oj.uz

Submission #978018

# Submission time Handle Problem Language Result Execution time Memory
978018 2024-05-08T16:32:59 Z kilkuwu Arranging Shoes (IOI19_shoes) C++17
100 / 100
 443 ms 36268 KB 
#include "shoes.h"

#include <bits/stdc++.h>

struct SegmentTree {
  int n;
  std::vector<int> t;

  SegmentTree(int _n) : n(_n), t(2 * n) {}

  void update(int l, int r, int v) {
    for (l += n, r += n; l < r; l >>= 1, r >>= 1) {
      if (l & 1) t[l] += v, l++;
      if (r & 1) --r, t[r] += v;
    }
  }

  int query(int p) {
    int ans = 0;
    for (p += n; p > 0; p >>= 1) {
      ans += t[p];
    }
    return ans;
  }
};

long long count_swaps(std::vector<int> s) {

  int n = (int) s.size() / 2;
  SegmentTree tree(2 * n);

  for (int i = 0; i < 2 * n; i++) {
    tree.update(i, i + 1, i);
  }

  std::map<int, std::vector<int>> mp;

  std::set<std::pair<int, int>> st;
  for (int i = 2 * n; i >= 0; i--) {
    mp[s[i]].push_back(i);
    st.insert({i, s[i]});
  }

  long long ans = 0;
  for (int i = 0; i < n; i++) {
    int f = 2 * i; 
    int v = st.begin()->second;

    auto pos = mp[-v].back();
    mp[-v].pop_back();
    mp[v].pop_back();

    int real_pos = tree.query(pos);
    ans += real_pos - (f + (v < 0));
    tree.update(0, pos, 1);
    st.erase(st.begin());
    st.erase({pos, s[pos]});
  }

  return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 500 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 360 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 5 ms 1628 KB Output is correct
21 Correct 6 ms 1628 KB Output is correct
22 Correct 67 ms 13740 KB Output is correct
23 Correct 66 ms 13636 KB Output is correct
24 Correct 65 ms 13636 KB Output is correct
25 Correct 59 ms 13652 KB Output is correct
26 Correct 73 ms 15008 KB Output is correct
27 Correct 59 ms 14660 KB Output is correct
28 Correct 60 ms 14976 KB Output is correct
29 Correct 61 ms 14796 KB Output is correct
30 Correct 61 ms 14796 KB Output is correct
31 Correct 64 ms 14916 KB Output is correct
32 Correct 61 ms 14792 KB Output is correct
33 Correct 73 ms 14792 KB Output is correct
34 Correct 60 ms 14776 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 61 ms 15012 KB Output is correct
38 Correct 60 ms 14764 KB Output is correct
39 Correct 60 ms 14796 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 319 ms 34860 KB Output is correct
6 Correct 122 ms 15700 KB Output is correct
7 Correct 308 ms 34864 KB Output is correct
8 Correct 68 ms 13524 KB Output is correct
9 Correct 343 ms 34644 KB Output is correct
10 Correct 190 ms 23960 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 500 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 360 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 444 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 2 ms 696 KB Output is correct
42 Correct 1 ms 696 KB Output is correct
43 Correct 2 ms 600 KB Output is correct
44 Correct 2 ms 604 KB Output is correct
45 Correct 1 ms 604 KB Output is correct
46 Correct 1 ms 604 KB Output is correct
47 Correct 1 ms 604 KB Output is correct
48 Correct 1 ms 600 KB Output is correct
49 Correct 2 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 604 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 500 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 360 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 344 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 5 ms 1628 KB Output is correct
55 Correct 6 ms 1628 KB Output is correct
56 Correct 67 ms 13740 KB Output is correct
57 Correct 66 ms 13636 KB Output is correct
58 Correct 65 ms 13636 KB Output is correct
59 Correct 59 ms 13652 KB Output is correct
60 Correct 73 ms 15008 KB Output is correct
61 Correct 59 ms 14660 KB Output is correct
62 Correct 60 ms 14976 KB Output is correct
63 Correct 61 ms 14796 KB Output is correct
64 Correct 61 ms 14796 KB Output is correct
65 Correct 64 ms 14916 KB Output is correct
66 Correct 61 ms 14792 KB Output is correct
67 Correct 73 ms 14792 KB Output is correct
68 Correct 60 ms 14776 KB Output is correct
69 Correct 0 ms 344 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 61 ms 15012 KB Output is correct
72 Correct 60 ms 14764 KB Output is correct
73 Correct 60 ms 14796 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 0 ms 348 KB Output is correct
78 Correct 319 ms 34860 KB Output is correct
79 Correct 122 ms 15700 KB Output is correct
80 Correct 308 ms 34864 KB Output is correct
81 Correct 68 ms 13524 KB Output is correct
82 Correct 343 ms 34644 KB Output is correct
83 Correct 190 ms 23960 KB Output is correct
84 Correct 1 ms 348 KB Output is correct
85 Correct 0 ms 444 KB Output is correct
86 Correct 0 ms 348 KB Output is correct
87 Correct 1 ms 348 KB Output is correct
88 Correct 2 ms 696 KB Output is correct
89 Correct 1 ms 696 KB Output is correct
90 Correct 2 ms 600 KB Output is correct
91 Correct 2 ms 604 KB Output is correct
92 Correct 1 ms 604 KB Output is correct
93 Correct 1 ms 604 KB Output is correct
94 Correct 1 ms 604 KB Output is correct
95 Correct 1 ms 600 KB Output is correct
96 Correct 2 ms 348 KB Output is correct
97 Correct 1 ms 348 KB Output is correct
98 Correct 1 ms 348 KB Output is correct
99 Correct 1 ms 604 KB Output is correct
100 Correct 2 ms 600 KB Output is correct
101 Correct 16 ms 3676 KB Output is correct
102 Correct 12 ms 2140 KB Output is correct
103 Correct 443 ms 36112 KB Output is correct
104 Correct 304 ms 36108 KB Output is correct
105 Correct 267 ms 26704 KB Output is correct
106 Correct 325 ms 36156 KB Output is correct
107 Correct 135 ms 17440 KB Output is correct
108 Correct 131 ms 19516 KB Output is correct
109 Correct 65 ms 14792 KB Output is correct
110 Correct 61 ms 14796 KB Output is correct
111 Correct 288 ms 33876 KB Output is correct
112 Correct 298 ms 31240 KB Output is correct
113 Correct 150 ms 17724 KB Output is correct
114 Correct 285 ms 36104 KB Output is correct
115 Correct 335 ms 36268 KB Output is correct