oj.uz

Submission #726968

# Submission time Handle Problem Language Result Execution time Memory
726968 2023-04-19T17:50:43 Z viwlesxq Arranging Shoes (IOI19_shoes) C++17
100 / 100
 418 ms 281900 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

typedef int64_t ll;
typedef string str;

#define ordered_set tree <int, null_type, less <int>, rb_tree_tag, tree_order_statistics_node_update>

long long count_swaps(vector <int> S) {
  int n = (int)S.size();
  ll ans = 0;
  for (int i = 0; i < n; ++i) {
    S[i] += n;
  }
  vector <deque <int>> pos(2 * n + 1);
  vector <bool> used(n, false);
  ordered_set st;
  for (int i = 0; i < n; ++i) {
    pos[S[i]].push_back(i);
  }
  for (int i = 0; i + 1 < n; ++i) {
    if (used[i]) {
      continue;
    }
    if (S[i] > n) {
      int left = S[i] - n - 2 * (S[i] - n) + n, right = S[i];
      int from = pos[left].front();
      ans += from - i;
      ans -= (int)st.order_of_key(from + 1) - (int)st.order_of_key(i);
      st.insert(i), st.insert(from);
      used[i] = true, used[from] = true;
      pos[left].pop_front(), pos[right].pop_front();
    } else {
      int left = S[i], right = S[i] - n - 2 * (S[i] - n) + n;
      int from = pos[right].front();
      ans += from - i - 1;
      ans -= (int)st.order_of_key(from + 1) - (int)st.order_of_key(i);
      st.insert(i), st.insert(from);
      used[i] = true, used[from] = true;
      pos[left].pop_front(), pos[right].pop_front();
    }
  }
  return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 1 ms 304 KB Output is correct
12 Correct 1 ms 300 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 296 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 300 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 296 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 304 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 300 KB Output is correct
36 Correct 1 ms 212 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 296 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 304 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 1 ms 1108 KB Output is correct
18 Correct 3 ms 2992 KB Output is correct
19 Correct 3 ms 3124 KB Output is correct
20 Correct 33 ms 28316 KB Output is correct
21 Correct 25 ms 28344 KB Output is correct
22 Correct 254 ms 281784 KB Output is correct
23 Correct 315 ms 281784 KB Output is correct
24 Correct 249 ms 281900 KB Output is correct
25 Correct 274 ms 281528 KB Output is correct
26 Correct 259 ms 281772 KB Output is correct
27 Correct 250 ms 281548 KB Output is correct
28 Correct 267 ms 281732 KB Output is correct
29 Correct 283 ms 281848 KB Output is correct
30 Correct 257 ms 281760 KB Output is correct
31 Correct 267 ms 281820 KB Output is correct
32 Correct 254 ms 281740 KB Output is correct
33 Correct 270 ms 281600 KB Output is correct
34 Correct 263 ms 281844 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 300 KB Output is correct
37 Correct 269 ms 281844 KB Output is correct
38 Correct 278 ms 281740 KB Output is correct
39 Correct 266 ms 281848 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 304 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 391 ms 281884 KB Output is correct
6 Correct 366 ms 281792 KB Output is correct
7 Correct 407 ms 281756 KB Output is correct
8 Correct 256 ms 281804 KB Output is correct
9 Correct 418 ms 281740 KB Output is correct
10 Correct 379 ms 281692 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 1 ms 304 KB Output is correct
12 Correct 1 ms 300 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 296 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 300 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 296 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 304 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 300 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 596 KB Output is correct
40 Correct 2 ms 1108 KB Output is correct
41 Correct 3 ms 3028 KB Output is correct
42 Correct 3 ms 3028 KB Output is correct
43 Correct 3 ms 3000 KB Output is correct
44 Correct 3 ms 3028 KB Output is correct
45 Correct 3 ms 3028 KB Output is correct
46 Correct 4 ms 2996 KB Output is correct
47 Correct 3 ms 3028 KB Output is correct
48 Correct 2 ms 2992 KB Output is correct
49 Correct 3 ms 2992 KB Output is correct
50 Correct 3 ms 3028 KB Output is correct
51 Correct 3 ms 3028 KB Output is correct
52 Correct 3 ms 3028 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 1 ms 304 KB Output is correct
12 Correct 1 ms 300 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 296 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 300 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 296 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 304 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 300 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 296 KB Output is correct
42 Correct 1 ms 300 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 304 KB Output is correct
50 Correct 1 ms 596 KB Output is correct
51 Correct 1 ms 1108 KB Output is correct
52 Correct 3 ms 2992 KB Output is correct
53 Correct 3 ms 3124 KB Output is correct
54 Correct 33 ms 28316 KB Output is correct
55 Correct 25 ms 28344 KB Output is correct
56 Correct 254 ms 281784 KB Output is correct
57 Correct 315 ms 281784 KB Output is correct
58 Correct 249 ms 281900 KB Output is correct
59 Correct 274 ms 281528 KB Output is correct
60 Correct 259 ms 281772 KB Output is correct
61 Correct 250 ms 281548 KB Output is correct
62 Correct 267 ms 281732 KB Output is correct
63 Correct 283 ms 281848 KB Output is correct
64 Correct 257 ms 281760 KB Output is correct
65 Correct 267 ms 281820 KB Output is correct
66 Correct 254 ms 281740 KB Output is correct
67 Correct 270 ms 281600 KB Output is correct
68 Correct 263 ms 281844 KB Output is correct
69 Correct 1 ms 212 KB Output is correct
70 Correct 1 ms 300 KB Output is correct
71 Correct 269 ms 281844 KB Output is correct
72 Correct 278 ms 281740 KB Output is correct
73 Correct 266 ms 281848 KB Output is correct
74 Correct 1 ms 304 KB Output is correct
75 Correct 1 ms 212 KB Output is correct
76 Correct 1 ms 212 KB Output is correct
77 Correct 1 ms 300 KB Output is correct
78 Correct 391 ms 281884 KB Output is correct
79 Correct 366 ms 281792 KB Output is correct
80 Correct 407 ms 281756 KB Output is correct
81 Correct 256 ms 281804 KB Output is correct
82 Correct 418 ms 281740 KB Output is correct
83 Correct 379 ms 281692 KB Output is correct
84 Correct 1 ms 212 KB Output is correct
85 Correct 1 ms 340 KB Output is correct
86 Correct 1 ms 596 KB Output is correct
87 Correct 2 ms 1108 KB Output is correct
88 Correct 3 ms 3028 KB Output is correct
89 Correct 3 ms 3028 KB Output is correct
90 Correct 3 ms 3000 KB Output is correct
91 Correct 3 ms 3028 KB Output is correct
92 Correct 3 ms 3028 KB Output is correct
93 Correct 4 ms 2996 KB Output is correct
94 Correct 3 ms 3028 KB Output is correct
95 Correct 2 ms 2992 KB Output is correct
96 Correct 3 ms 2992 KB Output is correct
97 Correct 3 ms 3028 KB Output is correct
98 Correct 3 ms 3028 KB Output is correct
99 Correct 3 ms 3028 KB Output is correct
100 Correct 3 ms 3028 KB Output is correct
101 Correct 33 ms 28388 KB Output is correct
102 Correct 29 ms 28360 KB Output is correct
103 Correct 350 ms 281796 KB Output is correct
104 Correct 385 ms 281696 KB Output is correct
105 Correct 311 ms 281696 KB Output is correct
106 Correct 365 ms 281748 KB Output is correct
107 Correct 291 ms 281804 KB Output is correct
108 Correct 395 ms 281796 KB Output is correct
109 Correct 257 ms 281820 KB Output is correct
110 Correct 286 ms 281848 KB Output is correct
111 Correct 378 ms 281704 KB Output is correct
112 Correct 328 ms 281760 KB Output is correct
113 Correct 365 ms 281760 KB Output is correct
114 Correct 347 ms 281864 KB Output is correct
115 Correct 359 ms 281728 KB Output is correct