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Submission #723927

# Submission time Handle Problem Language Result Execution time Memory
723927 2023-04-14T13:13:26 Z adrilen Arranging Shoes (IOI19_shoes) C++17
100 / 100
 117 ms 22216 KB 
#include "shoes.h"
#include<bits/stdc++.h>

using namespace std;
using ll = long long;

constexpr int maxn = 2e5, bits = 18, siz = 1 << bits;

int segtree[siz * 2] = { 0 };

void update(int p)
{
    while (p > 0)
    {
        segtree[p]++;
        p /= 2;
    }
}

ll query(int pos, int l, int r, int gl, int gr)
{
    if (l > gr || gl > r) return 0;
    if (gl <= l && r <= gr) return segtree[pos];

    int mid = (l + r) >> 1;
    return query(pos * 2, l, mid, gl, gr) + query(pos * 2 + 1, mid + 1, r, gl, gr);
}


int n;

// Shoe types
set <int> shoes[maxn / 2 + 5][2];

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

    ll output = 0;

    for (int i = 0; i < n; i++)
    {
        if (s[i] > 0) shoes[s[i]][1].insert(i); // Right
        else shoes[abs(s[i])][0].insert(i);          // Left
    }

    ll typ, next_pair;
    for (ll i = 0; i < n; i++)
    {
        if (segtree[i + siz]) continue;

        typ = (s[i] > 0);
        shoes[abs(s[i])][typ].erase(i);
        next_pair = *shoes[abs(s[i])][(typ + 1) & 1].begin();
        shoes[abs(s[i])][(typ + 1) & 1].erase(next_pair);


        // cout << i << " " << next_pair << " " << output << " ";
        // cout << query(1, 0, siz - 1, i, next_pair) << "\n";
        output += next_pair - i - query(1, 0, siz - 1, i, next_pair) + typ - 1;

        // update(i + siz);
        update(next_pair + siz);
    }

    return output;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 5 ms 9684 KB Output is correct
11 Correct 5 ms 9684 KB Output is correct
12 Correct 5 ms 9680 KB Output is correct
13 Correct 5 ms 9624 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 7 ms 9684 KB Output is correct
17 Correct 5 ms 9684 KB Output is correct
18 Correct 5 ms 9684 KB Output is correct
19 Correct 5 ms 9740 KB Output is correct
20 Correct 5 ms 9684 KB Output is correct
21 Correct 5 ms 9684 KB Output is correct
22 Correct 4 ms 9684 KB Output is correct
23 Correct 5 ms 9684 KB Output is correct
24 Correct 6 ms 9620 KB Output is correct
25 Correct 5 ms 9684 KB Output is correct
26 Correct 5 ms 9684 KB Output is correct
27 Correct 5 ms 9684 KB Output is correct
28 Correct 5 ms 9684 KB Output is correct
29 Correct 5 ms 9684 KB Output is correct
30 Correct 5 ms 9684 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 5 ms 9692 KB Output is correct
33 Correct 5 ms 9684 KB Output is correct
34 Correct 5 ms 9656 KB Output is correct
35 Correct 5 ms 9684 KB Output is correct
36 Correct 5 ms 9684 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 6 ms 9684 KB Output is correct
11 Correct 5 ms 9684 KB Output is correct
12 Correct 5 ms 9684 KB Output is correct
13 Correct 5 ms 9644 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 5 ms 9684 KB Output is correct
17 Correct 5 ms 9684 KB Output is correct
18 Correct 6 ms 9812 KB Output is correct
19 Correct 6 ms 9812 KB Output is correct
20 Correct 13 ms 10964 KB Output is correct
21 Correct 12 ms 10964 KB Output is correct
22 Correct 79 ms 22204 KB Output is correct
23 Correct 91 ms 22216 KB Output is correct
24 Correct 81 ms 22140 KB Output is correct
25 Correct 92 ms 21448 KB Output is correct
26 Correct 86 ms 22212 KB Output is correct
27 Correct 87 ms 22188 KB Output is correct
28 Correct 92 ms 21424 KB Output is correct
29 Correct 95 ms 21368 KB Output is correct
30 Correct 96 ms 21440 KB Output is correct
31 Correct 90 ms 22124 KB Output is correct
32 Correct 97 ms 21452 KB Output is correct
33 Correct 96 ms 21460 KB Output is correct
34 Correct 98 ms 21512 KB Output is correct
35 Correct 6 ms 9684 KB Output is correct
36 Correct 6 ms 9684 KB Output is correct
37 Correct 101 ms 21388 KB Output is correct
38 Correct 100 ms 21428 KB Output is correct
39 Correct 92 ms 21372 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9720 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 80 ms 21452 KB Output is correct
6 Correct 100 ms 21416 KB Output is correct
7 Correct 81 ms 21360 KB Output is correct
8 Correct 82 ms 21472 KB Output is correct
9 Correct 81 ms 21396 KB Output is correct
10 Correct 93 ms 21372 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 5 ms 9684 KB Output is correct
11 Correct 5 ms 9684 KB Output is correct
12 Correct 5 ms 9680 KB Output is correct
13 Correct 5 ms 9624 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 7 ms 9684 KB Output is correct
17 Correct 5 ms 9684 KB Output is correct
18 Correct 5 ms 9684 KB Output is correct
19 Correct 5 ms 9740 KB Output is correct
20 Correct 5 ms 9684 KB Output is correct
21 Correct 5 ms 9684 KB Output is correct
22 Correct 4 ms 9684 KB Output is correct
23 Correct 5 ms 9684 KB Output is correct
24 Correct 6 ms 9620 KB Output is correct
25 Correct 5 ms 9684 KB Output is correct
26 Correct 5 ms 9684 KB Output is correct
27 Correct 5 ms 9684 KB Output is correct
28 Correct 5 ms 9684 KB Output is correct
29 Correct 5 ms 9684 KB Output is correct
30 Correct 5 ms 9684 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 5 ms 9692 KB Output is correct
33 Correct 5 ms 9684 KB Output is correct
34 Correct 5 ms 9656 KB Output is correct
35 Correct 5 ms 9684 KB Output is correct
36 Correct 5 ms 9684 KB Output is correct
37 Correct 5 ms 9684 KB Output is correct
38 Correct 5 ms 9684 KB Output is correct
39 Correct 5 ms 9684 KB Output is correct
40 Correct 5 ms 9684 KB Output is correct
41 Correct 5 ms 9812 KB Output is correct
42 Correct 6 ms 9732 KB Output is correct
43 Correct 5 ms 9812 KB Output is correct
44 Correct 6 ms 9812 KB Output is correct
45 Correct 6 ms 9812 KB Output is correct
46 Correct 6 ms 9812 KB Output is correct
47 Correct 5 ms 9812 KB Output is correct
48 Correct 6 ms 9736 KB Output is correct
49 Correct 6 ms 9812 KB Output is correct
50 Correct 6 ms 9812 KB Output is correct
51 Correct 6 ms 9812 KB Output is correct
52 Correct 6 ms 9812 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 5 ms 9684 KB Output is correct
11 Correct 5 ms 9684 KB Output is correct
12 Correct 5 ms 9680 KB Output is correct
13 Correct 5 ms 9624 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 7 ms 9684 KB Output is correct
17 Correct 5 ms 9684 KB Output is correct
18 Correct 5 ms 9684 KB Output is correct
19 Correct 5 ms 9740 KB Output is correct
20 Correct 5 ms 9684 KB Output is correct
21 Correct 5 ms 9684 KB Output is correct
22 Correct 4 ms 9684 KB Output is correct
23 Correct 5 ms 9684 KB Output is correct
24 Correct 6 ms 9620 KB Output is correct
25 Correct 5 ms 9684 KB Output is correct
26 Correct 5 ms 9684 KB Output is correct
27 Correct 5 ms 9684 KB Output is correct
28 Correct 5 ms 9684 KB Output is correct
29 Correct 5 ms 9684 KB Output is correct
30 Correct 5 ms 9684 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 5 ms 9692 KB Output is correct
33 Correct 5 ms 9684 KB Output is correct
34 Correct 5 ms 9656 KB Output is correct
35 Correct 5 ms 9684 KB Output is correct
36 Correct 5 ms 9684 KB Output is correct
37 Correct 5 ms 9684 KB Output is correct
38 Correct 5 ms 9684 KB Output is correct
39 Correct 5 ms 9684 KB Output is correct
40 Correct 5 ms 9684 KB Output is correct
41 Correct 5 ms 9684 KB Output is correct
42 Correct 5 ms 9684 KB Output is correct
43 Correct 5 ms 9684 KB Output is correct
44 Correct 6 ms 9684 KB Output is correct
45 Correct 5 ms 9684 KB Output is correct
46 Correct 5 ms 9684 KB Output is correct
47 Correct 5 ms 9644 KB Output is correct
48 Correct 5 ms 9684 KB Output is correct
49 Correct 5 ms 9684 KB Output is correct
50 Correct 5 ms 9684 KB Output is correct
51 Correct 5 ms 9684 KB Output is correct
52 Correct 6 ms 9812 KB Output is correct
53 Correct 6 ms 9812 KB Output is correct
54 Correct 13 ms 10964 KB Output is correct
55 Correct 12 ms 10964 KB Output is correct
56 Correct 79 ms 22204 KB Output is correct
57 Correct 91 ms 22216 KB Output is correct
58 Correct 81 ms 22140 KB Output is correct
59 Correct 92 ms 21448 KB Output is correct
60 Correct 86 ms 22212 KB Output is correct
61 Correct 87 ms 22188 KB Output is correct
62 Correct 92 ms 21424 KB Output is correct
63 Correct 95 ms 21368 KB Output is correct
64 Correct 96 ms 21440 KB Output is correct
65 Correct 90 ms 22124 KB Output is correct
66 Correct 97 ms 21452 KB Output is correct
67 Correct 96 ms 21460 KB Output is correct
68 Correct 98 ms 21512 KB Output is correct
69 Correct 6 ms 9684 KB Output is correct
70 Correct 6 ms 9684 KB Output is correct
71 Correct 101 ms 21388 KB Output is correct
72 Correct 100 ms 21428 KB Output is correct
73 Correct 92 ms 21372 KB Output is correct
74 Correct 4 ms 9684 KB Output is correct
75 Correct 5 ms 9684 KB Output is correct
76 Correct 5 ms 9720 KB Output is correct
77 Correct 5 ms 9684 KB Output is correct
78 Correct 80 ms 21452 KB Output is correct
79 Correct 100 ms 21416 KB Output is correct
80 Correct 81 ms 21360 KB Output is correct
81 Correct 82 ms 21472 KB Output is correct
82 Correct 81 ms 21396 KB Output is correct
83 Correct 93 ms 21372 KB Output is correct
84 Correct 5 ms 9684 KB Output is correct
85 Correct 5 ms 9684 KB Output is correct
86 Correct 5 ms 9684 KB Output is correct
87 Correct 5 ms 9684 KB Output is correct
88 Correct 5 ms 9812 KB Output is correct
89 Correct 6 ms 9732 KB Output is correct
90 Correct 5 ms 9812 KB Output is correct
91 Correct 6 ms 9812 KB Output is correct
92 Correct 6 ms 9812 KB Output is correct
93 Correct 6 ms 9812 KB Output is correct
94 Correct 5 ms 9812 KB Output is correct
95 Correct 6 ms 9736 KB Output is correct
96 Correct 6 ms 9812 KB Output is correct
97 Correct 6 ms 9812 KB Output is correct
98 Correct 6 ms 9812 KB Output is correct
99 Correct 6 ms 9812 KB Output is correct
100 Correct 6 ms 9812 KB Output is correct
101 Correct 16 ms 10964 KB Output is correct
102 Correct 13 ms 10964 KB Output is correct
103 Correct 102 ms 22132 KB Output is correct
104 Correct 69 ms 22188 KB Output is correct
105 Correct 100 ms 22216 KB Output is correct
106 Correct 83 ms 21340 KB Output is correct
107 Correct 100 ms 22184 KB Output is correct
108 Correct 91 ms 22132 KB Output is correct
109 Correct 83 ms 21452 KB Output is correct
110 Correct 92 ms 21452 KB Output is correct
111 Correct 83 ms 21368 KB Output is correct
112 Correct 98 ms 22144 KB Output is correct
113 Correct 117 ms 21408 KB Output is correct
114 Correct 78 ms 21396 KB Output is correct
115 Correct 80 ms 21460 KB Output is correct