].mi);
    V[u].ma = max(V[u << 1].ma, V[u << 1 | 1].ma);
}

int brute(vector<int> A) {
    int re = 0, ok;
    do {
        ok = 0;
        for(int i = 0; i < A.size() - 1; ++i)
            if(A[i] > A[i + 1]) swap(A[i], A[i + 1]), ok = 1;
        re += ok;
    } while (ok);
    return re;
}

vector<int> countScans(vector<int> A,vector<int> X,vector<int> VQ){
    n = A.size(), q = X.size();
    vector<pair<int, int> > Ord;
    map<pair<int, int>, int> MNorm;
    for(int i = 0; i < n; ++i) Ord.push_back({A[i], i});
    for(int i = 0; i < q; ++i)
        Ord.push_back({VQ[i], X[i]});
    sort(Ord.begin(), Ord.end());
    for(int i = 0; i < Ord.size(); ++i) MNorm[Ord[i]] = i + 1;
    for(int i = 0; i < n; ++i) A[i] = MNorm[{A[i], i}];
    for(int i = 0; i < q; ++i) VQ[i] = MNorm[{VQ[i], X[i]}];
    ma_val = Ord.size();
    init();
    for(int i = 0; i < n; ++i)
        update_active(A[i], 1);
    for(int i = 0; i < n; ++i)
        update_val(A[i], i - query_smaller(A[i]));
    vector<int> answer;
    for(int i = 0; i < q; ++i) {
        int poz = X[i], val = VQ[i];
        update_active(A[poz], 0);
        update_range(A[poz] + 1, ma_val, 1);
        A[poz] = val;
        update_active(A[poz], 1);
        update_val(A[poz], poz - query_smaller(A[poz]));
        update_range(A[poz] + 1, ma_val, -1);
        answer.push_back(V[1].ma);
    }
    return answer;
}

Compilation message

bubblesort2.cpp: In function 'int brute(std::vector<int>)':
bubblesort2.cpp:87:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   87 |         for(int i = 0; i < A.size() - 1; ++i)
      |                        ~~^~~~~~~~~~~~~~
bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:102:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |     for(int i = 0; i < Ord.size(); ++i) MNorm[Ord[i]] = i + 1;
      |                    ~~^~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 3 ms 468 KB Output is correct
3 Correct 8 ms 768 KB Output is correct
4 Correct 7 ms 672 KB Output is correct
5 Correct 7 ms 724 KB Output is correct
6 Correct 6 ms 724 KB Output is correct
7 Correct 6 ms 760 KB Output is correct
8 Correct 6 ms 724 KB Output is correct
9 Correct 5 ms 724 KB Output is correct
10 Correct 5 ms 724 KB Output is correct
11 Correct 5 ms 724 KB Output is correct
12 Correct 6 ms 748 KB Output is correct
13 Correct 6 ms 724 KB Output is correct
14 Correct 5 ms 732 KB Output is correct
15 Correct 8 ms 724 KB Output is correct
16 Correct 5 ms 724 KB Output is correct
17 Correct 6 ms 724 KB Output is correct
18 Correct 6 ms 724 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 3 ms 468 KB Output is correct
3 Correct 8 ms 768 KB Output is correct
4 Correct 7 ms 672 KB Output is correct
5 Correct 7 ms 724 KB Output is correct
6 Correct 6 ms 724 KB Output is correct
7 Correct 6 ms 760 KB Output is correct
8 Correct 6 ms 724 KB Output is correct
9 Correct 5 ms 724 KB Output is correct
10 Correct 5 ms 724 KB Output is correct
11 Correct 5 ms 724 KB Output is correct
12 Correct 6 ms 748 KB Output is correct
13 Correct 6 ms 724 KB Output is correct
14 Correct 5 ms 732 KB Output is correct
15 Correct 8 ms 724 KB Output is correct
16 Correct 5 ms 724 KB Output is correct
17 Correct 6 ms 724 KB Output is correct
18 Correct 6 ms 724 KB Output is correct
19 Correct 24 ms 2004 KB Output is correct
20 Correct 27 ms 2132 KB Output is correct
21 Correct 25 ms 2152 KB Output is correct
22 Correct 25 ms 2152 KB Output is correct
23 Correct 24 ms 2056 KB Output is correct
24 Correct 23 ms 2004 KB Output is correct
25 Correct 27 ms 1956 KB Output is correct
26 Correct 22 ms 2004 KB Output is correct
27 Correct 23 ms 1876 KB Output is correct
28 Correct 23 ms 1900 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 3672 KB Output is correct
2 Correct 110 ms 7692 KB Output is correct
3 Correct 205 ms 13068 KB Output is correct
4 Correct 230 ms 13104 KB Output is correct
5 Correct 185 ms 12864 KB Output is correct
6 Correct 197 ms 12840 KB Output is correct
7 Correct 203 ms 12868 KB Output is correct
8 Correct 189 ms 12844 KB Output is correct
9 Correct 211 ms 12832 KB Output is correct
10 Correct 199 ms 10136 KB Output is correct
11 Correct 165 ms 10176 KB Output is correct
12 Correct 167 ms 10116 KB Output is correct
13 Correct 160 ms 10296 KB Output is correct
14 Correct 159 ms 10208 KB Output is correct
15 Correct 163 ms 10136 KB Output is correct
16 Correct 154 ms 10180 KB Output is correct
17 Correct 151 ms 10236 KB Output is correct
18 Correct 156 ms 10152 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 3 ms 468 KB Output is correct
3 Correct 8 ms 768 KB Output is correct
4 Correct 7 ms 672 KB Output is correct
5 Correct 7 ms 724 KB Output is correct
6 Correct 6 ms 724 KB Output is correct
7 Correct 6 ms 760 KB Output is correct
8 Correct 6 ms 724 KB Output is correct
9 Correct 5 ms 724 KB Output is correct
10 Correct 5 ms 724 KB Output is correct
11 Correct 5 ms 724 KB Output is correct
12 Correct 6 ms 748 KB Output is correct
13 Correct 6 ms 724 KB Output is correct
14 Correct 5 ms 732 KB Output is correct
15 Correct 8 ms 724 KB Output is correct
16 Correct 5 ms 724 KB Output is correct
17 Correct 6 ms 724 KB Output is correct
18 Correct 6 ms 724 KB Output is correct
19 Correct 24 ms 2004 KB Output is correct
20 Correct 27 ms 2132 KB Output is correct
21 Correct 25 ms 2152 KB Output is correct
22 Correct 25 ms 2152 KB Output is correct
23 Correct 24 ms 2056 KB Output is correct
24 Correct 23 ms 2004 KB Output is correct
25 Correct 27 ms 1956 KB Output is correct
26 Correct 22 ms 2004 KB Output is correct
27 Correct 23 ms 1876 KB Output is correct
28 Correct 23 ms 1900 KB Output is correct
29 Correct 42 ms 3672 KB Output is correct
30 Correct 110 ms 7692 KB Output is correct
31 Correct 205 ms 13068 KB Output is correct
32 Correct 230 ms 13104 KB Output is correct
33 Correct 185 ms 12864 KB Output is correct
34 Correct 197 ms 12840 KB Output is correct
35 Correct 203 ms 12868 KB Output is correct
36 Correct 189 ms 12844 KB Output is correct
37 Correct 211 ms 12832 KB Output is correct
38 Correct 199 ms 10136 KB Output is correct
39 Correct 165 ms 10176 KB Output is correct
40 Correct 167 ms 10116 KB Output is correct
41 Correct 160 ms 10296 KB Output is correct
42 Correct 159 ms 10208 KB Output is correct
43 Correct 163 ms 10136 KB Output is correct
44 Correct 154 ms 10180 KB Output is correct
45 Correct 151 ms 10236 KB Output is correct
46 Correct 156 ms 10152 KB Output is correct
47 Correct 852 ms 42700 KB Output is correct
48 Correct 3315 ms 112188 KB Output is correct
49 Correct 3679 ms 132196 KB Output is correct
50 Correct 3675 ms 132152 KB Output is correct
51 Correct 3694 ms 132140 KB Output is correct
52 Correct 3938 ms 132204 KB Output is correct
53 Correct 3970 ms 132200 KB Output is correct
54 Correct 3453 ms 132372 KB Output is correct
55 Correct 3841 ms 132308 KB Output is correct
56 Correct 3454 ms 132208 KB Output is correct
57 Correct 3301 ms 132320 KB Output is correct
58 Correct 3086 ms 132284 KB Output is correct
59 Correct 2893 ms 123300 KB Output is correct
60 Correct 2854 ms 123144 KB Output is correct
61 Correct 2852 ms 123128 KB Output is correct
62 Correct 2772 ms 119180 KB Output is correct
63 Correct 2795 ms 119172 KB Output is correct
64 Correct 2926 ms 119276 KB Output is correct
65 Correct 2720 ms 115088 KB Output is correct
66 Correct 2733 ms 115136 KB Output is correct
67 Correct 2723 ms 115116 KB Output is correct