oj.uz

Submission #914110

# Submission time Handle Problem Language Result Execution time Memory
914110 2024-01-21T06:23:02 Z lamter Arranging Shoes (IOI19_shoes) C++17
100 / 100
 481 ms 149652 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using i64 = long long int;

struct BIT {
	int n;
	std::vector <int> a;

	BIT(int _n = 0) : n(_n) {
		a.assign(n, 0);
	}

	void update(int x, int v) {
		for (; x < n; x |= x + 1)
			a[x] += v;
	}

	int get(int x) const {
		int ans = 0;
		for (; x >= 0; x = (x & (x + 1)) - 1)
			ans += a[x];
		return ans;
	}
};

i64 count_inversion(std::vector <int> a) {
	i64 ans = 0;
	int n = a.size();
	BIT bit(n);
	for (int i = 0; i < n; i += 1) {
		ans += i - bit.get(a[i]);
		bit.update(a[i], +1);
	}
	return ans;
}

i64 count_swaps(std::vector <int> a) {
	int n = (int) a.size();
	std::map <int, std::deque <int>> maps;
	int T = 0;
	std::vector <int> pos(n);
	for (int i = 0; i < n; i += 1) {
		int x = a[i];
		if (maps[-x].empty()) {
			maps[x].push_back(T + (x > 0));
			pos[i] = T + (x > 0);
			T += 2;
		} else {
			pos[i] = maps[-x].front() + (x > 0 ? +1 : -1);
			maps[-x].pop_front();
		}
	}
	return count_inversion(pos);
}

#ifdef ILOVELAMTER
	int main(void) {
		std::cout << count_swaps({4, -4}) << '\n';
		return 0;
	}
#endif // ILOVELAMTER

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 1 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 1 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 1 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 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 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 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 0 ms 344 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 0 ms 600 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 360 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 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 360 KB Output is correct
11 Correct 0 ms 344 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 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 428 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 444 KB Output is correct
20 Correct 3 ms 860 KB Output is correct
21 Correct 3 ms 860 KB Output is correct
22 Correct 25 ms 5604 KB Output is correct
23 Correct 22 ms 5600 KB Output is correct
24 Correct 25 ms 5460 KB Output is correct
25 Correct 21 ms 5720 KB Output is correct
26 Correct 24 ms 5468 KB Output is correct
27 Correct 21 ms 5204 KB Output is correct
28 Correct 22 ms 5968 KB Output is correct
29 Correct 22 ms 5972 KB Output is correct
30 Correct 21 ms 5828 KB Output is correct
31 Correct 25 ms 5460 KB Output is correct
32 Correct 21 ms 5980 KB Output is correct
33 Correct 22 ms 5724 KB Output is correct
34 Correct 22 ms 6056 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 23 ms 5980 KB Output is correct
38 Correct 23 ms 6144 KB Output is correct
39 Correct 22 ms 5972 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 444 ms 149588 KB Output is correct
6 Correct 87 ms 18180 KB Output is correct
7 Correct 451 ms 149552 KB Output is correct
8 Correct 24 ms 5968 KB Output is correct
9 Correct 451 ms 149484 KB Output is correct
10 Correct 244 ms 77396 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 1 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 1 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 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 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 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 0 ms 344 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 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 1 ms 856 KB Output is correct
41 Correct 2 ms 1884 KB Output is correct
42 Correct 2 ms 1724 KB Output is correct
43 Correct 2 ms 1628 KB Output is correct
44 Correct 2 ms 1372 KB Output is correct
45 Correct 2 ms 1372 KB Output is correct
46 Correct 1 ms 1112 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 344 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 2 ms 1720 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 1 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 1 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 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 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 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 0 ms 344 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 348 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 360 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 0 ms 360 KB Output is correct
45 Correct 0 ms 344 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 344 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 428 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 444 KB Output is correct
54 Correct 3 ms 860 KB Output is correct
55 Correct 3 ms 860 KB Output is correct
56 Correct 25 ms 5604 KB Output is correct
57 Correct 22 ms 5600 KB Output is correct
58 Correct 25 ms 5460 KB Output is correct
59 Correct 21 ms 5720 KB Output is correct
60 Correct 24 ms 5468 KB Output is correct
61 Correct 21 ms 5204 KB Output is correct
62 Correct 22 ms 5968 KB Output is correct
63 Correct 22 ms 5972 KB Output is correct
64 Correct 21 ms 5828 KB Output is correct
65 Correct 25 ms 5460 KB Output is correct
66 Correct 21 ms 5980 KB Output is correct
67 Correct 22 ms 5724 KB Output is correct
68 Correct 22 ms 6056 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Correct 1 ms 348 KB Output is correct
71 Correct 23 ms 5980 KB Output is correct
72 Correct 23 ms 6144 KB Output is correct
73 Correct 22 ms 5972 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 1 ms 348 KB Output is correct
77 Correct 1 ms 344 KB Output is correct
78 Correct 444 ms 149588 KB Output is correct
79 Correct 87 ms 18180 KB Output is correct
80 Correct 451 ms 149552 KB Output is correct
81 Correct 24 ms 5968 KB Output is correct
82 Correct 451 ms 149484 KB Output is correct
83 Correct 244 ms 77396 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 0 ms 348 KB Output is correct
86 Correct 1 ms 344 KB Output is correct
87 Correct 1 ms 856 KB Output is correct
88 Correct 2 ms 1884 KB Output is correct
89 Correct 2 ms 1724 KB Output is correct
90 Correct 2 ms 1628 KB Output is correct
91 Correct 2 ms 1372 KB Output is correct
92 Correct 2 ms 1372 KB Output is correct
93 Correct 1 ms 1112 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 344 KB Output is correct
98 Correct 1 ms 348 KB Output is correct
99 Correct 2 ms 1720 KB Output is correct
100 Correct 2 ms 1884 KB Output is correct
101 Correct 19 ms 13660 KB Output is correct
102 Correct 9 ms 3676 KB Output is correct
103 Correct 481 ms 149416 KB Output is correct
104 Correct 398 ms 149584 KB Output is correct
105 Correct 294 ms 87148 KB Output is correct
106 Correct 428 ms 149584 KB Output is correct
107 Correct 94 ms 21464 KB Output is correct
108 Correct 131 ms 37460 KB Output is correct
109 Correct 25 ms 5968 KB Output is correct
110 Correct 25 ms 6012 KB Output is correct
111 Correct 397 ms 133636 KB Output is correct
112 Correct 413 ms 117576 KB Output is correct
113 Correct 110 ms 23448 KB Output is correct
114 Correct 464 ms 149588 KB Output is correct
115 Correct 451 ms 149652 KB Output is correct