oj.uz

답안 #251904

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
251904 2020-07-23T04:47:35 Z akat Arranging Shoes (IOI19_shoes) C++14
100 / 100
 88 ms 14884 KB 
#include "shoes.h"
using namespace std;
template<typename T>
struct BIT
{
	vector<T>it;
	BIT(int n,T s)
	{
		it = vector<T>(n,s);
	}
	void comb(T &x,T &y)
	{
		x += y;
	}
	void update(int x,T u)
	{
		while(x)
		{
			comb(it[x],u);
			x -= x&(-x);
		}
	}
	T query(int x)
	{
		T ans = it[0];
		while(x < (int)it.size())
		{
			comb(ans,it[x]);
			x += x&(-x);
		}
		return ans;
	}
};
long long count_swaps(vector<int> s)
{
	int n = s.size()/2, i;
	BIT<int>T(n * 2 + 1, 0);
	vector<vector<int>>memo(n * 2 + 1);
	for(i = n * 2 - 1; i >= 0; i--)
		memo[s[i] + n].push_back(i);
	long long ans = 0;
	for(i = 0; i < n * 2; i++)
	{
		int x = s[i] + n;
		int y = -s[i] + n;
		if(memo[x].size()==0 || memo[x].back() != i)continue;
		int z = memo[y].back();
		ans += z - i - T.query(i+1) + T.query(z + 1);
		if(s[i] < 0) ans --;
		T.update(z + 1,1);
		memo[x].pop_back();
		memo[y].pop_back();
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 0 ms 256 KB Output is correct
21 Correct 0 ms 256 KB Output is correct
22 Correct 0 ms 256 KB Output is correct
23 Correct 0 ms 256 KB Output is correct
24 Correct 0 ms 256 KB Output is correct
25 Correct 0 ms 256 KB Output is correct
26 Correct 0 ms 256 KB Output is correct
27 Correct 0 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 256 KB Output is correct
32 Correct 0 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 4 ms 1280 KB Output is correct
21 Correct 4 ms 1280 KB Output is correct
22 Correct 39 ms 8704 KB Output is correct
23 Correct 38 ms 8816 KB Output is correct
24 Correct 40 ms 8604 KB Output is correct
25 Correct 37 ms 8944 KB Output is correct
26 Correct 43 ms 9588 KB Output is correct
27 Correct 36 ms 9460 KB Output is correct
28 Correct 37 ms 9840 KB Output is correct
29 Correct 36 ms 9840 KB Output is correct
30 Correct 37 ms 9840 KB Output is correct
31 Correct 40 ms 9488 KB Output is correct
32 Correct 44 ms 9824 KB Output is correct
33 Correct 35 ms 9592 KB Output is correct
34 Correct 37 ms 9840 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct
37 Correct 38 ms 9848 KB Output is correct
38 Correct 36 ms 9840 KB Output is correct
39 Correct 36 ms 9840 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 78 ms 13944 KB Output is correct
6 Correct 53 ms 10104 KB Output is correct
7 Correct 73 ms 14840 KB Output is correct
8 Correct 40 ms 9528 KB Output is correct
9 Correct 69 ms 14884 KB Output is correct
10 Correct 70 ms 11768 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 0 ms 256 KB Output is correct
21 Correct 0 ms 256 KB Output is correct
22 Correct 0 ms 256 KB Output is correct
23 Correct 0 ms 256 KB Output is correct
24 Correct 0 ms 256 KB Output is correct
25 Correct 0 ms 256 KB Output is correct
26 Correct 0 ms 256 KB Output is correct
27 Correct 0 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 256 KB Output is correct
32 Correct 0 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct
37 Correct 0 ms 256 KB Output is correct
38 Correct 0 ms 256 KB Output is correct
39 Correct 0 ms 256 KB Output is correct
40 Correct 0 ms 384 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 1 ms 384 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 384 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 0 ms 256 KB Output is correct
21 Correct 0 ms 256 KB Output is correct
22 Correct 0 ms 256 KB Output is correct
23 Correct 0 ms 256 KB Output is correct
24 Correct 0 ms 256 KB Output is correct
25 Correct 0 ms 256 KB Output is correct
26 Correct 0 ms 256 KB Output is correct
27 Correct 0 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 256 KB Output is correct
32 Correct 0 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct
37 Correct 0 ms 256 KB Output is correct
38 Correct 0 ms 256 KB Output is correct
39 Correct 0 ms 256 KB Output is correct
40 Correct 1 ms 256 KB Output is correct
41 Correct 0 ms 256 KB Output is correct
42 Correct 0 ms 256 KB Output is correct
43 Correct 1 ms 256 KB Output is correct
44 Correct 1 ms 256 KB Output is correct
45 Correct 0 ms 256 KB Output is correct
46 Correct 0 ms 256 KB Output is correct
47 Correct 0 ms 256 KB Output is correct
48 Correct 0 ms 256 KB Output is correct
49 Correct 0 ms 256 KB Output is correct
50 Correct 0 ms 256 KB Output is correct
51 Correct 0 ms 256 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 384 KB Output is correct
54 Correct 4 ms 1280 KB Output is correct
55 Correct 4 ms 1280 KB Output is correct
56 Correct 39 ms 8704 KB Output is correct
57 Correct 38 ms 8816 KB Output is correct
58 Correct 40 ms 8604 KB Output is correct
59 Correct 37 ms 8944 KB Output is correct
60 Correct 43 ms 9588 KB Output is correct
61 Correct 36 ms 9460 KB Output is correct
62 Correct 37 ms 9840 KB Output is correct
63 Correct 36 ms 9840 KB Output is correct
64 Correct 37 ms 9840 KB Output is correct
65 Correct 40 ms 9488 KB Output is correct
66 Correct 44 ms 9824 KB Output is correct
67 Correct 35 ms 9592 KB Output is correct
68 Correct 37 ms 9840 KB Output is correct
69 Correct 0 ms 256 KB Output is correct
70 Correct 0 ms 256 KB Output is correct
71 Correct 38 ms 9848 KB Output is correct
72 Correct 36 ms 9840 KB Output is correct
73 Correct 36 ms 9840 KB Output is correct
74 Correct 0 ms 256 KB Output is correct
75 Correct 0 ms 256 KB Output is correct
76 Correct 0 ms 256 KB Output is correct
77 Correct 1 ms 256 KB Output is correct
78 Correct 78 ms 13944 KB Output is correct
79 Correct 53 ms 10104 KB Output is correct
80 Correct 73 ms 14840 KB Output is correct
81 Correct 40 ms 9528 KB Output is correct
82 Correct 69 ms 14884 KB Output is correct
83 Correct 70 ms 11768 KB Output is correct
84 Correct 0 ms 256 KB Output is correct
85 Correct 0 ms 256 KB Output is correct
86 Correct 0 ms 256 KB Output is correct
87 Correct 0 ms 384 KB Output is correct
88 Correct 1 ms 384 KB Output is correct
89 Correct 1 ms 384 KB Output is correct
90 Correct 1 ms 384 KB Output is correct
91 Correct 1 ms 384 KB Output is correct
92 Correct 1 ms 384 KB Output is correct
93 Correct 1 ms 384 KB Output is correct
94 Correct 1 ms 384 KB Output is correct
95 Correct 1 ms 384 KB Output is correct
96 Correct 1 ms 384 KB Output is correct
97 Correct 1 ms 384 KB Output is correct
98 Correct 1 ms 384 KB Output is correct
99 Correct 1 ms 384 KB Output is correct
100 Correct 1 ms 384 KB Output is correct
101 Correct 6 ms 1664 KB Output is correct
102 Correct 6 ms 1280 KB Output is correct
103 Correct 88 ms 14840 KB Output is correct
104 Correct 77 ms 14840 KB Output is correct
105 Correct 81 ms 12152 KB Output is correct
106 Correct 69 ms 14840 KB Output is correct
107 Correct 58 ms 10232 KB Output is correct
108 Correct 60 ms 10616 KB Output is correct
109 Correct 37 ms 9848 KB Output is correct
110 Correct 36 ms 9840 KB Output is correct
111 Correct 74 ms 14200 KB Output is correct
112 Correct 83 ms 13432 KB Output is correct
113 Correct 55 ms 10232 KB Output is correct
114 Correct 67 ms 14840 KB Output is correct
115 Correct 68 ms 14840 KB Output is correct