oj.uz

Submission #145191

# Submission time Handle Problem Language Result Execution time Memory
145191 2019-08-19T08:39:32 Z ecnerwala Arranging Shoes (IOI19_shoes) C++14
100 / 100
 423 ms 146620 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 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 380 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 252 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 3 ms 376 KB Output is correct
20 Correct 7 ms 632 KB Output is correct
21 Correct 6 ms 632 KB Output is correct
22 Correct 45 ms 3960 KB Output is correct
23 Correct 45 ms 3960 KB Output is correct
24 Correct 45 ms 3960 KB Output is correct
25 Correct 38 ms 4088 KB Output is correct
26 Correct 47 ms 3960 KB Output is correct
27 Correct 38 ms 3704 KB Output is correct
28 Correct 40 ms 4344 KB Output is correct
29 Correct 40 ms 4348 KB Output is correct
30 Correct 43 ms 4468 KB Output is correct
31 Correct 46 ms 3960 KB Output is correct
32 Correct 40 ms 4344 KB Output is correct
33 Correct 39 ms 4188 KB Output is correct
34 Correct 41 ms 4476 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 256 KB Output is correct
37 Correct 40 ms 4344 KB Output is correct
38 Correct 41 ms 4340 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 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 423 ms 146492 KB Output is correct
6 Correct 90 ms 16604 KB Output is correct
7 Correct 397 ms 146620 KB Output is correct
8 Correct 52 ms 4344 KB Output is correct
9 Correct 402 ms 146492 KB Output is correct
10 Correct 258 ms 75428 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 380 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 364 KB Output is correct
38 Correct 3 ms 380 KB Output is correct
39 Correct 3 ms 504 KB Output is correct
40 Correct 1 ms 632 KB Output is correct
41 Correct 4 ms 1784 KB Output is correct
42 Correct 4 ms 1784 KB Output is correct
43 Correct 4 ms 1528 KB Output is correct
44 Correct 4 ms 1528 KB Output is correct
45 Correct 3 ms 1272 KB Output is correct
46 Correct 3 ms 1144 KB Output is correct
47 Correct 3 ms 1016 KB Output is correct
48 Correct 3 ms 760 KB Output is correct
49 Correct 3 ms 608 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 4 ms 1784 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 380 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 256 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 256 KB Output is correct
40 Correct 2 ms 252 KB Output is correct
41 Correct 2 ms 256 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 2 ms 256 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 256 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 256 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct
53 Correct 3 ms 376 KB Output is correct
54 Correct 7 ms 632 KB Output is correct
55 Correct 6 ms 632 KB Output is correct
56 Correct 45 ms 3960 KB Output is correct
57 Correct 45 ms 3960 KB Output is correct
58 Correct 45 ms 3960 KB Output is correct
59 Correct 38 ms 4088 KB Output is correct
60 Correct 47 ms 3960 KB Output is correct
61 Correct 38 ms 3704 KB Output is correct
62 Correct 40 ms 4344 KB Output is correct
63 Correct 40 ms 4348 KB Output is correct
64 Correct 43 ms 4468 KB Output is correct
65 Correct 46 ms 3960 KB Output is correct
66 Correct 40 ms 4344 KB Output is correct
67 Correct 39 ms 4188 KB Output is correct
68 Correct 41 ms 4476 KB Output is correct
69 Correct 2 ms 376 KB Output is correct
70 Correct 2 ms 256 KB Output is correct
71 Correct 40 ms 4344 KB Output is correct
72 Correct 41 ms 4340 KB Output is correct
73 Correct 44 ms 4344 KB Output is correct
74 Correct 2 ms 256 KB Output is correct
75 Correct 2 ms 376 KB Output is correct
76 Correct 2 ms 256 KB Output is correct
77 Correct 2 ms 376 KB Output is correct
78 Correct 423 ms 146492 KB Output is correct
79 Correct 90 ms 16604 KB Output is correct
80 Correct 397 ms 146620 KB Output is correct
81 Correct 52 ms 4344 KB Output is correct
82 Correct 402 ms 146492 KB Output is correct
83 Correct 258 ms 75428 KB Output is correct
84 Correct 2 ms 364 KB Output is correct
85 Correct 3 ms 380 KB Output is correct
86 Correct 3 ms 504 KB Output is correct
87 Correct 1 ms 632 KB Output is correct
88 Correct 4 ms 1784 KB Output is correct
89 Correct 4 ms 1784 KB Output is correct
90 Correct 4 ms 1528 KB Output is correct
91 Correct 4 ms 1528 KB Output is correct
92 Correct 3 ms 1272 KB Output is correct
93 Correct 3 ms 1144 KB Output is correct
94 Correct 3 ms 1016 KB Output is correct
95 Correct 3 ms 760 KB Output is correct
96 Correct 3 ms 608 KB Output is correct
97 Correct 2 ms 376 KB Output is correct
98 Correct 2 ms 376 KB Output is correct
99 Correct 4 ms 1784 KB Output is correct
100 Correct 4 ms 1784 KB Output is correct
101 Correct 26 ms 13560 KB Output is correct
102 Correct 12 ms 3576 KB Output is correct
103 Correct 418 ms 146596 KB Output is correct
104 Correct 364 ms 146288 KB Output is correct
105 Correct 309 ms 84464 KB Output is correct
106 Correct 393 ms 145212 KB Output is correct
107 Correct 93 ms 18556 KB Output is correct
108 Correct 134 ms 34544 KB Output is correct
109 Correct 41 ms 3192 KB Output is correct
110 Correct 39 ms 3064 KB Output is correct
111 Correct 367 ms 129688 KB Output is correct
112 Correct 347 ms 114060 KB Output is correct
113 Correct 106 ms 20216 KB Output is correct
114 Correct 390 ms 145312 KB Output is correct
115 Correct 395 ms 145292 KB Output is correct