oj.uz

Submission #151751

# Submission time Handle Problem Language Result Execution time Memory
151751 2019-09-04T14:39:24 Z mieszko11b Arranging Shoes (IOI19_shoes) C++14
100 / 100
 107 ms 15196 KB 
#include "shoes.h"
#include <bits/stdc++.h>

using namespace std;

using ll = long long;

struct fenwickTree {
	int n;
	vector<int> d;
	
	void add(int i, int x) {
		i++;
		for( ; i <= n ; i += (i & (-i)))
			d[i] += x;
	}
	
	int sum(int a) {
		a++;
		int res = 0;
		for( ; a > 0 ; a -= (a & (-a)))
			res += d[a];
		return res;
	}
	
	fenwickTree(int _n) {
		n = _n;
		d.resize(n + 3, 0);
		for(int i = 0 ; i < n ; i++)
			add(i, 1);
	}
};

int n;
fenwickTree FT(200007);
vector<int> pos[200007];
bool del[200007];

long long count_swaps(std::vector<int> s) {
	ll res = 0;
	
	n = s.size() / 2;
	for(int i = 0 ; i < 2 * n ; i++)
		pos[s[i] + n].push_back(i);
	for(int i = 0 ; i< 200007 ; i++)
		reverse(pos[i].begin(), pos[i].end());
		
	for(int i = 0 ; i < 2 * n ; i++) {
		if(del[i])
			continue;
			
		if(s[i] > 0)
			res++;
			
		FT.add(i, -1);
		int other = pos[-s[i] + n].back();
		pos[-s[i] + n].pop_back();
		del[other] = del[i] = 1;
		pos[s[i] + n].pop_back();
		
		FT.add(other, -1);
		res += FT.sum(other);
	}
	
	return res;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 5752 KB Output is correct
2 Correct 10 ms 5752 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 5752 KB Output is correct
2 Correct 10 ms 5752 KB Output is correct
3 Correct 11 ms 5852 KB Output is correct
4 Correct 10 ms 5752 KB Output is correct
5 Correct 11 ms 5796 KB Output is correct
6 Correct 10 ms 5752 KB Output is correct
7 Correct 10 ms 5752 KB Output is correct
8 Correct 10 ms 5880 KB Output is correct
9 Correct 10 ms 5752 KB Output is correct
10 Correct 11 ms 5752 KB Output is correct
11 Correct 12 ms 5752 KB Output is correct
12 Correct 10 ms 5880 KB Output is correct
13 Correct 11 ms 5752 KB Output is correct
14 Correct 11 ms 5880 KB Output is correct
15 Correct 11 ms 5928 KB Output is correct
16 Correct 12 ms 5752 KB Output is correct
17 Correct 12 ms 5756 KB Output is correct
18 Correct 9 ms 5752 KB Output is correct
19 Correct 14 ms 5752 KB Output is correct
20 Correct 12 ms 5880 KB Output is correct
21 Correct 13 ms 5880 KB Output is correct
22 Correct 12 ms 5880 KB Output is correct
23 Correct 13 ms 5880 KB Output is correct
24 Correct 11 ms 5752 KB Output is correct
25 Correct 11 ms 5880 KB Output is correct
26 Correct 10 ms 5880 KB Output is correct
27 Correct 11 ms 5880 KB Output is correct
28 Correct 10 ms 5752 KB Output is correct
29 Correct 10 ms 5752 KB Output is correct
30 Correct 11 ms 5852 KB Output is correct
31 Correct 10 ms 5880 KB Output is correct
32 Correct 23 ms 5752 KB Output is correct
33 Correct 12 ms 5752 KB Output is correct
34 Correct 11 ms 5896 KB Output is correct
35 Correct 11 ms 5880 KB Output is correct
36 Correct 10 ms 5752 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 5752 KB Output is correct
2 Correct 10 ms 5752 KB Output is correct
3 Correct 10 ms 5752 KB Output is correct
4 Correct 10 ms 5880 KB Output is correct
5 Correct 10 ms 5756 KB Output is correct
6 Correct 10 ms 5752 KB Output is correct
7 Correct 10 ms 5752 KB Output is correct
8 Correct 10 ms 5752 KB Output is correct
9 Correct 10 ms 5880 KB Output is correct
10 Correct 11 ms 5880 KB Output is correct
11 Correct 10 ms 5756 KB Output is correct
12 Correct 10 ms 5852 KB Output is correct
13 Correct 10 ms 5880 KB Output is correct
14 Correct 10 ms 5880 KB Output is correct
15 Correct 10 ms 5880 KB Output is correct
16 Correct 11 ms 5880 KB Output is correct
17 Correct 10 ms 5752 KB Output is correct
18 Correct 11 ms 5880 KB Output is correct
19 Correct 10 ms 5880 KB Output is correct
20 Correct 16 ms 6264 KB Output is correct
21 Correct 14 ms 6264 KB Output is correct
22 Correct 47 ms 9752 KB Output is correct
23 Correct 43 ms 9836 KB Output is correct
24 Correct 48 ms 9964 KB Output is correct
25 Correct 50 ms 9688 KB Output is correct
26 Correct 48 ms 9844 KB Output is correct
27 Correct 44 ms 9580 KB Output is correct
28 Correct 45 ms 9840 KB Output is correct
29 Correct 44 ms 9840 KB Output is correct
30 Correct 44 ms 9840 KB Output is correct
31 Correct 47 ms 9728 KB Output is correct
32 Correct 45 ms 9780 KB Output is correct
33 Correct 44 ms 9584 KB Output is correct
34 Correct 44 ms 9840 KB Output is correct
35 Correct 11 ms 5752 KB Output is correct
36 Correct 11 ms 5892 KB Output is correct
37 Correct 45 ms 9840 KB Output is correct
38 Correct 44 ms 9840 KB Output is correct
39 Correct 45 ms 9848 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 5752 KB Output is correct
2 Correct 11 ms 5824 KB Output is correct
3 Correct 12 ms 5752 KB Output is correct
4 Correct 11 ms 5880 KB Output is correct
5 Correct 83 ms 15196 KB Output is correct
6 Correct 66 ms 10232 KB Output is correct
7 Correct 84 ms 15104 KB Output is correct
8 Correct 48 ms 9732 KB Output is correct
9 Correct 76 ms 15100 KB Output is correct
10 Correct 83 ms 12024 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 5752 KB Output is correct
2 Correct 10 ms 5752 KB Output is correct
3 Correct 11 ms 5852 KB Output is correct
4 Correct 10 ms 5752 KB Output is correct
5 Correct 11 ms 5796 KB Output is correct
6 Correct 10 ms 5752 KB Output is correct
7 Correct 10 ms 5752 KB Output is correct
8 Correct 10 ms 5880 KB Output is correct
9 Correct 10 ms 5752 KB Output is correct
10 Correct 11 ms 5752 KB Output is correct
11 Correct 12 ms 5752 KB Output is correct
12 Correct 10 ms 5880 KB Output is correct
13 Correct 11 ms 5752 KB Output is correct
14 Correct 11 ms 5880 KB Output is correct
15 Correct 11 ms 5928 KB Output is correct
16 Correct 12 ms 5752 KB Output is correct
17 Correct 12 ms 5756 KB Output is correct
18 Correct 9 ms 5752 KB Output is correct
19 Correct 14 ms 5752 KB Output is correct
20 Correct 12 ms 5880 KB Output is correct
21 Correct 13 ms 5880 KB Output is correct
22 Correct 12 ms 5880 KB Output is correct
23 Correct 13 ms 5880 KB Output is correct
24 Correct 11 ms 5752 KB Output is correct
25 Correct 11 ms 5880 KB Output is correct
26 Correct 10 ms 5880 KB Output is correct
27 Correct 11 ms 5880 KB Output is correct
28 Correct 10 ms 5752 KB Output is correct
29 Correct 10 ms 5752 KB Output is correct
30 Correct 11 ms 5852 KB Output is correct
31 Correct 10 ms 5880 KB Output is correct
32 Correct 23 ms 5752 KB Output is correct
33 Correct 12 ms 5752 KB Output is correct
34 Correct 11 ms 5896 KB Output is correct
35 Correct 11 ms 5880 KB Output is correct
36 Correct 10 ms 5752 KB Output is correct
37 Correct 10 ms 5752 KB Output is correct
38 Correct 11 ms 5752 KB Output is correct
39 Correct 11 ms 5752 KB Output is correct
40 Correct 11 ms 5752 KB Output is correct
41 Correct 11 ms 5884 KB Output is correct
42 Correct 11 ms 5880 KB Output is correct
43 Correct 11 ms 5852 KB Output is correct
44 Correct 11 ms 5880 KB Output is correct
45 Correct 11 ms 5908 KB Output is correct
46 Correct 11 ms 5880 KB Output is correct
47 Correct 11 ms 5880 KB Output is correct
48 Correct 12 ms 5880 KB Output is correct
49 Correct 11 ms 5880 KB Output is correct
50 Correct 12 ms 5880 KB Output is correct
51 Correct 11 ms 5880 KB Output is correct
52 Correct 11 ms 5880 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 5752 KB Output is correct
2 Correct 10 ms 5752 KB Output is correct
3 Correct 11 ms 5852 KB Output is correct
4 Correct 10 ms 5752 KB Output is correct
5 Correct 11 ms 5796 KB Output is correct
6 Correct 10 ms 5752 KB Output is correct
7 Correct 10 ms 5752 KB Output is correct
8 Correct 10 ms 5880 KB Output is correct
9 Correct 10 ms 5752 KB Output is correct
10 Correct 11 ms 5752 KB Output is correct
11 Correct 12 ms 5752 KB Output is correct
12 Correct 10 ms 5880 KB Output is correct
13 Correct 11 ms 5752 KB Output is correct
14 Correct 11 ms 5880 KB Output is correct
15 Correct 11 ms 5928 KB Output is correct
16 Correct 12 ms 5752 KB Output is correct
17 Correct 12 ms 5756 KB Output is correct
18 Correct 9 ms 5752 KB Output is correct
19 Correct 14 ms 5752 KB Output is correct
20 Correct 12 ms 5880 KB Output is correct
21 Correct 13 ms 5880 KB Output is correct
22 Correct 12 ms 5880 KB Output is correct
23 Correct 13 ms 5880 KB Output is correct
24 Correct 11 ms 5752 KB Output is correct
25 Correct 11 ms 5880 KB Output is correct
26 Correct 10 ms 5880 KB Output is correct
27 Correct 11 ms 5880 KB Output is correct
28 Correct 10 ms 5752 KB Output is correct
29 Correct 10 ms 5752 KB Output is correct
30 Correct 11 ms 5852 KB Output is correct
31 Correct 10 ms 5880 KB Output is correct
32 Correct 23 ms 5752 KB Output is correct
33 Correct 12 ms 5752 KB Output is correct
34 Correct 11 ms 5896 KB Output is correct
35 Correct 11 ms 5880 KB Output is correct
36 Correct 10 ms 5752 KB Output is correct
37 Correct 10 ms 5752 KB Output is correct
38 Correct 10 ms 5880 KB Output is correct
39 Correct 10 ms 5756 KB Output is correct
40 Correct 10 ms 5752 KB Output is correct
41 Correct 10 ms 5752 KB Output is correct
42 Correct 10 ms 5752 KB Output is correct
43 Correct 10 ms 5880 KB Output is correct
44 Correct 11 ms 5880 KB Output is correct
45 Correct 10 ms 5756 KB Output is correct
46 Correct 10 ms 5852 KB Output is correct
47 Correct 10 ms 5880 KB Output is correct
48 Correct 10 ms 5880 KB Output is correct
49 Correct 10 ms 5880 KB Output is correct
50 Correct 11 ms 5880 KB Output is correct
51 Correct 10 ms 5752 KB Output is correct
52 Correct 11 ms 5880 KB Output is correct
53 Correct 10 ms 5880 KB Output is correct
54 Correct 16 ms 6264 KB Output is correct
55 Correct 14 ms 6264 KB Output is correct
56 Correct 47 ms 9752 KB Output is correct
57 Correct 43 ms 9836 KB Output is correct
58 Correct 48 ms 9964 KB Output is correct
59 Correct 50 ms 9688 KB Output is correct
60 Correct 48 ms 9844 KB Output is correct
61 Correct 44 ms 9580 KB Output is correct
62 Correct 45 ms 9840 KB Output is correct
63 Correct 44 ms 9840 KB Output is correct
64 Correct 44 ms 9840 KB Output is correct
65 Correct 47 ms 9728 KB Output is correct
66 Correct 45 ms 9780 KB Output is correct
67 Correct 44 ms 9584 KB Output is correct
68 Correct 44 ms 9840 KB Output is correct
69 Correct 11 ms 5752 KB Output is correct
70 Correct 11 ms 5892 KB Output is correct
71 Correct 45 ms 9840 KB Output is correct
72 Correct 44 ms 9840 KB Output is correct
73 Correct 45 ms 9848 KB Output is correct
74 Correct 10 ms 5752 KB Output is correct
75 Correct 11 ms 5824 KB Output is correct
76 Correct 12 ms 5752 KB Output is correct
77 Correct 11 ms 5880 KB Output is correct
78 Correct 83 ms 15196 KB Output is correct
79 Correct 66 ms 10232 KB Output is correct
80 Correct 84 ms 15104 KB Output is correct
81 Correct 48 ms 9732 KB Output is correct
82 Correct 76 ms 15100 KB Output is correct
83 Correct 83 ms 12024 KB Output is correct
84 Correct 10 ms 5752 KB Output is correct
85 Correct 11 ms 5752 KB Output is correct
86 Correct 11 ms 5752 KB Output is correct
87 Correct 11 ms 5752 KB Output is correct
88 Correct 11 ms 5884 KB Output is correct
89 Correct 11 ms 5880 KB Output is correct
90 Correct 11 ms 5852 KB Output is correct
91 Correct 11 ms 5880 KB Output is correct
92 Correct 11 ms 5908 KB Output is correct
93 Correct 11 ms 5880 KB Output is correct
94 Correct 11 ms 5880 KB Output is correct
95 Correct 12 ms 5880 KB Output is correct
96 Correct 11 ms 5880 KB Output is correct
97 Correct 12 ms 5880 KB Output is correct
98 Correct 11 ms 5880 KB Output is correct
99 Correct 11 ms 5880 KB Output is correct
100 Correct 11 ms 5880 KB Output is correct
101 Correct 17 ms 6648 KB Output is correct
102 Correct 17 ms 6264 KB Output is correct
103 Correct 105 ms 15096 KB Output is correct
104 Correct 97 ms 15112 KB Output is correct
105 Correct 105 ms 12324 KB Output is correct
106 Correct 88 ms 15096 KB Output is correct
107 Correct 80 ms 10576 KB Output is correct
108 Correct 77 ms 10872 KB Output is correct
109 Correct 47 ms 10068 KB Output is correct
110 Correct 45 ms 9968 KB Output is correct
111 Correct 90 ms 14456 KB Output is correct
112 Correct 107 ms 13880 KB Output is correct
113 Correct 72 ms 10468 KB Output is correct
114 Correct 90 ms 15096 KB Output is correct
115 Correct 84 ms 15104 KB Output is correct