oj.uz

Submission #279678

# Submission time Handle Problem Language Result Execution time Memory
279678 2020-08-22T09:49:17 Z nilo_y Arranging Shoes (IOI19_shoes) C++14
100 / 100
 115 ms 12784 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 3 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 3 ms 4992 KB Output is correct
12 Correct 3 ms 5120 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 3 ms 4992 KB Output is correct
17 Correct 4 ms 5120 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 3 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 4 ms 5120 KB Output is correct
25 Correct 4 ms 4992 KB Output is correct
26 Correct 4 ms 4992 KB Output is correct
27 Correct 3 ms 4992 KB Output is correct
28 Correct 4 ms 4992 KB Output is correct
29 Correct 3 ms 4992 KB Output is correct
30 Correct 3 ms 4992 KB Output is correct
31 Correct 3 ms 4992 KB Output is correct
32 Correct 3 ms 4992 KB Output is correct
33 Correct 3 ms 4992 KB Output is correct
34 Correct 3 ms 4992 KB Output is correct
35 Correct 3 ms 4992 KB Output is correct
36 Correct 3 ms 4992 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 4992 KB Output is correct
8 Correct 3 ms 4992 KB Output is correct
9 Correct 3 ms 4992 KB Output is correct
10 Correct 3 ms 4992 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 3 ms 4992 KB Output is correct
15 Correct 3 ms 4992 KB Output is correct
16 Correct 3 ms 4992 KB Output is correct
17 Correct 4 ms 5120 KB Output is correct
18 Correct 4 ms 5120 KB Output is correct
19 Correct 4 ms 5120 KB Output is correct
20 Correct 9 ms 5756 KB Output is correct
21 Correct 9 ms 5756 KB Output is correct
22 Correct 64 ms 12008 KB Output is correct
23 Correct 58 ms 12008 KB Output is correct
24 Correct 68 ms 12008 KB Output is correct
25 Correct 50 ms 11880 KB Output is correct
26 Correct 65 ms 12008 KB Output is correct
27 Correct 55 ms 11880 KB Output is correct
28 Correct 52 ms 12008 KB Output is correct
29 Correct 53 ms 12136 KB Output is correct
30 Correct 51 ms 12008 KB Output is correct
31 Correct 65 ms 12008 KB Output is correct
32 Correct 53 ms 12008 KB Output is correct
33 Correct 53 ms 11856 KB Output is correct
34 Correct 54 ms 12008 KB Output is correct
35 Correct 3 ms 4992 KB Output is correct
36 Correct 3 ms 4992 KB Output is correct
37 Correct 61 ms 12008 KB Output is correct
38 Correct 62 ms 12008 KB Output is correct
39 Correct 68 ms 12008 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 88 ms 12656 KB Output is correct
6 Correct 71 ms 12020 KB Output is correct
7 Correct 101 ms 12656 KB Output is correct
8 Correct 62 ms 12200 KB Output is correct
9 Correct 93 ms 12656 KB Output is correct
10 Correct 102 ms 12396 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 3 ms 4992 KB Output is correct
12 Correct 3 ms 5120 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 3 ms 4992 KB Output is correct
17 Correct 4 ms 5120 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 3 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 4 ms 5120 KB Output is correct
25 Correct 4 ms 4992 KB Output is correct
26 Correct 4 ms 4992 KB Output is correct
27 Correct 3 ms 4992 KB Output is correct
28 Correct 4 ms 4992 KB Output is correct
29 Correct 3 ms 4992 KB Output is correct
30 Correct 3 ms 4992 KB Output is correct
31 Correct 3 ms 4992 KB Output is correct
32 Correct 3 ms 4992 KB Output is correct
33 Correct 3 ms 4992 KB Output is correct
34 Correct 3 ms 4992 KB Output is correct
35 Correct 3 ms 4992 KB Output is correct
36 Correct 3 ms 4992 KB Output is correct
37 Correct 5 ms 4992 KB Output is correct
38 Correct 3 ms 4992 KB Output is correct
39 Correct 4 ms 4992 KB Output is correct
40 Correct 4 ms 5120 KB Output is correct
41 Correct 4 ms 5120 KB Output is correct
42 Correct 5 ms 5120 KB Output is correct
43 Correct 5 ms 5120 KB Output is correct
44 Correct 4 ms 5120 KB Output is correct
45 Correct 4 ms 5120 KB Output is correct
46 Correct 5 ms 5116 KB Output is correct
47 Correct 4 ms 5120 KB Output is correct
48 Correct 5 ms 5120 KB Output is correct
49 Correct 5 ms 5120 KB Output is correct
50 Correct 5 ms 5120 KB Output is correct
51 Correct 5 ms 5120 KB Output is correct
52 Correct 4 ms 5120 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 3 ms 4992 KB Output is correct
12 Correct 3 ms 5120 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 3 ms 4992 KB Output is correct
17 Correct 4 ms 5120 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 3 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 4 ms 5120 KB Output is correct
25 Correct 4 ms 4992 KB Output is correct
26 Correct 4 ms 4992 KB Output is correct
27 Correct 3 ms 4992 KB Output is correct
28 Correct 4 ms 4992 KB Output is correct
29 Correct 3 ms 4992 KB Output is correct
30 Correct 3 ms 4992 KB Output is correct
31 Correct 3 ms 4992 KB Output is correct
32 Correct 3 ms 4992 KB Output is correct
33 Correct 3 ms 4992 KB Output is correct
34 Correct 3 ms 4992 KB Output is correct
35 Correct 3 ms 4992 KB Output is correct
36 Correct 3 ms 4992 KB Output is correct
37 Correct 4 ms 4992 KB Output is correct
38 Correct 3 ms 4992 KB Output is correct
39 Correct 3 ms 4992 KB Output is correct
40 Correct 3 ms 4992 KB Output is correct
41 Correct 3 ms 4992 KB Output is correct
42 Correct 3 ms 4992 KB Output is correct
43 Correct 3 ms 4992 KB Output is correct
44 Correct 3 ms 4992 KB Output is correct
45 Correct 4 ms 4992 KB Output is correct
46 Correct 4 ms 4992 KB Output is correct
47 Correct 3 ms 4992 KB Output is correct
48 Correct 3 ms 4992 KB Output is correct
49 Correct 3 ms 4992 KB Output is correct
50 Correct 3 ms 4992 KB Output is correct
51 Correct 4 ms 5120 KB Output is correct
52 Correct 4 ms 5120 KB Output is correct
53 Correct 4 ms 5120 KB Output is correct
54 Correct 9 ms 5756 KB Output is correct
55 Correct 9 ms 5756 KB Output is correct
56 Correct 64 ms 12008 KB Output is correct
57 Correct 58 ms 12008 KB Output is correct
58 Correct 68 ms 12008 KB Output is correct
59 Correct 50 ms 11880 KB Output is correct
60 Correct 65 ms 12008 KB Output is correct
61 Correct 55 ms 11880 KB Output is correct
62 Correct 52 ms 12008 KB Output is correct
63 Correct 53 ms 12136 KB Output is correct
64 Correct 51 ms 12008 KB Output is correct
65 Correct 65 ms 12008 KB Output is correct
66 Correct 53 ms 12008 KB Output is correct
67 Correct 53 ms 11856 KB Output is correct
68 Correct 54 ms 12008 KB Output is correct
69 Correct 3 ms 4992 KB Output is correct
70 Correct 3 ms 4992 KB Output is correct
71 Correct 61 ms 12008 KB Output is correct
72 Correct 62 ms 12008 KB Output is correct
73 Correct 68 ms 12008 KB Output is correct
74 Correct 4 ms 5120 KB Output is correct
75 Correct 4 ms 4992 KB Output is correct
76 Correct 4 ms 4992 KB Output is correct
77 Correct 4 ms 4992 KB Output is correct
78 Correct 88 ms 12656 KB Output is correct
79 Correct 71 ms 12020 KB Output is correct
80 Correct 101 ms 12656 KB Output is correct
81 Correct 62 ms 12200 KB Output is correct
82 Correct 93 ms 12656 KB Output is correct
83 Correct 102 ms 12396 KB Output is correct
84 Correct 5 ms 4992 KB Output is correct
85 Correct 3 ms 4992 KB Output is correct
86 Correct 4 ms 4992 KB Output is correct
87 Correct 4 ms 5120 KB Output is correct
88 Correct 4 ms 5120 KB Output is correct
89 Correct 5 ms 5120 KB Output is correct
90 Correct 5 ms 5120 KB Output is correct
91 Correct 4 ms 5120 KB Output is correct
92 Correct 4 ms 5120 KB Output is correct
93 Correct 5 ms 5116 KB Output is correct
94 Correct 4 ms 5120 KB Output is correct
95 Correct 5 ms 5120 KB Output is correct
96 Correct 5 ms 5120 KB Output is correct
97 Correct 5 ms 5120 KB Output is correct
98 Correct 5 ms 5120 KB Output is correct
99 Correct 4 ms 5120 KB Output is correct
100 Correct 4 ms 5120 KB Output is correct
101 Correct 11 ms 5888 KB Output is correct
102 Correct 11 ms 5888 KB Output is correct
103 Correct 115 ms 12664 KB Output is correct
104 Correct 81 ms 12628 KB Output is correct
105 Correct 92 ms 12396 KB Output is correct
106 Correct 89 ms 12676 KB Output is correct
107 Correct 80 ms 11976 KB Output is correct
108 Correct 75 ms 12028 KB Output is correct
109 Correct 59 ms 12012 KB Output is correct
110 Correct 60 ms 12008 KB Output is correct
111 Correct 114 ms 12784 KB Output is correct
112 Correct 84 ms 12780 KB Output is correct
113 Correct 70 ms 12032 KB Output is correct
114 Correct 107 ms 12656 KB Output is correct
115 Correct 81 ms 12660 KB Output is correct