oj.uz

Submission #867422

# Submission time Handle Problem Language Result Execution time Memory
867422 2023-10-28T11:10:55 Z lolismek Arranging Shoes (IOI19_shoes) C++14
100 / 100
 42 ms 12888 KB 
#include "shoes.h"
#include <queue>
#include <cassert>

#define pii pair <int, int>

using namespace std;

const int NMAX = 2e5 + 10;

namespace AIB{
    int n;
    int aib[NMAX + 1];

    void init(int _n){
        n = _n;
        for(int i = 0; i <= n; i++){
            aib[i] = 0;
        }
    }

    int lsb(int x){
        return x & -x;
    }

    void update(int pos, int val){
        pos += 1;

        for(int i = pos; i <= n; i += lsb(i)){
            aib[i] += val;
        }
    }

    int query(int pos){
        pos += 1;

        int ans = 0;
        for(int i = pos; i >= 1; i -= lsb(i)){
            ans += aib[i];
        }
        return ans;
    }
}

vector <int> pos[NMAX + 1];
int par[NMAX + 1];
bool viz[NMAX + 1];

long long count_swaps(vector<int> s){
    int n = (int)s.size();

    for(int i = 0; i < n; i++){
        pos[(s[i] < 0 ? -s[i] : s[i])].push_back(i);
    }

    for(int col = 1; col <= n; col++){
        queue <pii> St;
        for(int j = 0; j < (int)pos[col].size(); j++){
            int i = pos[col][j];
            if(!St.empty() && St.front().first == -s[i]){
                par[i] = St.front().second;
                par[St.front().second] = i;
                St.pop();
            }else{
                St.push({s[i], i});
            }
        }
    }

    AIB::init(n);
    for(int i = 0; i < n; i++){
        AIB::update(i, +1);
    }

    long long ans = 0;

    for(int i = 0; i < n; i++){
        if(!viz[i]){
            viz[i] = viz[par[i]] = true;
            AIB::update(i, -1);
            AIB::update(par[i], -1);
            ans += AIB::query(par[i]) - AIB::query(i) + (s[i] > s[par[i]]);
        }
    }

    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4956 KB Output is correct
13 Correct 1 ms 4956 KB Output is correct
14 Correct 1 ms 4956 KB Output is correct
15 Correct 1 ms 4956 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Correct 1 ms 4956 KB Output is correct
20 Correct 1 ms 4956 KB Output is correct
21 Correct 1 ms 4956 KB Output is correct
22 Correct 1 ms 4956 KB Output is correct
23 Correct 1 ms 4956 KB Output is correct
24 Correct 1 ms 4956 KB Output is correct
25 Correct 1 ms 4956 KB Output is correct
26 Correct 1 ms 4956 KB Output is correct
27 Correct 1 ms 4956 KB Output is correct
28 Correct 1 ms 4956 KB Output is correct
29 Correct 1 ms 5088 KB Output is correct
30 Correct 1 ms 5084 KB Output is correct
31 Correct 1 ms 4956 KB Output is correct
32 Correct 1 ms 4956 KB Output is correct
33 Correct 1 ms 4956 KB Output is correct
34 Correct 1 ms 4956 KB Output is correct
35 Correct 1 ms 4956 KB Output is correct
36 Correct 1 ms 4956 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4952 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4952 KB Output is correct
13 Correct 1 ms 4952 KB Output is correct
14 Correct 1 ms 4956 KB Output is correct
15 Correct 1 ms 4956 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 1 ms 4952 KB Output is correct
18 Correct 1 ms 4952 KB Output is correct
19 Correct 2 ms 4952 KB Output is correct
20 Correct 4 ms 5468 KB Output is correct
21 Correct 5 ms 5468 KB Output is correct
22 Correct 32 ms 9180 KB Output is correct
23 Correct 28 ms 10480 KB Output is correct
24 Correct 32 ms 10376 KB Output is correct
25 Correct 30 ms 10952 KB Output is correct
26 Correct 33 ms 10440 KB Output is correct
27 Correct 28 ms 10248 KB Output is correct
28 Correct 31 ms 11212 KB Output is correct
29 Correct 30 ms 11204 KB Output is correct
30 Correct 30 ms 11216 KB Output is correct
31 Correct 32 ms 10448 KB Output is correct
32 Correct 30 ms 11144 KB Output is correct
33 Correct 30 ms 10956 KB Output is correct
34 Correct 31 ms 11464 KB Output is correct
35 Correct 2 ms 5136 KB Output is correct
36 Correct 1 ms 5136 KB Output is correct
37 Correct 30 ms 11140 KB Output is correct
38 Correct 31 ms 11208 KB Output is correct
39 Correct 30 ms 11208 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 41 ms 11368 KB Output is correct
6 Correct 36 ms 10860 KB Output is correct
7 Correct 42 ms 12564 KB Output is correct
8 Correct 30 ms 10768 KB Output is correct
9 Correct 40 ms 12648 KB Output is correct
10 Correct 40 ms 11536 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4956 KB Output is correct
13 Correct 1 ms 4956 KB Output is correct
14 Correct 1 ms 4956 KB Output is correct
15 Correct 1 ms 4956 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Correct 1 ms 4956 KB Output is correct
20 Correct 1 ms 4956 KB Output is correct
21 Correct 1 ms 4956 KB Output is correct
22 Correct 1 ms 4956 KB Output is correct
23 Correct 1 ms 4956 KB Output is correct
24 Correct 1 ms 4956 KB Output is correct
25 Correct 1 ms 4956 KB Output is correct
26 Correct 1 ms 4956 KB Output is correct
27 Correct 1 ms 4956 KB Output is correct
28 Correct 1 ms 4956 KB Output is correct
29 Correct 1 ms 5088 KB Output is correct
30 Correct 1 ms 5084 KB Output is correct
31 Correct 1 ms 4956 KB Output is correct
32 Correct 1 ms 4956 KB Output is correct
33 Correct 1 ms 4956 KB Output is correct
34 Correct 1 ms 4956 KB Output is correct
35 Correct 1 ms 4956 KB Output is correct
36 Correct 1 ms 4956 KB Output is correct
37 Correct 1 ms 4952 KB Output is correct
38 Correct 1 ms 4956 KB Output is correct
39 Correct 1 ms 4956 KB Output is correct
40 Correct 1 ms 4956 KB Output is correct
41 Correct 1 ms 4956 KB Output is correct
42 Correct 1 ms 4952 KB Output is correct
43 Correct 1 ms 4952 KB Output is correct
44 Correct 1 ms 4956 KB Output is correct
45 Correct 1 ms 4956 KB Output is correct
46 Correct 1 ms 4956 KB Output is correct
47 Correct 1 ms 4956 KB Output is correct
48 Correct 1 ms 4952 KB Output is correct
49 Correct 1 ms 4956 KB Output is correct
50 Correct 1 ms 4956 KB Output is correct
51 Correct 1 ms 4956 KB Output is correct
52 Correct 1 ms 4956 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4956 KB Output is correct
13 Correct 1 ms 4956 KB Output is correct
14 Correct 1 ms 4956 KB Output is correct
15 Correct 1 ms 4956 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Correct 1 ms 4956 KB Output is correct
20 Correct 1 ms 4956 KB Output is correct
21 Correct 1 ms 4956 KB Output is correct
22 Correct 1 ms 4956 KB Output is correct
23 Correct 1 ms 4956 KB Output is correct
24 Correct 1 ms 4956 KB Output is correct
25 Correct 1 ms 4956 KB Output is correct
26 Correct 1 ms 4956 KB Output is correct
27 Correct 1 ms 4956 KB Output is correct
28 Correct 1 ms 4956 KB Output is correct
29 Correct 1 ms 5088 KB Output is correct
30 Correct 1 ms 5084 KB Output is correct
31 Correct 1 ms 4956 KB Output is correct
32 Correct 1 ms 4956 KB Output is correct
33 Correct 1 ms 4956 KB Output is correct
34 Correct 1 ms 4956 KB Output is correct
35 Correct 1 ms 4956 KB Output is correct
36 Correct 1 ms 4956 KB Output is correct
37 Correct 1 ms 4956 KB Output is correct
38 Correct 1 ms 4952 KB Output is correct
39 Correct 1 ms 4956 KB Output is correct
40 Correct 1 ms 4956 KB Output is correct
41 Correct 1 ms 4956 KB Output is correct
42 Correct 1 ms 4956 KB Output is correct
43 Correct 1 ms 4956 KB Output is correct
44 Correct 1 ms 4956 KB Output is correct
45 Correct 1 ms 4956 KB Output is correct
46 Correct 1 ms 4952 KB Output is correct
47 Correct 1 ms 4952 KB Output is correct
48 Correct 1 ms 4956 KB Output is correct
49 Correct 1 ms 4956 KB Output is correct
50 Correct 1 ms 4956 KB Output is correct
51 Correct 1 ms 4952 KB Output is correct
52 Correct 1 ms 4952 KB Output is correct
53 Correct 2 ms 4952 KB Output is correct
54 Correct 4 ms 5468 KB Output is correct
55 Correct 5 ms 5468 KB Output is correct
56 Correct 32 ms 9180 KB Output is correct
57 Correct 28 ms 10480 KB Output is correct
58 Correct 32 ms 10376 KB Output is correct
59 Correct 30 ms 10952 KB Output is correct
60 Correct 33 ms 10440 KB Output is correct
61 Correct 28 ms 10248 KB Output is correct
62 Correct 31 ms 11212 KB Output is correct
63 Correct 30 ms 11204 KB Output is correct
64 Correct 30 ms 11216 KB Output is correct
65 Correct 32 ms 10448 KB Output is correct
66 Correct 30 ms 11144 KB Output is correct
67 Correct 30 ms 10956 KB Output is correct
68 Correct 31 ms 11464 KB Output is correct
69 Correct 2 ms 5136 KB Output is correct
70 Correct 1 ms 5136 KB Output is correct
71 Correct 30 ms 11140 KB Output is correct
72 Correct 31 ms 11208 KB Output is correct
73 Correct 30 ms 11208 KB Output is correct
74 Correct 1 ms 4952 KB Output is correct
75 Correct 1 ms 4956 KB Output is correct
76 Correct 1 ms 4956 KB Output is correct
77 Correct 1 ms 4956 KB Output is correct
78 Correct 41 ms 11368 KB Output is correct
79 Correct 36 ms 10860 KB Output is correct
80 Correct 42 ms 12564 KB Output is correct
81 Correct 30 ms 10768 KB Output is correct
82 Correct 40 ms 12648 KB Output is correct
83 Correct 40 ms 11536 KB Output is correct
84 Correct 1 ms 4952 KB Output is correct
85 Correct 1 ms 4956 KB Output is correct
86 Correct 1 ms 4956 KB Output is correct
87 Correct 1 ms 4956 KB Output is correct
88 Correct 1 ms 4956 KB Output is correct
89 Correct 1 ms 4952 KB Output is correct
90 Correct 1 ms 4952 KB Output is correct
91 Correct 1 ms 4956 KB Output is correct
92 Correct 1 ms 4956 KB Output is correct
93 Correct 1 ms 4956 KB Output is correct
94 Correct 1 ms 4956 KB Output is correct
95 Correct 1 ms 4952 KB Output is correct
96 Correct 1 ms 4956 KB Output is correct
97 Correct 1 ms 4956 KB Output is correct
98 Correct 1 ms 4956 KB Output is correct
99 Correct 1 ms 4956 KB Output is correct
100 Correct 1 ms 4956 KB Output is correct
101 Correct 5 ms 5584 KB Output is correct
102 Correct 6 ms 5724 KB Output is correct
103 Correct 41 ms 12624 KB Output is correct
104 Correct 37 ms 12880 KB Output is correct
105 Correct 40 ms 11604 KB Output is correct
106 Correct 38 ms 12628 KB Output is correct
107 Correct 35 ms 10844 KB Output is correct
108 Correct 32 ms 11088 KB Output is correct
109 Correct 35 ms 11212 KB Output is correct
110 Correct 30 ms 11216 KB Output is correct
111 Correct 40 ms 12372 KB Output is correct
112 Correct 41 ms 12112 KB Output is correct
113 Correct 35 ms 11012 KB Output is correct
114 Correct 38 ms 12584 KB Output is correct
115 Correct 40 ms 12888 KB Output is correct