oj.uz

Submission #643668

# Submission time Handle Problem Language Result Execution time Memory
643668 2022-09-22T18:09:47 Z _petar_b Arranging Shoes (IOI19_shoes) C++14
50 / 100
 147 ms 141600 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#define MAXN 200010
#define DELTA 100001
#define pb push_back
#define ll long long
#define fi first
#define se second
#define mp make_pair

using namespace std;

int n, t[4*MAXN], par[MAXN], tleaf[MAXN];
queue<int> posOf[MAXN];

void build(int v, int tl, int tr)
{
    if (tl == tr)
        t[v] = 1;
    else
    {
        int tm = (tl + tr) / 2;
        build(v*2, tl, tm);
        build(v*2+1, tm+1, tr);
        t[v] = t[v*2] + t[v*2+1];
    }
}

int sum(int v, int tl, int tr, int l, int r)
{
    if (l > r)
        return 0;
    if (l == tl && r == tr)
        return t[v];
    int tm = (tl + tr) / 2;
    return sum(v*2, tl, tm, l, min(r, tm)) + sum(v*2+1, tm+1, tr, max(l, tm+1), r);
}

void update(int v, int tl, int tr, int pos)
{
    if (tl == tr)
        t[v] = 0;
    else
    {
        int tm = (tl + tr) / 2;
        if (pos <= tm)
            update(v*2, tl, tm, pos);
        else
            update(v*2+1, tm+1, tr, pos);
        t[v] = t[v*2] + t[v*2+1];
    }
}

long long count_swaps(std::vector<int> s)
{
    n = s.size();
    for (int i = 0; i < n; i++)
    {
        tleaf[i] = 1;
        int other = DELTA - s[i];
        if (!posOf[other].empty())
        {
            par[i] = posOf[other].front();
            posOf[other].pop();
        }
        else
        {
            par[i] = -1;
            posOf[s[i]+DELTA].push(i);
        }
    }
    build(1, 0, n-1);
    int res = 0;
    for (int i = n-1; i >= 0; i--)
    {
        if (tleaf[i] == 1)
        {
            res += sum(1, 0, n-1, par[i]+1, i-1);
            tleaf[par[i]] = 0;
            update(1, 0, n-1, par[i]);
            if (s[i] < 0) res++;
        }
    }
    return res;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 134936 KB Output is correct
2 Correct 98 ms 134904 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 134936 KB Output is correct
2 Correct 98 ms 134904 KB Output is correct
3 Correct 86 ms 134860 KB Output is correct
4 Correct 86 ms 134856 KB Output is correct
5 Correct 92 ms 134860 KB Output is correct
6 Correct 94 ms 134856 KB Output is correct
7 Correct 85 ms 134916 KB Output is correct
8 Correct 89 ms 134908 KB Output is correct
9 Correct 95 ms 134856 KB Output is correct
10 Correct 88 ms 134848 KB Output is correct
11 Correct 93 ms 134852 KB Output is correct
12 Correct 89 ms 134868 KB Output is correct
13 Correct 90 ms 134860 KB Output is correct
14 Correct 86 ms 135004 KB Output is correct
15 Correct 85 ms 134880 KB Output is correct
16 Correct 83 ms 134832 KB Output is correct
17 Correct 93 ms 134940 KB Output is correct
18 Correct 95 ms 134848 KB Output is correct
19 Correct 92 ms 134860 KB Output is correct
20 Correct 79 ms 134860 KB Output is correct
21 Correct 77 ms 134856 KB Output is correct
22 Correct 78 ms 134836 KB Output is correct
23 Correct 80 ms 134936 KB Output is correct
24 Correct 92 ms 134948 KB Output is correct
25 Correct 81 ms 134936 KB Output is correct
26 Correct 86 ms 134828 KB Output is correct
27 Correct 81 ms 134932 KB Output is correct
28 Correct 79 ms 134860 KB Output is correct
29 Correct 99 ms 134884 KB Output is correct
30 Correct 89 ms 134844 KB Output is correct
31 Correct 81 ms 134832 KB Output is correct
32 Correct 79 ms 134932 KB Output is correct
33 Correct 80 ms 134872 KB Output is correct
34 Correct 79 ms 134932 KB Output is correct
35 Correct 88 ms 134844 KB Output is correct
36 Correct 82 ms 134940 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 134936 KB Output is correct
2 Correct 98 ms 134904 KB Output is correct
3 Correct 79 ms 134896 KB Output is correct
4 Correct 84 ms 134860 KB Output is correct
5 Correct 83 ms 134832 KB Output is correct
6 Correct 97 ms 134936 KB Output is correct
7 Correct 79 ms 134928 KB Output is correct
8 Correct 78 ms 134852 KB Output is correct
9 Correct 79 ms 134900 KB Output is correct
10 Correct 79 ms 134932 KB Output is correct
11 Correct 79 ms 134920 KB Output is correct
12 Correct 82 ms 134992 KB Output is correct
13 Correct 81 ms 134872 KB Output is correct
14 Correct 83 ms 134936 KB Output is correct
15 Correct 80 ms 134860 KB Output is correct
16 Correct 76 ms 134836 KB Output is correct
17 Correct 80 ms 134940 KB Output is correct
18 Correct 86 ms 134992 KB Output is correct
19 Correct 81 ms 134936 KB Output is correct
20 Correct 83 ms 135504 KB Output is correct
21 Correct 87 ms 135620 KB Output is correct
22 Correct 136 ms 141452 KB Output is correct
23 Correct 111 ms 141312 KB Output is correct
24 Correct 125 ms 141352 KB Output is correct
25 Incorrect 142 ms 141600 KB Output isn't correct
26 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 134860 KB Output is correct
2 Correct 80 ms 134928 KB Output is correct
3 Correct 78 ms 134924 KB Output is correct
4 Correct 81 ms 134908 KB Output is correct
5 Incorrect 147 ms 141304 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 134936 KB Output is correct
2 Correct 98 ms 134904 KB Output is correct
3 Correct 86 ms 134860 KB Output is correct
4 Correct 86 ms 134856 KB Output is correct
5 Correct 92 ms 134860 KB Output is correct
6 Correct 94 ms 134856 KB Output is correct
7 Correct 85 ms 134916 KB Output is correct
8 Correct 89 ms 134908 KB Output is correct
9 Correct 95 ms 134856 KB Output is correct
10 Correct 88 ms 134848 KB Output is correct
11 Correct 93 ms 134852 KB Output is correct
12 Correct 89 ms 134868 KB Output is correct
13 Correct 90 ms 134860 KB Output is correct
14 Correct 86 ms 135004 KB Output is correct
15 Correct 85 ms 134880 KB Output is correct
16 Correct 83 ms 134832 KB Output is correct
17 Correct 93 ms 134940 KB Output is correct
18 Correct 95 ms 134848 KB Output is correct
19 Correct 92 ms 134860 KB Output is correct
20 Correct 79 ms 134860 KB Output is correct
21 Correct 77 ms 134856 KB Output is correct
22 Correct 78 ms 134836 KB Output is correct
23 Correct 80 ms 134936 KB Output is correct
24 Correct 92 ms 134948 KB Output is correct
25 Correct 81 ms 134936 KB Output is correct
26 Correct 86 ms 134828 KB Output is correct
27 Correct 81 ms 134932 KB Output is correct
28 Correct 79 ms 134860 KB Output is correct
29 Correct 99 ms 134884 KB Output is correct
30 Correct 89 ms 134844 KB Output is correct
31 Correct 81 ms 134832 KB Output is correct
32 Correct 79 ms 134932 KB Output is correct
33 Correct 80 ms 134872 KB Output is correct
34 Correct 79 ms 134932 KB Output is correct
35 Correct 88 ms 134844 KB Output is correct
36 Correct 82 ms 134940 KB Output is correct
37 Correct 79 ms 134884 KB Output is correct
38 Correct 87 ms 134936 KB Output is correct
39 Correct 87 ms 134872 KB Output is correct
40 Correct 79 ms 134932 KB Output is correct
41 Correct 78 ms 134892 KB Output is correct
42 Correct 81 ms 134980 KB Output is correct
43 Correct 89 ms 135028 KB Output is correct
44 Correct 81 ms 134944 KB Output is correct
45 Correct 83 ms 134980 KB Output is correct
46 Correct 78 ms 134968 KB Output is correct
47 Correct 83 ms 134952 KB Output is correct
48 Correct 79 ms 134884 KB Output is correct
49 Correct 81 ms 134964 KB Output is correct
50 Correct 83 ms 134984 KB Output is correct
51 Correct 81 ms 134960 KB Output is correct
52 Correct 81 ms 134940 KB Output is correct

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 134936 KB Output is correct
2 Correct 98 ms 134904 KB Output is correct
3 Correct 86 ms 134860 KB Output is correct
4 Correct 86 ms 134856 KB Output is correct
5 Correct 92 ms 134860 KB Output is correct
6 Correct 94 ms 134856 KB Output is correct
7 Correct 85 ms 134916 KB Output is correct
8 Correct 89 ms 134908 KB Output is correct
9 Correct 95 ms 134856 KB Output is correct
10 Correct 88 ms 134848 KB Output is correct
11 Correct 93 ms 134852 KB Output is correct
12 Correct 89 ms 134868 KB Output is correct
13 Correct 90 ms 134860 KB Output is correct
14 Correct 86 ms 135004 KB Output is correct
15 Correct 85 ms 134880 KB Output is correct
16 Correct 83 ms 134832 KB Output is correct
17 Correct 93 ms 134940 KB Output is correct
18 Correct 95 ms 134848 KB Output is correct
19 Correct 92 ms 134860 KB Output is correct
20 Correct 79 ms 134860 KB Output is correct
21 Correct 77 ms 134856 KB Output is correct
22 Correct 78 ms 134836 KB Output is correct
23 Correct 80 ms 134936 KB Output is correct
24 Correct 92 ms 134948 KB Output is correct
25 Correct 81 ms 134936 KB Output is correct
26 Correct 86 ms 134828 KB Output is correct
27 Correct 81 ms 134932 KB Output is correct
28 Correct 79 ms 134860 KB Output is correct
29 Correct 99 ms 134884 KB Output is correct
30 Correct 89 ms 134844 KB Output is correct
31 Correct 81 ms 134832 KB Output is correct
32 Correct 79 ms 134932 KB Output is correct
33 Correct 80 ms 134872 KB Output is correct
34 Correct 79 ms 134932 KB Output is correct
35 Correct 88 ms 134844 KB Output is correct
36 Correct 82 ms 134940 KB Output is correct
37 Correct 79 ms 134896 KB Output is correct
38 Correct 84 ms 134860 KB Output is correct
39 Correct 83 ms 134832 KB Output is correct
40 Correct 97 ms 134936 KB Output is correct
41 Correct 79 ms 134928 KB Output is correct
42 Correct 78 ms 134852 KB Output is correct
43 Correct 79 ms 134900 KB Output is correct
44 Correct 79 ms 134932 KB Output is correct
45 Correct 79 ms 134920 KB Output is correct
46 Correct 82 ms 134992 KB Output is correct
47 Correct 81 ms 134872 KB Output is correct
48 Correct 83 ms 134936 KB Output is correct
49 Correct 80 ms 134860 KB Output is correct
50 Correct 76 ms 134836 KB Output is correct
51 Correct 80 ms 134940 KB Output is correct
52 Correct 86 ms 134992 KB Output is correct
53 Correct 81 ms 134936 KB Output is correct
54 Correct 83 ms 135504 KB Output is correct
55 Correct 87 ms 135620 KB Output is correct
56 Correct 136 ms 141452 KB Output is correct
57 Correct 111 ms 141312 KB Output is correct
58 Correct 125 ms 141352 KB Output is correct
59 Incorrect 142 ms 141600 KB Output isn't correct
60 Halted 0 ms 0 KB -