oj.uz

Submission #722951

# Submission time Handle Problem Language Result Execution time Memory
722951 2023-04-13T06:14:11 Z LittleCube Arranging Shoes (IOI19_shoes) C++14
100 / 100
 67 ms 14380 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define F first
#define S second
using namespace std;

vector<int> p[100005][2];
int N, bit[2000005], a[200005];

void modify(int pos)
{
	for (int i = pos + 1; i <= 2 * N; i += (i & -i))
		bit[i]++;
}

int query(int pos)
{
	int ans = 0;
	for (int i = pos + 1; i; i -= (i & -i))
		ans += bit[i];
	return ans;
}

ll count_swaps(vector<int> s)
{
	N = s.size() / 2;
	ll ans = 0;
	for (int i = 0; i < N * 2; i++)
	{
		if (s[i] < 0)
			p[-s[i]][1].emplace_back(i);
		else
			p[s[i]][0].emplace_back(i);
	}
	for (int i = 0; i < 2 * N; i++)
		a[i] = -1;
	for (int i = 1; i <= N; i++)
		for (int j = 0; j < p[i][0].size(); j++)
		{
			if(p[i][1][j] > p[i][0][j])
				ans += 2, swap(p[i][1][j], p[i][0][j]);
			a[p[i][0][j]] = p[i][1][j];
		}
	
	for (int i = 0; i < 2 * N; i++)
	{
		if(a[i] >= 0)
		{
			modify(a[i]);
			int in = query(i) - query(a[i]);
			//cerr << i << ' ' << a[i] << ' ' << in << '\n';
			ans += 4 * in + (i - a[i] - 1 - 2 * in);
		}
	}
	return ans / 2;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:41:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |   for (int j = 0; j < p[i][0].size(); j++)
      |                   ~~^~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4920 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 4 ms 4948 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5008 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5004 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 5008 KB Output is correct
28 Correct 3 ms 4948 KB Output is correct
29 Correct 3 ms 4948 KB Output is correct
30 Correct 3 ms 4948 KB Output is correct
31 Correct 4 ms 5004 KB Output is correct
32 Correct 3 ms 4948 KB Output is correct
33 Correct 3 ms 4948 KB Output is correct
34 Correct 3 ms 5012 KB Output is correct
35 Correct 4 ms 5004 KB Output is correct
36 Correct 3 ms 5012 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4960 KB Output is correct
20 Correct 6 ms 5460 KB Output is correct
21 Correct 8 ms 5460 KB Output is correct
22 Correct 32 ms 9080 KB Output is correct
23 Correct 27 ms 9024 KB Output is correct
24 Correct 30 ms 9008 KB Output is correct
25 Correct 27 ms 8556 KB Output is correct
26 Correct 32 ms 9104 KB Output is correct
27 Correct 26 ms 9124 KB Output is correct
28 Correct 25 ms 8644 KB Output is correct
29 Correct 26 ms 8624 KB Output is correct
30 Correct 29 ms 8612 KB Output is correct
31 Correct 30 ms 9048 KB Output is correct
32 Correct 30 ms 8588 KB Output is correct
33 Correct 26 ms 8652 KB Output is correct
34 Correct 28 ms 8608 KB Output is correct
35 Correct 3 ms 4948 KB Output is correct
36 Correct 4 ms 4948 KB Output is correct
37 Correct 25 ms 8596 KB Output is correct
38 Correct 26 ms 8600 KB Output is correct
39 Correct 26 ms 8612 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 62 ms 13952 KB Output is correct
6 Correct 35 ms 9124 KB Output is correct
7 Correct 51 ms 13996 KB Output is correct
8 Correct 26 ms 8640 KB Output is correct
9 Correct 55 ms 13920 KB Output is correct
10 Correct 47 ms 10832 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4920 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 4 ms 4948 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5008 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5004 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 5008 KB Output is correct
28 Correct 3 ms 4948 KB Output is correct
29 Correct 3 ms 4948 KB Output is correct
30 Correct 3 ms 4948 KB Output is correct
31 Correct 4 ms 5004 KB Output is correct
32 Correct 3 ms 4948 KB Output is correct
33 Correct 3 ms 4948 KB Output is correct
34 Correct 3 ms 5012 KB Output is correct
35 Correct 4 ms 5004 KB Output is correct
36 Correct 3 ms 5012 KB Output is correct
37 Correct 3 ms 5008 KB Output is correct
38 Correct 3 ms 4948 KB Output is correct
39 Correct 3 ms 4948 KB Output is correct
40 Correct 4 ms 4948 KB Output is correct
41 Correct 4 ms 5076 KB Output is correct
42 Correct 3 ms 5008 KB Output is correct
43 Correct 4 ms 5076 KB Output is correct
44 Correct 4 ms 5016 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 5 ms 5076 KB Output is correct
47 Correct 4 ms 5076 KB Output is correct
48 Correct 3 ms 5012 KB Output is correct
49 Correct 3 ms 5008 KB Output is correct
50 Correct 3 ms 5052 KB Output is correct
51 Correct 3 ms 5012 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4920 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 4 ms 4948 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5008 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5004 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 5008 KB Output is correct
28 Correct 3 ms 4948 KB Output is correct
29 Correct 3 ms 4948 KB Output is correct
30 Correct 3 ms 4948 KB Output is correct
31 Correct 4 ms 5004 KB Output is correct
32 Correct 3 ms 4948 KB Output is correct
33 Correct 3 ms 4948 KB Output is correct
34 Correct 3 ms 5012 KB Output is correct
35 Correct 4 ms 5004 KB Output is correct
36 Correct 3 ms 5012 KB Output is correct
37 Correct 3 ms 4948 KB Output is correct
38 Correct 3 ms 4948 KB Output is correct
39 Correct 3 ms 4948 KB Output is correct
40 Correct 3 ms 4948 KB Output is correct
41 Correct 3 ms 4948 KB Output is correct
42 Correct 3 ms 4948 KB Output is correct
43 Correct 3 ms 4948 KB Output is correct
44 Correct 3 ms 4948 KB Output is correct
45 Correct 3 ms 4948 KB Output is correct
46 Correct 3 ms 4948 KB Output is correct
47 Correct 3 ms 4948 KB Output is correct
48 Correct 4 ms 4948 KB Output is correct
49 Correct 3 ms 4948 KB Output is correct
50 Correct 3 ms 4948 KB Output is correct
51 Correct 3 ms 4948 KB Output is correct
52 Correct 3 ms 4948 KB Output is correct
53 Correct 3 ms 4960 KB Output is correct
54 Correct 6 ms 5460 KB Output is correct
55 Correct 8 ms 5460 KB Output is correct
56 Correct 32 ms 9080 KB Output is correct
57 Correct 27 ms 9024 KB Output is correct
58 Correct 30 ms 9008 KB Output is correct
59 Correct 27 ms 8556 KB Output is correct
60 Correct 32 ms 9104 KB Output is correct
61 Correct 26 ms 9124 KB Output is correct
62 Correct 25 ms 8644 KB Output is correct
63 Correct 26 ms 8624 KB Output is correct
64 Correct 29 ms 8612 KB Output is correct
65 Correct 30 ms 9048 KB Output is correct
66 Correct 30 ms 8588 KB Output is correct
67 Correct 26 ms 8652 KB Output is correct
68 Correct 28 ms 8608 KB Output is correct
69 Correct 3 ms 4948 KB Output is correct
70 Correct 4 ms 4948 KB Output is correct
71 Correct 25 ms 8596 KB Output is correct
72 Correct 26 ms 8600 KB Output is correct
73 Correct 26 ms 8612 KB Output is correct
74 Correct 3 ms 4948 KB Output is correct
75 Correct 3 ms 4948 KB Output is correct
76 Correct 3 ms 4948 KB Output is correct
77 Correct 3 ms 4948 KB Output is correct
78 Correct 62 ms 13952 KB Output is correct
79 Correct 35 ms 9124 KB Output is correct
80 Correct 51 ms 13996 KB Output is correct
81 Correct 26 ms 8640 KB Output is correct
82 Correct 55 ms 13920 KB Output is correct
83 Correct 47 ms 10832 KB Output is correct
84 Correct 3 ms 5008 KB Output is correct
85 Correct 3 ms 4948 KB Output is correct
86 Correct 3 ms 4948 KB Output is correct
87 Correct 4 ms 4948 KB Output is correct
88 Correct 4 ms 5076 KB Output is correct
89 Correct 3 ms 5008 KB Output is correct
90 Correct 4 ms 5076 KB Output is correct
91 Correct 4 ms 5016 KB Output is correct
92 Correct 3 ms 5076 KB Output is correct
93 Correct 5 ms 5076 KB Output is correct
94 Correct 4 ms 5076 KB Output is correct
95 Correct 3 ms 5012 KB Output is correct
96 Correct 3 ms 5008 KB Output is correct
97 Correct 3 ms 5052 KB Output is correct
98 Correct 3 ms 5012 KB Output is correct
99 Correct 3 ms 5076 KB Output is correct
100 Correct 3 ms 5076 KB Output is correct
101 Correct 6 ms 5844 KB Output is correct
102 Correct 6 ms 5460 KB Output is correct
103 Correct 67 ms 14380 KB Output is correct
104 Correct 50 ms 14284 KB Output is correct
105 Correct 60 ms 11632 KB Output is correct
106 Correct 53 ms 13996 KB Output is correct
107 Correct 42 ms 9636 KB Output is correct
108 Correct 39 ms 10048 KB Output is correct
109 Correct 28 ms 8860 KB Output is correct
110 Correct 27 ms 8644 KB Output is correct
111 Correct 46 ms 13220 KB Output is correct
112 Correct 54 ms 12952 KB Output is correct
113 Correct 39 ms 9292 KB Output is correct
114 Correct 63 ms 13968 KB Output is correct
115 Correct 56 ms 13992 KB Output is correct