oj.uz

Submission #143415

# Submission time Handle Problem Language Result Execution time Memory
143415 2019-08-14T00:29:47 Z gs14004 Arranging Shoes (IOI19_shoes) C++17
100 / 100
 97 ms 11508 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#define sz(v) ((int)(v).size())
using namespace std;
using lint = long long;
using pi = pair<int, int>;
const int MAXN = 200005;

struct bit{
	int tree[MAXN];
	void add(int x, int v){
		for(int i=x; i<MAXN; i+=i&-i) tree[i] += v;
	}
	int query(int x){
		int ret = 0;
		for(int i=x; i; i-=i&-i) ret += tree[i];
		return ret;
	}
}bit;


lint count_swaps(std::vector<int> s) {
	int n = sz(s) / 2;
	lint ret = 0;
	vector<pi> v;
	vector<pi> ord[MAXN];
	for(int i=0; i<sz(s); i++){
		ord[abs(s[i])].emplace_back(s[i], i);
	}
	for(int i=1; i<=n; i++){
		sort(ord[i].begin(), ord[i].end());
		for(int j=0; j<sz(ord[i])/2; j++){
			int l = ord[i][j].second;
			int r = ord[i][j + sz(ord[i])/2].second;
			if(l > r){
				swap(l, r);
				ret++;
			}
			v.emplace_back(l + 1, r + 1);
		}
	}
	for(int i=1; i<=2*n; i++) bit.add(i, 1);
	sort(v.begin(), v.end());
	for(auto &i : v){
		ret += bit.query(i.second - 1) - bit.query(i.first);
		bit.add(i.first, -1);
		bit.add(i.second, -1);
	}
	return ret;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 KB Output is correct
3 Correct 6 ms 5112 KB Output is correct
4 Correct 6 ms 4984 KB Output is correct
5 Correct 6 ms 5112 KB Output is correct
6 Correct 6 ms 5112 KB Output is correct
7 Correct 6 ms 5032 KB Output is correct
8 Correct 7 ms 5112 KB Output is correct
9 Correct 6 ms 4984 KB Output is correct
10 Correct 6 ms 5112 KB Output is correct
11 Correct 6 ms 5112 KB Output is correct
12 Correct 6 ms 4988 KB Output is correct
13 Correct 6 ms 4988 KB Output is correct
14 Correct 7 ms 4984 KB Output is correct
15 Correct 6 ms 5112 KB Output is correct
16 Correct 6 ms 5112 KB Output is correct
17 Correct 6 ms 5112 KB Output is correct
18 Correct 6 ms 4984 KB Output is correct
19 Correct 6 ms 4984 KB Output is correct
20 Correct 6 ms 5080 KB Output is correct
21 Correct 6 ms 5112 KB Output is correct
22 Correct 6 ms 4984 KB Output is correct
23 Correct 6 ms 4984 KB Output is correct
24 Correct 6 ms 5112 KB Output is correct
25 Correct 6 ms 4984 KB Output is correct
26 Correct 6 ms 4984 KB Output is correct
27 Correct 6 ms 4984 KB Output is correct
28 Correct 6 ms 4984 KB Output is correct
29 Correct 6 ms 4984 KB Output is correct
30 Correct 6 ms 4984 KB Output is correct
31 Correct 6 ms 5112 KB Output is correct
32 Correct 6 ms 5112 KB Output is correct
33 Correct 6 ms 5112 KB Output is correct
34 Correct 6 ms 5112 KB Output is correct
35 Correct 6 ms 4984 KB Output is correct
36 Correct 6 ms 4984 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 KB Output is correct
3 Correct 6 ms 5112 KB Output is correct
4 Correct 7 ms 5112 KB Output is correct
5 Correct 6 ms 5112 KB Output is correct
6 Correct 6 ms 5112 KB Output is correct
7 Correct 6 ms 4984 KB Output is correct
8 Correct 6 ms 5112 KB Output is correct
9 Correct 6 ms 5112 KB Output is correct
10 Correct 6 ms 4984 KB Output is correct
11 Correct 12 ms 5084 KB Output is correct
12 Correct 6 ms 5116 KB Output is correct
13 Correct 6 ms 4984 KB Output is correct
14 Correct 6 ms 4984 KB Output is correct
15 Correct 6 ms 5112 KB Output is correct
16 Correct 6 ms 5112 KB Output is correct
17 Correct 6 ms 4984 KB Output is correct
18 Correct 7 ms 5116 KB Output is correct
19 Correct 7 ms 5112 KB Output is correct
20 Correct 12 ms 5620 KB Output is correct
21 Correct 12 ms 5748 KB Output is correct
22 Correct 66 ms 10728 KB Output is correct
23 Correct 58 ms 10728 KB Output is correct
24 Correct 70 ms 10856 KB Output is correct
25 Correct 53 ms 10700 KB Output is correct
26 Correct 67 ms 10728 KB Output is correct
27 Correct 55 ms 10732 KB Output is correct
28 Correct 54 ms 10832 KB Output is correct
29 Correct 54 ms 10724 KB Output is correct
30 Correct 54 ms 10728 KB Output is correct
31 Correct 67 ms 10856 KB Output is correct
32 Correct 60 ms 10728 KB Output is correct
33 Correct 53 ms 10728 KB Output is correct
34 Correct 54 ms 10728 KB Output is correct
35 Correct 6 ms 5032 KB Output is correct
36 Correct 6 ms 5112 KB Output is correct
37 Correct 56 ms 10732 KB Output is correct
38 Correct 56 ms 10728 KB Output is correct
39 Correct 56 ms 10728 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4988 KB Output is correct
2 Correct 6 ms 5084 KB Output is correct
3 Correct 6 ms 4984 KB Output is correct
4 Correct 6 ms 5112 KB Output is correct
5 Correct 85 ms 11380 KB Output is correct
6 Correct 73 ms 10740 KB Output is correct
7 Correct 85 ms 11436 KB Output is correct
8 Correct 62 ms 10916 KB Output is correct
9 Correct 88 ms 11376 KB Output is correct
10 Correct 87 ms 11116 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 KB Output is correct
3 Correct 6 ms 5112 KB Output is correct
4 Correct 6 ms 4984 KB Output is correct
5 Correct 6 ms 5112 KB Output is correct
6 Correct 6 ms 5112 KB Output is correct
7 Correct 6 ms 5032 KB Output is correct
8 Correct 7 ms 5112 KB Output is correct
9 Correct 6 ms 4984 KB Output is correct
10 Correct 6 ms 5112 KB Output is correct
11 Correct 6 ms 5112 KB Output is correct
12 Correct 6 ms 4988 KB Output is correct
13 Correct 6 ms 4988 KB Output is correct
14 Correct 7 ms 4984 KB Output is correct
15 Correct 6 ms 5112 KB Output is correct
16 Correct 6 ms 5112 KB Output is correct
17 Correct 6 ms 5112 KB Output is correct
18 Correct 6 ms 4984 KB Output is correct
19 Correct 6 ms 4984 KB Output is correct
20 Correct 6 ms 5080 KB Output is correct
21 Correct 6 ms 5112 KB Output is correct
22 Correct 6 ms 4984 KB Output is correct
23 Correct 6 ms 4984 KB Output is correct
24 Correct 6 ms 5112 KB Output is correct
25 Correct 6 ms 4984 KB Output is correct
26 Correct 6 ms 4984 KB Output is correct
27 Correct 6 ms 4984 KB Output is correct
28 Correct 6 ms 4984 KB Output is correct
29 Correct 6 ms 4984 KB Output is correct
30 Correct 6 ms 4984 KB Output is correct
31 Correct 6 ms 5112 KB Output is correct
32 Correct 6 ms 5112 KB Output is correct
33 Correct 6 ms 5112 KB Output is correct
34 Correct 6 ms 5112 KB Output is correct
35 Correct 6 ms 4984 KB Output is correct
36 Correct 6 ms 4984 KB Output is correct
37 Correct 6 ms 4984 KB Output is correct
38 Correct 7 ms 5112 KB Output is correct
39 Correct 6 ms 5112 KB Output is correct
40 Correct 6 ms 5108 KB Output is correct
41 Correct 7 ms 5112 KB Output is correct
42 Correct 7 ms 5112 KB Output is correct
43 Correct 7 ms 5144 KB Output is correct
44 Correct 7 ms 5116 KB Output is correct
45 Correct 7 ms 5112 KB Output is correct
46 Correct 6 ms 5116 KB Output is correct
47 Correct 7 ms 5112 KB Output is correct
48 Correct 7 ms 5112 KB Output is correct
49 Correct 7 ms 5112 KB Output is correct
50 Correct 7 ms 5112 KB Output is correct
51 Correct 7 ms 5008 KB Output is correct
52 Correct 7 ms 5112 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 KB Output is correct
3 Correct 6 ms 5112 KB Output is correct
4 Correct 6 ms 4984 KB Output is correct
5 Correct 6 ms 5112 KB Output is correct
6 Correct 6 ms 5112 KB Output is correct
7 Correct 6 ms 5032 KB Output is correct
8 Correct 7 ms 5112 KB Output is correct
9 Correct 6 ms 4984 KB Output is correct
10 Correct 6 ms 5112 KB Output is correct
11 Correct 6 ms 5112 KB Output is correct
12 Correct 6 ms 4988 KB Output is correct
13 Correct 6 ms 4988 KB Output is correct
14 Correct 7 ms 4984 KB Output is correct
15 Correct 6 ms 5112 KB Output is correct
16 Correct 6 ms 5112 KB Output is correct
17 Correct 6 ms 5112 KB Output is correct
18 Correct 6 ms 4984 KB Output is correct
19 Correct 6 ms 4984 KB Output is correct
20 Correct 6 ms 5080 KB Output is correct
21 Correct 6 ms 5112 KB Output is correct
22 Correct 6 ms 4984 KB Output is correct
23 Correct 6 ms 4984 KB Output is correct
24 Correct 6 ms 5112 KB Output is correct
25 Correct 6 ms 4984 KB Output is correct
26 Correct 6 ms 4984 KB Output is correct
27 Correct 6 ms 4984 KB Output is correct
28 Correct 6 ms 4984 KB Output is correct
29 Correct 6 ms 4984 KB Output is correct
30 Correct 6 ms 4984 KB Output is correct
31 Correct 6 ms 5112 KB Output is correct
32 Correct 6 ms 5112 KB Output is correct
33 Correct 6 ms 5112 KB Output is correct
34 Correct 6 ms 5112 KB Output is correct
35 Correct 6 ms 4984 KB Output is correct
36 Correct 6 ms 4984 KB Output is correct
37 Correct 6 ms 5112 KB Output is correct
38 Correct 7 ms 5112 KB Output is correct
39 Correct 6 ms 5112 KB Output is correct
40 Correct 6 ms 5112 KB Output is correct
41 Correct 6 ms 4984 KB Output is correct
42 Correct 6 ms 5112 KB Output is correct
43 Correct 6 ms 5112 KB Output is correct
44 Correct 6 ms 4984 KB Output is correct
45 Correct 12 ms 5084 KB Output is correct
46 Correct 6 ms 5116 KB Output is correct
47 Correct 6 ms 4984 KB Output is correct
48 Correct 6 ms 4984 KB Output is correct
49 Correct 6 ms 5112 KB Output is correct
50 Correct 6 ms 5112 KB Output is correct
51 Correct 6 ms 4984 KB Output is correct
52 Correct 7 ms 5116 KB Output is correct
53 Correct 7 ms 5112 KB Output is correct
54 Correct 12 ms 5620 KB Output is correct
55 Correct 12 ms 5748 KB Output is correct
56 Correct 66 ms 10728 KB Output is correct
57 Correct 58 ms 10728 KB Output is correct
58 Correct 70 ms 10856 KB Output is correct
59 Correct 53 ms 10700 KB Output is correct
60 Correct 67 ms 10728 KB Output is correct
61 Correct 55 ms 10732 KB Output is correct
62 Correct 54 ms 10832 KB Output is correct
63 Correct 54 ms 10724 KB Output is correct
64 Correct 54 ms 10728 KB Output is correct
65 Correct 67 ms 10856 KB Output is correct
66 Correct 60 ms 10728 KB Output is correct
67 Correct 53 ms 10728 KB Output is correct
68 Correct 54 ms 10728 KB Output is correct
69 Correct 6 ms 5032 KB Output is correct
70 Correct 6 ms 5112 KB Output is correct
71 Correct 56 ms 10732 KB Output is correct
72 Correct 56 ms 10728 KB Output is correct
73 Correct 56 ms 10728 KB Output is correct
74 Correct 6 ms 4988 KB Output is correct
75 Correct 6 ms 5084 KB Output is correct
76 Correct 6 ms 4984 KB Output is correct
77 Correct 6 ms 5112 KB Output is correct
78 Correct 85 ms 11380 KB Output is correct
79 Correct 73 ms 10740 KB Output is correct
80 Correct 85 ms 11436 KB Output is correct
81 Correct 62 ms 10916 KB Output is correct
82 Correct 88 ms 11376 KB Output is correct
83 Correct 87 ms 11116 KB Output is correct
84 Correct 6 ms 4984 KB Output is correct
85 Correct 7 ms 5112 KB Output is correct
86 Correct 6 ms 5112 KB Output is correct
87 Correct 6 ms 5108 KB Output is correct
88 Correct 7 ms 5112 KB Output is correct
89 Correct 7 ms 5112 KB Output is correct
90 Correct 7 ms 5144 KB Output is correct
91 Correct 7 ms 5116 KB Output is correct
92 Correct 7 ms 5112 KB Output is correct
93 Correct 6 ms 5116 KB Output is correct
94 Correct 7 ms 5112 KB Output is correct
95 Correct 7 ms 5112 KB Output is correct
96 Correct 7 ms 5112 KB Output is correct
97 Correct 7 ms 5112 KB Output is correct
98 Correct 7 ms 5008 KB Output is correct
99 Correct 7 ms 5112 KB Output is correct
100 Correct 7 ms 5112 KB Output is correct
101 Correct 13 ms 5756 KB Output is correct
102 Correct 15 ms 5752 KB Output is correct
103 Correct 97 ms 11376 KB Output is correct
104 Correct 80 ms 11376 KB Output is correct
105 Correct 89 ms 10988 KB Output is correct
106 Correct 87 ms 11376 KB Output is correct
107 Correct 75 ms 10860 KB Output is correct
108 Correct 73 ms 10844 KB Output is correct
109 Correct 64 ms 10732 KB Output is correct
110 Correct 54 ms 10728 KB Output is correct
111 Correct 91 ms 11508 KB Output is correct
112 Correct 93 ms 11500 KB Output is correct
113 Correct 75 ms 10860 KB Output is correct
114 Correct 86 ms 11372 KB Output is correct
115 Correct 85 ms 11388 KB Output is correct