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Submission #272569

# Submission time Handle Problem Language Result Execution time Memory
272569 2020-08-18T12:36:44 Z toonewbie Arranging Shoes (IOI19_shoes) C++17
100 / 100
 353 ms 146988 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;

using ll = long long;
ll count_swaps(vector<int> S) {
  int N = int(S.size());
  unordered_map<int, queue<int>> unpaired;
  vector<int> bit(N+1);
  ll ans = 0;
  for (int i = 0; i < N; i++) {
    int j;
    if (unpaired[-S[i]].empty()) {
      j = i+1;
      unpaired[S[i]].push(j);
    } else {
      j = unpaired[-S[i]].front(); unpaired[-S[i]].pop();
      ans += i;
      for (int a = j; a; a -= a & (-a)) {
        ans -= bit[a];
      }
      if (S[i] < 0) ans++;
    }
    for (int a = j; a <= N; a += a & (-a)) {
      bit[a]++;
    }
  }
  return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 276 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 0 ms 256 KB Output is correct
22 Correct 1 ms 256 KB Output is correct
23 Correct 1 ms 256 KB Output is correct
24 Correct 1 ms 256 KB Output is correct
25 Correct 1 ms 256 KB Output is correct
26 Correct 1 ms 256 KB Output is correct
27 Correct 1 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 1 ms 256 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 1 ms 288 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 5 ms 640 KB Output is correct
21 Correct 5 ms 640 KB Output is correct
22 Correct 47 ms 3960 KB Output is correct
23 Correct 45 ms 3960 KB Output is correct
24 Correct 58 ms 3968 KB Output is correct
25 Correct 42 ms 4088 KB Output is correct
26 Correct 46 ms 3960 KB Output is correct
27 Correct 42 ms 3708 KB Output is correct
28 Correct 46 ms 4344 KB Output is correct
29 Correct 52 ms 4320 KB Output is correct
30 Correct 46 ms 4344 KB Output is correct
31 Correct 49 ms 3960 KB Output is correct
32 Correct 52 ms 4344 KB Output is correct
33 Correct 41 ms 4216 KB Output is correct
34 Correct 48 ms 4608 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 1 ms 256 KB Output is correct
37 Correct 45 ms 4472 KB Output is correct
38 Correct 46 ms 4344 KB Output is correct
39 Correct 44 ms 4344 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 324 ms 146988 KB Output is correct
6 Correct 154 ms 16504 KB Output is correct
7 Correct 326 ms 146880 KB Output is correct
8 Correct 55 ms 4344 KB Output is correct
9 Correct 336 ms 146920 KB Output is correct
10 Correct 203 ms 75424 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 276 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 0 ms 256 KB Output is correct
22 Correct 1 ms 256 KB Output is correct
23 Correct 1 ms 256 KB Output is correct
24 Correct 1 ms 256 KB Output is correct
25 Correct 1 ms 256 KB Output is correct
26 Correct 1 ms 256 KB Output is correct
27 Correct 1 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 1 ms 256 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 1 ms 288 KB Output is correct
37 Correct 1 ms 256 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 512 KB Output is correct
40 Correct 1 ms 640 KB Output is correct
41 Correct 2 ms 1792 KB Output is correct
42 Correct 3 ms 1792 KB Output is correct
43 Correct 3 ms 1664 KB Output is correct
44 Correct 3 ms 1408 KB Output is correct
45 Correct 2 ms 1280 KB Output is correct
46 Correct 2 ms 1152 KB Output is correct
47 Correct 1 ms 1024 KB Output is correct
48 Correct 2 ms 768 KB Output is correct
49 Correct 1 ms 640 KB Output is correct
50 Correct 1 ms 416 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 3 ms 1792 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 276 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 0 ms 256 KB Output is correct
22 Correct 1 ms 256 KB Output is correct
23 Correct 1 ms 256 KB Output is correct
24 Correct 1 ms 256 KB Output is correct
25 Correct 1 ms 256 KB Output is correct
26 Correct 1 ms 256 KB Output is correct
27 Correct 1 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 1 ms 256 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 1 ms 288 KB Output is correct
37 Correct 1 ms 256 KB Output is correct
38 Correct 1 ms 256 KB Output is correct
39 Correct 1 ms 256 KB Output is correct
40 Correct 1 ms 256 KB Output is correct
41 Correct 1 ms 256 KB Output is correct
42 Correct 0 ms 256 KB Output is correct
43 Correct 0 ms 256 KB Output is correct
44 Correct 1 ms 256 KB Output is correct
45 Correct 0 ms 256 KB Output is correct
46 Correct 0 ms 256 KB Output is correct
47 Correct 0 ms 256 KB Output is correct
48 Correct 0 ms 256 KB Output is correct
49 Correct 0 ms 256 KB Output is correct
50 Correct 1 ms 256 KB Output is correct
51 Correct 1 ms 256 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 384 KB Output is correct
54 Correct 5 ms 640 KB Output is correct
55 Correct 5 ms 640 KB Output is correct
56 Correct 47 ms 3960 KB Output is correct
57 Correct 45 ms 3960 KB Output is correct
58 Correct 58 ms 3968 KB Output is correct
59 Correct 42 ms 4088 KB Output is correct
60 Correct 46 ms 3960 KB Output is correct
61 Correct 42 ms 3708 KB Output is correct
62 Correct 46 ms 4344 KB Output is correct
63 Correct 52 ms 4320 KB Output is correct
64 Correct 46 ms 4344 KB Output is correct
65 Correct 49 ms 3960 KB Output is correct
66 Correct 52 ms 4344 KB Output is correct
67 Correct 41 ms 4216 KB Output is correct
68 Correct 48 ms 4608 KB Output is correct
69 Correct 0 ms 256 KB Output is correct
70 Correct 1 ms 256 KB Output is correct
71 Correct 45 ms 4472 KB Output is correct
72 Correct 46 ms 4344 KB Output is correct
73 Correct 44 ms 4344 KB Output is correct
74 Correct 1 ms 256 KB Output is correct
75 Correct 1 ms 256 KB Output is correct
76 Correct 0 ms 256 KB Output is correct
77 Correct 0 ms 256 KB Output is correct
78 Correct 324 ms 146988 KB Output is correct
79 Correct 154 ms 16504 KB Output is correct
80 Correct 326 ms 146880 KB Output is correct
81 Correct 55 ms 4344 KB Output is correct
82 Correct 336 ms 146920 KB Output is correct
83 Correct 203 ms 75424 KB Output is correct
84 Correct 1 ms 256 KB Output is correct
85 Correct 1 ms 384 KB Output is correct
86 Correct 1 ms 512 KB Output is correct
87 Correct 1 ms 640 KB Output is correct
88 Correct 2 ms 1792 KB Output is correct
89 Correct 3 ms 1792 KB Output is correct
90 Correct 3 ms 1664 KB Output is correct
91 Correct 3 ms 1408 KB Output is correct
92 Correct 2 ms 1280 KB Output is correct
93 Correct 2 ms 1152 KB Output is correct
94 Correct 1 ms 1024 KB Output is correct
95 Correct 2 ms 768 KB Output is correct
96 Correct 1 ms 640 KB Output is correct
97 Correct 1 ms 416 KB Output is correct
98 Correct 1 ms 384 KB Output is correct
99 Correct 3 ms 1792 KB Output is correct
100 Correct 2 ms 1792 KB Output is correct
101 Correct 21 ms 13560 KB Output is correct
102 Correct 9 ms 3584 KB Output is correct
103 Correct 353 ms 146752 KB Output is correct
104 Correct 302 ms 146876 KB Output is correct
105 Correct 206 ms 84892 KB Output is correct
106 Correct 321 ms 146880 KB Output is correct
107 Correct 148 ms 19836 KB Output is correct
108 Correct 110 ms 35692 KB Output is correct
109 Correct 51 ms 4344 KB Output is correct
110 Correct 44 ms 4344 KB Output is correct
111 Correct 299 ms 131244 KB Output is correct
112 Correct 276 ms 115520 KB Output is correct
113 Correct 121 ms 21624 KB Output is correct
114 Correct 340 ms 146752 KB Output is correct
115 Correct 350 ms 146752 KB Output is correct