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Submission #891586

# Submission time Handle Problem Language Result Execution time Memory
891586 2023-12-23T09:11:30 Z Arp Arranging Shoes (IOI19_shoes) C++17
100 / 100
 394 ms 148048 KB 
#include<bits/stdc++.h>
using namespace std;

using i64 = long long;

i64 count_swaps(vector<int> arr){
  int n = arr.size();
  map<int,queue<int>> mp;
  vector<int> bit(n + 1);
  i64 ans = 0;
  for(int i = 0;i<n;i++){
    int e = arr[i];
    int ind;
    if(mp[-e].empty()){
      ind = i + 1;
      mp[e].push(ind);
    }else{
      ind = mp[-e].front();
      mp[-e].pop();
      ans += i; 
      for(int j = ind;j > 0;j -= (j & -j)){
        ans -= bit[j];
      } 
      if(e < 0) ans ++;
    }
    // adding twice if found both the pair
    for(;ind <= n;ind += (ind & -ind)){
      bit[ind] ++;
    }
  }
  return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 344 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 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 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 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 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 432 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 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 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 344 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 1 ms 348 KB Output is correct
2 Correct 0 ms 344 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 348 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 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 436 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 2 ms 604 KB Output is correct
21 Correct 3 ms 604 KB Output is correct
22 Correct 21 ms 3044 KB Output is correct
23 Correct 20 ms 4028 KB Output is correct
24 Correct 22 ms 3896 KB Output is correct
25 Correct 17 ms 4184 KB Output is correct
26 Correct 21 ms 3932 KB Output is correct
27 Correct 17 ms 3676 KB Output is correct
28 Correct 18 ms 4408 KB Output is correct
29 Correct 19 ms 4368 KB Output is correct
30 Correct 18 ms 4444 KB Output is correct
31 Correct 22 ms 4032 KB Output is correct
32 Correct 20 ms 4444 KB Output is correct
33 Correct 18 ms 4180 KB Output is correct
34 Correct 18 ms 4432 KB Output is correct
35 Correct 0 ms 600 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 18 ms 4288 KB Output is correct
38 Correct 18 ms 4444 KB Output is correct
39 Correct 18 ms 4272 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 368 ms 147876 KB Output is correct
6 Correct 85 ms 16588 KB Output is correct
7 Correct 367 ms 147848 KB Output is correct
8 Correct 20 ms 4436 KB Output is correct
9 Correct 367 ms 148048 KB Output is correct
10 Correct 229 ms 76008 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 344 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 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 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 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 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 432 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 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 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Correct 2 ms 1724 KB Output is correct
42 Correct 2 ms 1884 KB Output is correct
43 Correct 1 ms 1628 KB Output is correct
44 Correct 1 ms 1372 KB Output is correct
45 Correct 1 ms 1268 KB Output is correct
46 Correct 1 ms 1116 KB Output is correct
47 Correct 1 ms 860 KB Output is correct
48 Correct 1 ms 860 KB Output is correct
49 Correct 1 ms 604 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 1 ms 448 KB Output is correct
52 Correct 2 ms 1884 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 344 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 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 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 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 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 432 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 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 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 344 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 348 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 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 436 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 2 ms 604 KB Output is correct
55 Correct 3 ms 604 KB Output is correct
56 Correct 21 ms 3044 KB Output is correct
57 Correct 20 ms 4028 KB Output is correct
58 Correct 22 ms 3896 KB Output is correct
59 Correct 17 ms 4184 KB Output is correct
60 Correct 21 ms 3932 KB Output is correct
61 Correct 17 ms 3676 KB Output is correct
62 Correct 18 ms 4408 KB Output is correct
63 Correct 19 ms 4368 KB Output is correct
64 Correct 18 ms 4444 KB Output is correct
65 Correct 22 ms 4032 KB Output is correct
66 Correct 20 ms 4444 KB Output is correct
67 Correct 18 ms 4180 KB Output is correct
68 Correct 18 ms 4432 KB Output is correct
69 Correct 0 ms 600 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 18 ms 4288 KB Output is correct
72 Correct 18 ms 4444 KB Output is correct
73 Correct 18 ms 4272 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 368 ms 147876 KB Output is correct
79 Correct 85 ms 16588 KB Output is correct
80 Correct 367 ms 147848 KB Output is correct
81 Correct 20 ms 4436 KB Output is correct
82 Correct 367 ms 148048 KB Output is correct
83 Correct 229 ms 76008 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 1 ms 348 KB Output is correct
86 Correct 0 ms 348 KB Output is correct
87 Correct 1 ms 604 KB Output is correct
88 Correct 2 ms 1724 KB Output is correct
89 Correct 2 ms 1884 KB Output is correct
90 Correct 1 ms 1628 KB Output is correct
91 Correct 1 ms 1372 KB Output is correct
92 Correct 1 ms 1268 KB Output is correct
93 Correct 1 ms 1116 KB Output is correct
94 Correct 1 ms 860 KB Output is correct
95 Correct 1 ms 860 KB Output is correct
96 Correct 1 ms 604 KB Output is correct
97 Correct 1 ms 348 KB Output is correct
98 Correct 1 ms 448 KB Output is correct
99 Correct 2 ms 1884 KB Output is correct
100 Correct 2 ms 1880 KB Output is correct
101 Correct 17 ms 13660 KB Output is correct
102 Correct 9 ms 3676 KB Output is correct
103 Correct 394 ms 147884 KB Output is correct
104 Correct 324 ms 147836 KB Output is correct
105 Correct 237 ms 85620 KB Output is correct
106 Correct 363 ms 148048 KB Output is correct
107 Correct 96 ms 19964 KB Output is correct
108 Correct 129 ms 36016 KB Output is correct
109 Correct 20 ms 4432 KB Output is correct
110 Correct 18 ms 4444 KB Output is correct
111 Correct 339 ms 132176 KB Output is correct
112 Correct 326 ms 115792 KB Output is correct
113 Correct 98 ms 22004 KB Output is correct
114 Correct 362 ms 148048 KB Output is correct
115 Correct 357 ms 148028 KB Output is correct