oj.uz

Submission #200386

# Submission time Handle Problem Language Result Execution time Memory
200386 2020-02-06T14:06:56 Z luciocf Arranging Shoes (IOI19_shoes) C++14
100 / 100
 143 ms 19192 KB 
#include <bits/stdc++.h>
#include "shoes.h"

using namespace std;

typedef long long ll;

const int maxn = 2e5+10;

int a[maxn];

vector<int> pos_esq[maxn], pos_dir[maxn];

int bit[maxn];

void upd(int x, int v)
{
	for (; x < maxn; x += (x&-x))
		bit[x] += v;
}

int soma(int x)
{
	int ans = 0;
	for (; x > 0; x -= (x&-x))
		ans += bit[x];
	return ans;
}

ll count_swaps(vector<int> s)
{
	int n = (int)s.size();

	for (int i = 1; i <= n; i++)
	{
		a[i] = s[i-1];
		upd(i, 1);
	}

	for (int i = n; i >= 1; i--)
	{
		if (a[i] < 0) pos_esq[-a[i]].push_back(i);
		else pos_dir[a[i]].push_back(i);
	}

	ll ans = 0;

	for (int i = 1; i <= n; i++)
	{
		if (a[i] < 0)
		{
			a[i] = -a[i];

			if (pos_esq[a[i]].back() != i)
				continue;

			int dir = pos_dir[a[i]].back();

			ans += 1ll*(soma(dir)-soma(i)-1);

			pos_esq[a[i]].pop_back(); pos_dir[a[i]].pop_back();

			upd(dir, -1); upd(i, -1);
		}
		else
		{
			if (pos_dir[a[i]].back() != i)
				continue;

			int esq = pos_esq[a[i]].back();

			ans += 1ll*(soma(esq)-soma(i));

			pos_dir[a[i]].pop_back(); pos_esq[a[i]].pop_back();

			upd(i, -1); upd(esq, -1);
		}
	}

	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 9788 KB Output is correct
2 Correct 12 ms 9720 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 9788 KB Output is correct
2 Correct 12 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 11 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 12 ms 9976 KB Output is correct
8 Correct 12 ms 9696 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 12 ms 9724 KB Output is correct
11 Correct 12 ms 9720 KB Output is correct
12 Correct 10 ms 9720 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9764 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 11 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 12 ms 9720 KB Output is correct
20 Correct 12 ms 9720 KB Output is correct
21 Correct 12 ms 9720 KB Output is correct
22 Correct 14 ms 9720 KB Output is correct
23 Correct 13 ms 9720 KB Output is correct
24 Correct 12 ms 9720 KB Output is correct
25 Correct 12 ms 9720 KB Output is correct
26 Correct 13 ms 9848 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 11 ms 9720 KB Output is correct
30 Correct 13 ms 9720 KB Output is correct
31 Correct 11 ms 9720 KB Output is correct
32 Correct 11 ms 9720 KB Output is correct
33 Correct 11 ms 9720 KB Output is correct
34 Correct 11 ms 9720 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 11 ms 9720 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 9788 KB Output is correct
2 Correct 12 ms 9720 KB Output is correct
3 Correct 11 ms 9720 KB Output is correct
4 Correct 11 ms 9720 KB Output is correct
5 Correct 11 ms 9720 KB Output is correct
6 Correct 13 ms 9720 KB Output is correct
7 Correct 11 ms 9724 KB Output is correct
8 Correct 11 ms 9720 KB Output is correct
9 Correct 13 ms 9720 KB Output is correct
10 Correct 11 ms 9720 KB Output is correct
11 Correct 12 ms 9720 KB Output is correct
12 Correct 12 ms 9720 KB Output is correct
13 Correct 13 ms 9720 KB Output is correct
14 Correct 11 ms 9720 KB Output is correct
15 Correct 13 ms 9720 KB Output is correct
16 Correct 12 ms 9720 KB Output is correct
17 Correct 11 ms 9720 KB Output is correct
18 Correct 11 ms 9848 KB Output is correct
19 Correct 13 ms 9720 KB Output is correct
20 Correct 15 ms 10232 KB Output is correct
21 Correct 15 ms 10232 KB Output is correct
22 Correct 59 ms 13704 KB Output is correct
23 Correct 53 ms 13812 KB Output is correct
24 Correct 59 ms 13724 KB Output is correct
25 Correct 54 ms 14064 KB Output is correct
26 Correct 56 ms 13812 KB Output is correct
27 Correct 51 ms 13812 KB Output is correct
28 Correct 55 ms 14064 KB Output is correct
29 Correct 56 ms 14064 KB Output is correct
30 Correct 59 ms 13936 KB Output is correct
31 Correct 56 ms 13708 KB Output is correct
32 Correct 58 ms 13936 KB Output is correct
33 Correct 52 ms 14064 KB Output is correct
34 Correct 53 ms 13936 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 11 ms 9720 KB Output is correct
37 Correct 53 ms 13936 KB Output is correct
38 Correct 53 ms 13936 KB Output is correct
39 Correct 54 ms 13936 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 9720 KB Output is correct
2 Correct 13 ms 9720 KB Output is correct
3 Correct 12 ms 9720 KB Output is correct
4 Correct 11 ms 9848 KB Output is correct
5 Correct 86 ms 19192 KB Output is correct
6 Correct 75 ms 14328 KB Output is correct
7 Correct 84 ms 19064 KB Output is correct
8 Correct 58 ms 13752 KB Output is correct
9 Correct 94 ms 19064 KB Output is correct
10 Correct 93 ms 15968 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 9788 KB Output is correct
2 Correct 12 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 11 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 12 ms 9976 KB Output is correct
8 Correct 12 ms 9696 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 12 ms 9724 KB Output is correct
11 Correct 12 ms 9720 KB Output is correct
12 Correct 10 ms 9720 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9764 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 11 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 12 ms 9720 KB Output is correct
20 Correct 12 ms 9720 KB Output is correct
21 Correct 12 ms 9720 KB Output is correct
22 Correct 14 ms 9720 KB Output is correct
23 Correct 13 ms 9720 KB Output is correct
24 Correct 12 ms 9720 KB Output is correct
25 Correct 12 ms 9720 KB Output is correct
26 Correct 13 ms 9848 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 11 ms 9720 KB Output is correct
30 Correct 13 ms 9720 KB Output is correct
31 Correct 11 ms 9720 KB Output is correct
32 Correct 11 ms 9720 KB Output is correct
33 Correct 11 ms 9720 KB Output is correct
34 Correct 11 ms 9720 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 11 ms 9720 KB Output is correct
37 Correct 11 ms 9720 KB Output is correct
38 Correct 11 ms 9720 KB Output is correct
39 Correct 11 ms 9720 KB Output is correct
40 Correct 10 ms 9720 KB Output is correct
41 Correct 12 ms 9848 KB Output is correct
42 Correct 13 ms 9848 KB Output is correct
43 Correct 12 ms 9848 KB Output is correct
44 Correct 14 ms 9848 KB Output is correct
45 Correct 11 ms 9848 KB Output is correct
46 Correct 12 ms 9848 KB Output is correct
47 Correct 12 ms 9720 KB Output is correct
48 Correct 13 ms 9720 KB Output is correct
49 Correct 11 ms 9848 KB Output is correct
50 Correct 11 ms 9848 KB Output is correct
51 Correct 11 ms 9720 KB Output is correct
52 Correct 11 ms 9848 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 9788 KB Output is correct
2 Correct 12 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 11 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 12 ms 9976 KB Output is correct
8 Correct 12 ms 9696 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 12 ms 9724 KB Output is correct
11 Correct 12 ms 9720 KB Output is correct
12 Correct 10 ms 9720 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9764 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 11 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 12 ms 9720 KB Output is correct
20 Correct 12 ms 9720 KB Output is correct
21 Correct 12 ms 9720 KB Output is correct
22 Correct 14 ms 9720 KB Output is correct
23 Correct 13 ms 9720 KB Output is correct
24 Correct 12 ms 9720 KB Output is correct
25 Correct 12 ms 9720 KB Output is correct
26 Correct 13 ms 9848 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 11 ms 9720 KB Output is correct
30 Correct 13 ms 9720 KB Output is correct
31 Correct 11 ms 9720 KB Output is correct
32 Correct 11 ms 9720 KB Output is correct
33 Correct 11 ms 9720 KB Output is correct
34 Correct 11 ms 9720 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 11 ms 9720 KB Output is correct
37 Correct 11 ms 9720 KB Output is correct
38 Correct 11 ms 9720 KB Output is correct
39 Correct 11 ms 9720 KB Output is correct
40 Correct 13 ms 9720 KB Output is correct
41 Correct 11 ms 9724 KB Output is correct
42 Correct 11 ms 9720 KB Output is correct
43 Correct 13 ms 9720 KB Output is correct
44 Correct 11 ms 9720 KB Output is correct
45 Correct 12 ms 9720 KB Output is correct
46 Correct 12 ms 9720 KB Output is correct
47 Correct 13 ms 9720 KB Output is correct
48 Correct 11 ms 9720 KB Output is correct
49 Correct 13 ms 9720 KB Output is correct
50 Correct 12 ms 9720 KB Output is correct
51 Correct 11 ms 9720 KB Output is correct
52 Correct 11 ms 9848 KB Output is correct
53 Correct 13 ms 9720 KB Output is correct
54 Correct 15 ms 10232 KB Output is correct
55 Correct 15 ms 10232 KB Output is correct
56 Correct 59 ms 13704 KB Output is correct
57 Correct 53 ms 13812 KB Output is correct
58 Correct 59 ms 13724 KB Output is correct
59 Correct 54 ms 14064 KB Output is correct
60 Correct 56 ms 13812 KB Output is correct
61 Correct 51 ms 13812 KB Output is correct
62 Correct 55 ms 14064 KB Output is correct
63 Correct 56 ms 14064 KB Output is correct
64 Correct 59 ms 13936 KB Output is correct
65 Correct 56 ms 13708 KB Output is correct
66 Correct 58 ms 13936 KB Output is correct
67 Correct 52 ms 14064 KB Output is correct
68 Correct 53 ms 13936 KB Output is correct
69 Correct 10 ms 9720 KB Output is correct
70 Correct 11 ms 9720 KB Output is correct
71 Correct 53 ms 13936 KB Output is correct
72 Correct 53 ms 13936 KB Output is correct
73 Correct 54 ms 13936 KB Output is correct
74 Correct 12 ms 9720 KB Output is correct
75 Correct 13 ms 9720 KB Output is correct
76 Correct 12 ms 9720 KB Output is correct
77 Correct 11 ms 9848 KB Output is correct
78 Correct 86 ms 19192 KB Output is correct
79 Correct 75 ms 14328 KB Output is correct
80 Correct 84 ms 19064 KB Output is correct
81 Correct 58 ms 13752 KB Output is correct
82 Correct 94 ms 19064 KB Output is correct
83 Correct 93 ms 15968 KB Output is correct
84 Correct 11 ms 9720 KB Output is correct
85 Correct 11 ms 9720 KB Output is correct
86 Correct 11 ms 9720 KB Output is correct
87 Correct 10 ms 9720 KB Output is correct
88 Correct 12 ms 9848 KB Output is correct
89 Correct 13 ms 9848 KB Output is correct
90 Correct 12 ms 9848 KB Output is correct
91 Correct 14 ms 9848 KB Output is correct
92 Correct 11 ms 9848 KB Output is correct
93 Correct 12 ms 9848 KB Output is correct
94 Correct 12 ms 9720 KB Output is correct
95 Correct 13 ms 9720 KB Output is correct
96 Correct 11 ms 9848 KB Output is correct
97 Correct 11 ms 9848 KB Output is correct
98 Correct 11 ms 9720 KB Output is correct
99 Correct 11 ms 9848 KB Output is correct
100 Correct 11 ms 9848 KB Output is correct
101 Correct 18 ms 10616 KB Output is correct
102 Correct 17 ms 10232 KB Output is correct
103 Correct 118 ms 19192 KB Output is correct
104 Correct 124 ms 19064 KB Output is correct
105 Correct 143 ms 16376 KB Output is correct
106 Correct 88 ms 19064 KB Output is correct
107 Correct 83 ms 14456 KB Output is correct
108 Correct 88 ms 14840 KB Output is correct
109 Correct 56 ms 14064 KB Output is correct
110 Correct 52 ms 14064 KB Output is correct
111 Correct 119 ms 18424 KB Output is correct
112 Correct 116 ms 17656 KB Output is correct
113 Correct 79 ms 14456 KB Output is correct
114 Correct 86 ms 19064 KB Output is correct
115 Correct 87 ms 19064 KB Output is correct