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Submission #867912

# Submission time Handle Problem Language Result Execution time Memory
867912 2023-10-29T18:11:48 Z AliHasanli Arranging Shoes (IOI19_shoes) C++17
100 / 100
 257 ms 147800 KB 
#include <bits/stdc++.h>
using namespace std;
long long count_swaps(vector<int> S) {
	int N = int(S.size());
	unordered_map<int, queue<int>> unpaired;
	vector<int> bit(N+1);
	long long 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 1 ms 344 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 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 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 1 ms 348 KB Output is correct
8 Correct 0 ms 436 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 1 ms 500 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 1 ms 644 KB Output is correct
20 Correct 1 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 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 344 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 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 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 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 432 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 440 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 3 ms 604 KB Output is correct
21 Correct 3 ms 604 KB Output is correct
22 Correct 26 ms 4032 KB Output is correct
23 Correct 23 ms 4076 KB Output is correct
24 Correct 27 ms 3932 KB Output is correct
25 Correct 28 ms 4288 KB Output is correct
26 Correct 32 ms 4136 KB Output is correct
27 Correct 21 ms 3676 KB Output is correct
28 Correct 21 ms 4444 KB Output is correct
29 Correct 23 ms 4276 KB Output is correct
30 Correct 22 ms 4460 KB Output is correct
31 Correct 27 ms 3932 KB Output is correct
32 Correct 23 ms 4444 KB Output is correct
33 Correct 21 ms 4188 KB Output is correct
34 Correct 29 ms 4592 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 23 ms 4444 KB Output is correct
38 Correct 23 ms 4288 KB Output is correct
39 Correct 23 ms 4444 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 1 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 236 ms 147680 KB Output is correct
6 Correct 43 ms 16548 KB Output is correct
7 Correct 257 ms 147428 KB Output is correct
8 Correct 28 ms 4448 KB Output is correct
9 Correct 238 ms 147800 KB Output is correct
10 Correct 146 ms 75804 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 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 1 ms 348 KB Output is correct
8 Correct 0 ms 436 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 1 ms 500 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 1 ms 644 KB Output is correct
20 Correct 1 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 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 344 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 344 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Correct 1 ms 1884 KB Output is correct
42 Correct 1 ms 1668 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 1372 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 596 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 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 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 1 ms 348 KB Output is correct
8 Correct 0 ms 436 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 1 ms 500 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 1 ms 644 KB Output is correct
20 Correct 1 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 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 344 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 604 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 1 ms 344 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 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 432 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 440 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 3 ms 604 KB Output is correct
55 Correct 3 ms 604 KB Output is correct
56 Correct 26 ms 4032 KB Output is correct
57 Correct 23 ms 4076 KB Output is correct
58 Correct 27 ms 3932 KB Output is correct
59 Correct 28 ms 4288 KB Output is correct
60 Correct 32 ms 4136 KB Output is correct
61 Correct 21 ms 3676 KB Output is correct
62 Correct 21 ms 4444 KB Output is correct
63 Correct 23 ms 4276 KB Output is correct
64 Correct 22 ms 4460 KB Output is correct
65 Correct 27 ms 3932 KB Output is correct
66 Correct 23 ms 4444 KB Output is correct
67 Correct 21 ms 4188 KB Output is correct
68 Correct 29 ms 4592 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 23 ms 4444 KB Output is correct
72 Correct 23 ms 4288 KB Output is correct
73 Correct 23 ms 4444 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 1 ms 348 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 236 ms 147680 KB Output is correct
79 Correct 43 ms 16548 KB Output is correct
80 Correct 257 ms 147428 KB Output is correct
81 Correct 28 ms 4448 KB Output is correct
82 Correct 238 ms 147800 KB Output is correct
83 Correct 146 ms 75804 KB Output is correct
84 Correct 0 ms 344 KB Output is correct
85 Correct 0 ms 348 KB Output is correct
86 Correct 1 ms 348 KB Output is correct
87 Correct 1 ms 604 KB Output is correct
88 Correct 1 ms 1884 KB Output is correct
89 Correct 1 ms 1668 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 1372 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 596 KB Output is correct
99 Correct 2 ms 1884 KB Output is correct
100 Correct 1 ms 1732 KB Output is correct
101 Correct 16 ms 13504 KB Output is correct
102 Correct 5 ms 3420 KB Output is correct
103 Correct 251 ms 147532 KB Output is correct
104 Correct 225 ms 147664 KB Output is correct
105 Correct 143 ms 85188 KB Output is correct
106 Correct 245 ms 147636 KB Output is correct
107 Correct 47 ms 19884 KB Output is correct
108 Correct 73 ms 35908 KB Output is correct
109 Correct 22 ms 4432 KB Output is correct
110 Correct 21 ms 4436 KB Output is correct
111 Correct 215 ms 131964 KB Output is correct
112 Correct 196 ms 114900 KB Output is correct
113 Correct 49 ms 21680 KB Output is correct
114 Correct 231 ms 147580 KB Output is correct
115 Correct 254 ms 147712 KB Output is correct