oj.uz

Submission #200923

# Submission time Handle Problem Language Result Execution time Memory
200923 2020-02-08T15:08:09 Z Lawliet Arranging Shoes (IOI19_shoes) C++17
100 / 100
 120 ms 20216 KB 
#include <bits/stdc++.h>
#include "shoes.h"

using namespace std;
typedef long long int lli;

const int MAXN = 200010;

class FenwickTree
{
	public:

		void update(int i, int v)
		{
			for( ; i < MAXN ; i += i & -i )
				BIT[i] += v;
		}

		int query(int i)
		{
			int ans = 0;

			for( ; i > 0 ; i -= i & -i )
				ans += BIT[i];

			return ans;
		}

		int sum(int L, int R) { return query( R ) - query( L - 1 ); }

		FenwickTree() { memset( BIT , 0 , sizeof(BIT) ); }

	private:

		int BIT[MAXN];
};

int last[MAXN];

vector< int > L[MAXN];
vector< int > R[MAXN];

bool marc[MAXN];

FenwickTree BIT;

long long count_swaps(vector<int> s) 
{
	int n = s.size();

	for(int i = 1 ; i <= n ; i++)
	{
		int val = abs( s[i - 1] );

		if( s[i - 1] < 0 ) L[ val ].push_back( i );
		else R[ val ].push_back( i );
	}

	for(int i = 1 ; i <= n ; i++)
		BIT.update( i , 1 );

	lli ans = 0;

	for(int i = 1 ; i <= n ; i++)
	{
		if( marc[i] ) continue;

		int val = abs( s[i - 1] );

		if( s[i - 1] > 0 )
		{
			ans++;
			swap( L[val][ last[val] ] , R[val][ last[val] ] );
		}

		marc[ R[val][ last[val] ] ] = true;

		ans += BIT.sum( L[val][ last[val] ] + 1 , R[val][ last[val] ] ) - 1;
		BIT.update( R[val][ last[val] ] , -1 ); 
		
		last[val]++;
	}

	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 10488 KB Output is correct
2 Correct 11 ms 10492 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 10488 KB Output is correct
2 Correct 11 ms 10492 KB Output is correct
3 Correct 10 ms 10488 KB Output is correct
4 Correct 11 ms 10488 KB Output is correct
5 Correct 12 ms 10488 KB Output is correct
6 Correct 11 ms 10488 KB Output is correct
7 Correct 12 ms 10492 KB Output is correct
8 Correct 12 ms 10488 KB Output is correct
9 Correct 13 ms 10488 KB Output is correct
10 Correct 13 ms 10488 KB Output is correct
11 Correct 11 ms 10488 KB Output is correct
12 Correct 11 ms 10488 KB Output is correct
13 Correct 11 ms 10540 KB Output is correct
14 Correct 12 ms 10592 KB Output is correct
15 Correct 12 ms 10488 KB Output is correct
16 Correct 12 ms 10488 KB Output is correct
17 Correct 12 ms 10488 KB Output is correct
18 Correct 11 ms 10488 KB Output is correct
19 Correct 12 ms 10488 KB Output is correct
20 Correct 13 ms 10488 KB Output is correct
21 Correct 11 ms 10488 KB Output is correct
22 Correct 11 ms 10488 KB Output is correct
23 Correct 11 ms 10488 KB Output is correct
24 Correct 11 ms 10488 KB Output is correct
25 Correct 11 ms 10488 KB Output is correct
26 Correct 11 ms 10488 KB Output is correct
27 Correct 11 ms 10488 KB Output is correct
28 Correct 14 ms 10488 KB Output is correct
29 Correct 11 ms 10488 KB Output is correct
30 Correct 12 ms 10488 KB Output is correct
31 Correct 12 ms 10536 KB Output is correct
32 Correct 12 ms 10488 KB Output is correct
33 Correct 11 ms 10488 KB Output is correct
34 Correct 11 ms 10488 KB Output is correct
35 Correct 11 ms 10488 KB Output is correct
36 Correct 11 ms 10488 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 10488 KB Output is correct
2 Correct 11 ms 10492 KB Output is correct
3 Correct 11 ms 10488 KB Output is correct
4 Correct 11 ms 10488 KB Output is correct
5 Correct 11 ms 10488 KB Output is correct
6 Correct 11 ms 10488 KB Output is correct
7 Correct 11 ms 10488 KB Output is correct
8 Correct 11 ms 10488 KB Output is correct
9 Correct 11 ms 10488 KB Output is correct
10 Correct 12 ms 10488 KB Output is correct
11 Correct 11 ms 10488 KB Output is correct
12 Correct 11 ms 10488 KB Output is correct
13 Correct 11 ms 10488 KB Output is correct
14 Correct 12 ms 10488 KB Output is correct
15 Correct 11 ms 10488 KB Output is correct
16 Correct 12 ms 10488 KB Output is correct
17 Correct 11 ms 10488 KB Output is correct
18 Correct 12 ms 10492 KB Output is correct
19 Correct 12 ms 10488 KB Output is correct
20 Correct 15 ms 10748 KB Output is correct
21 Correct 16 ms 10872 KB Output is correct
22 Correct 56 ms 13208 KB Output is correct
23 Correct 52 ms 13292 KB Output is correct
24 Correct 54 ms 13292 KB Output is correct
25 Correct 51 ms 13172 KB Output is correct
26 Correct 57 ms 13292 KB Output is correct
27 Correct 52 ms 13292 KB Output is correct
28 Correct 52 ms 13168 KB Output is correct
29 Correct 53 ms 13168 KB Output is correct
30 Correct 53 ms 13168 KB Output is correct
31 Correct 59 ms 13188 KB Output is correct
32 Correct 52 ms 13168 KB Output is correct
33 Correct 52 ms 13168 KB Output is correct
34 Correct 50 ms 13200 KB Output is correct
35 Correct 11 ms 10484 KB Output is correct
36 Correct 12 ms 10488 KB Output is correct
37 Correct 52 ms 13296 KB Output is correct
38 Correct 51 ms 13352 KB Output is correct
39 Correct 53 ms 13296 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 10488 KB Output is correct
2 Correct 12 ms 10488 KB Output is correct
3 Correct 12 ms 10488 KB Output is correct
4 Correct 11 ms 10488 KB Output is correct
5 Correct 85 ms 18808 KB Output is correct
6 Correct 76 ms 14152 KB Output is correct
7 Correct 91 ms 18808 KB Output is correct
8 Correct 54 ms 13188 KB Output is correct
9 Correct 85 ms 18808 KB Output is correct
10 Correct 91 ms 15736 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 10488 KB Output is correct
2 Correct 11 ms 10492 KB Output is correct
3 Correct 10 ms 10488 KB Output is correct
4 Correct 11 ms 10488 KB Output is correct
5 Correct 12 ms 10488 KB Output is correct
6 Correct 11 ms 10488 KB Output is correct
7 Correct 12 ms 10492 KB Output is correct
8 Correct 12 ms 10488 KB Output is correct
9 Correct 13 ms 10488 KB Output is correct
10 Correct 13 ms 10488 KB Output is correct
11 Correct 11 ms 10488 KB Output is correct
12 Correct 11 ms 10488 KB Output is correct
13 Correct 11 ms 10540 KB Output is correct
14 Correct 12 ms 10592 KB Output is correct
15 Correct 12 ms 10488 KB Output is correct
16 Correct 12 ms 10488 KB Output is correct
17 Correct 12 ms 10488 KB Output is correct
18 Correct 11 ms 10488 KB Output is correct
19 Correct 12 ms 10488 KB Output is correct
20 Correct 13 ms 10488 KB Output is correct
21 Correct 11 ms 10488 KB Output is correct
22 Correct 11 ms 10488 KB Output is correct
23 Correct 11 ms 10488 KB Output is correct
24 Correct 11 ms 10488 KB Output is correct
25 Correct 11 ms 10488 KB Output is correct
26 Correct 11 ms 10488 KB Output is correct
27 Correct 11 ms 10488 KB Output is correct
28 Correct 14 ms 10488 KB Output is correct
29 Correct 11 ms 10488 KB Output is correct
30 Correct 12 ms 10488 KB Output is correct
31 Correct 12 ms 10536 KB Output is correct
32 Correct 12 ms 10488 KB Output is correct
33 Correct 11 ms 10488 KB Output is correct
34 Correct 11 ms 10488 KB Output is correct
35 Correct 11 ms 10488 KB Output is correct
36 Correct 11 ms 10488 KB Output is correct
37 Correct 12 ms 10488 KB Output is correct
38 Correct 11 ms 10488 KB Output is correct
39 Correct 12 ms 10616 KB Output is correct
40 Correct 11 ms 10488 KB Output is correct
41 Correct 12 ms 10616 KB Output is correct
42 Correct 12 ms 10616 KB Output is correct
43 Correct 12 ms 10616 KB Output is correct
44 Correct 12 ms 10616 KB Output is correct
45 Correct 12 ms 10616 KB Output is correct
46 Correct 12 ms 10616 KB Output is correct
47 Correct 12 ms 10488 KB Output is correct
48 Correct 12 ms 10488 KB Output is correct
49 Correct 12 ms 10488 KB Output is correct
50 Correct 12 ms 10488 KB Output is correct
51 Correct 12 ms 10492 KB Output is correct
52 Correct 12 ms 10616 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 10488 KB Output is correct
2 Correct 11 ms 10492 KB Output is correct
3 Correct 10 ms 10488 KB Output is correct
4 Correct 11 ms 10488 KB Output is correct
5 Correct 12 ms 10488 KB Output is correct
6 Correct 11 ms 10488 KB Output is correct
7 Correct 12 ms 10492 KB Output is correct
8 Correct 12 ms 10488 KB Output is correct
9 Correct 13 ms 10488 KB Output is correct
10 Correct 13 ms 10488 KB Output is correct
11 Correct 11 ms 10488 KB Output is correct
12 Correct 11 ms 10488 KB Output is correct
13 Correct 11 ms 10540 KB Output is correct
14 Correct 12 ms 10592 KB Output is correct
15 Correct 12 ms 10488 KB Output is correct
16 Correct 12 ms 10488 KB Output is correct
17 Correct 12 ms 10488 KB Output is correct
18 Correct 11 ms 10488 KB Output is correct
19 Correct 12 ms 10488 KB Output is correct
20 Correct 13 ms 10488 KB Output is correct
21 Correct 11 ms 10488 KB Output is correct
22 Correct 11 ms 10488 KB Output is correct
23 Correct 11 ms 10488 KB Output is correct
24 Correct 11 ms 10488 KB Output is correct
25 Correct 11 ms 10488 KB Output is correct
26 Correct 11 ms 10488 KB Output is correct
27 Correct 11 ms 10488 KB Output is correct
28 Correct 14 ms 10488 KB Output is correct
29 Correct 11 ms 10488 KB Output is correct
30 Correct 12 ms 10488 KB Output is correct
31 Correct 12 ms 10536 KB Output is correct
32 Correct 12 ms 10488 KB Output is correct
33 Correct 11 ms 10488 KB Output is correct
34 Correct 11 ms 10488 KB Output is correct
35 Correct 11 ms 10488 KB Output is correct
36 Correct 11 ms 10488 KB Output is correct
37 Correct 11 ms 10488 KB Output is correct
38 Correct 11 ms 10488 KB Output is correct
39 Correct 11 ms 10488 KB Output is correct
40 Correct 11 ms 10488 KB Output is correct
41 Correct 11 ms 10488 KB Output is correct
42 Correct 11 ms 10488 KB Output is correct
43 Correct 11 ms 10488 KB Output is correct
44 Correct 12 ms 10488 KB Output is correct
45 Correct 11 ms 10488 KB Output is correct
46 Correct 11 ms 10488 KB Output is correct
47 Correct 11 ms 10488 KB Output is correct
48 Correct 12 ms 10488 KB Output is correct
49 Correct 11 ms 10488 KB Output is correct
50 Correct 12 ms 10488 KB Output is correct
51 Correct 11 ms 10488 KB Output is correct
52 Correct 12 ms 10492 KB Output is correct
53 Correct 12 ms 10488 KB Output is correct
54 Correct 15 ms 10748 KB Output is correct
55 Correct 16 ms 10872 KB Output is correct
56 Correct 56 ms 13208 KB Output is correct
57 Correct 52 ms 13292 KB Output is correct
58 Correct 54 ms 13292 KB Output is correct
59 Correct 51 ms 13172 KB Output is correct
60 Correct 57 ms 13292 KB Output is correct
61 Correct 52 ms 13292 KB Output is correct
62 Correct 52 ms 13168 KB Output is correct
63 Correct 53 ms 13168 KB Output is correct
64 Correct 53 ms 13168 KB Output is correct
65 Correct 59 ms 13188 KB Output is correct
66 Correct 52 ms 13168 KB Output is correct
67 Correct 52 ms 13168 KB Output is correct
68 Correct 50 ms 13200 KB Output is correct
69 Correct 11 ms 10484 KB Output is correct
70 Correct 12 ms 10488 KB Output is correct
71 Correct 52 ms 13296 KB Output is correct
72 Correct 51 ms 13352 KB Output is correct
73 Correct 53 ms 13296 KB Output is correct
74 Correct 11 ms 10488 KB Output is correct
75 Correct 12 ms 10488 KB Output is correct
76 Correct 12 ms 10488 KB Output is correct
77 Correct 11 ms 10488 KB Output is correct
78 Correct 85 ms 18808 KB Output is correct
79 Correct 76 ms 14152 KB Output is correct
80 Correct 91 ms 18808 KB Output is correct
81 Correct 54 ms 13188 KB Output is correct
82 Correct 85 ms 18808 KB Output is correct
83 Correct 91 ms 15736 KB Output is correct
84 Correct 12 ms 10488 KB Output is correct
85 Correct 11 ms 10488 KB Output is correct
86 Correct 12 ms 10616 KB Output is correct
87 Correct 11 ms 10488 KB Output is correct
88 Correct 12 ms 10616 KB Output is correct
89 Correct 12 ms 10616 KB Output is correct
90 Correct 12 ms 10616 KB Output is correct
91 Correct 12 ms 10616 KB Output is correct
92 Correct 12 ms 10616 KB Output is correct
93 Correct 12 ms 10616 KB Output is correct
94 Correct 12 ms 10488 KB Output is correct
95 Correct 12 ms 10488 KB Output is correct
96 Correct 12 ms 10488 KB Output is correct
97 Correct 12 ms 10488 KB Output is correct
98 Correct 12 ms 10492 KB Output is correct
99 Correct 12 ms 10616 KB Output is correct
100 Correct 12 ms 10616 KB Output is correct
101 Correct 18 ms 11384 KB Output is correct
102 Correct 18 ms 11000 KB Output is correct
103 Correct 117 ms 20216 KB Output is correct
104 Correct 103 ms 20144 KB Output is correct
105 Correct 120 ms 17528 KB Output is correct
106 Correct 91 ms 20088 KB Output is correct
107 Correct 84 ms 15480 KB Output is correct
108 Correct 89 ms 15864 KB Output is correct
109 Correct 53 ms 14704 KB Output is correct
110 Correct 54 ms 14576 KB Output is correct
111 Correct 92 ms 19448 KB Output is correct
112 Correct 110 ms 18808 KB Output is correct
113 Correct 83 ms 15356 KB Output is correct
114 Correct 91 ms 20088 KB Output is correct
115 Correct 89 ms 20088 KB Output is correct