oj.uz

Submission #863405

# Submission time Handle Problem Language Result Execution time Memory
863405 2023-10-20T07:29:30 Z 20163070 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 49 ms 21504 KB 
#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;

const int N=4e5+10;

int n;
int tr[N];
int vis[N];
int a[N];
vector<int> pos[N];

int lowbit(int x)
{
	return x&-x;
}

int sum(int x)
{
	int res=0;
	for(int i=x;i;i-=lowbit(i)) res+=tr[i];
	return res;
}

void add(int x,int c)
{
	for(int i=x;i<=n;i+=lowbit(i))
		tr[i]+=c;
}

long long count_swaps(std::vector<int> s) {
	n=s.size();
	for(int i=0;i<n;i++) a[i+1]=s[i];
	for(int i=1;i<=n;i++)
	{
		pos[a[i]+n].push_back(i);
		add(i,1);
	}
	long long ans=0;
	for(int i=n;i>=1;i--)
	{
		if(vis[i]) continue;
		vis[i]=1;
		pos[a[i]+n].pop_back();
		int res=pos[n-a[i]].back();
		pos[n-a[i]].pop_back();
		vis[res]=1;
		ans=ans+(long long)(sum(i-1)-sum(res))+((a[i]<0)?1:0);
		add(res,-1);
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10864 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10844 KB Output is correct
8 Correct 2 ms 10844 KB Output is correct
9 Correct 2 ms 10844 KB Output is correct
10 Correct 2 ms 10840 KB Output is correct
11 Correct 2 ms 10844 KB Output is correct
12 Correct 3 ms 10648 KB Output is correct
13 Correct 3 ms 10844 KB Output is correct
14 Correct 2 ms 10876 KB Output is correct
15 Correct 2 ms 10856 KB Output is correct
16 Correct 2 ms 10848 KB Output is correct
17 Correct 2 ms 10844 KB Output is correct
18 Correct 2 ms 10840 KB Output is correct
19 Correct 3 ms 10892 KB Output is correct
20 Correct 2 ms 10844 KB Output is correct
21 Correct 2 ms 10852 KB Output is correct
22 Correct 3 ms 10880 KB Output is correct
23 Correct 2 ms 10844 KB Output is correct
24 Correct 2 ms 10844 KB Output is correct
25 Correct 2 ms 10844 KB Output is correct
26 Correct 2 ms 10840 KB Output is correct
27 Correct 2 ms 10844 KB Output is correct
28 Correct 2 ms 10880 KB Output is correct
29 Correct 2 ms 10844 KB Output is correct
30 Correct 2 ms 10844 KB Output is correct
31 Correct 2 ms 10844 KB Output is correct
32 Correct 2 ms 10884 KB Output is correct
33 Correct 2 ms 10840 KB Output is correct
34 Correct 2 ms 10840 KB Output is correct
35 Correct 2 ms 10840 KB Output is correct
36 Correct 2 ms 11096 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10844 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10844 KB Output is correct
8 Correct 2 ms 10844 KB Output is correct
9 Correct 2 ms 10844 KB Output is correct
10 Correct 2 ms 10844 KB Output is correct
11 Correct 2 ms 10844 KB Output is correct
12 Correct 2 ms 10884 KB Output is correct
13 Correct 2 ms 10844 KB Output is correct
14 Correct 2 ms 10876 KB Output is correct
15 Correct 2 ms 10844 KB Output is correct
16 Correct 2 ms 10844 KB Output is correct
17 Correct 2 ms 10844 KB Output is correct
18 Correct 2 ms 10844 KB Output is correct
19 Correct 2 ms 10844 KB Output is correct
20 Correct 4 ms 11356 KB Output is correct
21 Correct 4 ms 11376 KB Output is correct
22 Correct 26 ms 16156 KB Output is correct
23 Correct 24 ms 16244 KB Output is correct
24 Correct 25 ms 16080 KB Output is correct
25 Correct 23 ms 15888 KB Output is correct
26 Correct 25 ms 16076 KB Output is correct
27 Correct 21 ms 16076 KB Output is correct
28 Correct 26 ms 15984 KB Output is correct
29 Correct 22 ms 16124 KB Output is correct
30 Correct 22 ms 16212 KB Output is correct
31 Correct 25 ms 15968 KB Output is correct
32 Correct 22 ms 16204 KB Output is correct
33 Correct 21 ms 15952 KB Output is correct
34 Correct 22 ms 15996 KB Output is correct
35 Correct 2 ms 10844 KB Output is correct
36 Correct 2 ms 10844 KB Output is correct
37 Correct 23 ms 16208 KB Output is correct
38 Correct 22 ms 15948 KB Output is correct
39 Correct 22 ms 16212 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10876 KB Output is correct
5 Correct 36 ms 21332 KB Output is correct
6 Correct 31 ms 16468 KB Output is correct
7 Correct 35 ms 21336 KB Output is correct
8 Correct 22 ms 16124 KB Output is correct
9 Correct 40 ms 21504 KB Output is correct
10 Correct 34 ms 18260 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10864 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10844 KB Output is correct
8 Correct 2 ms 10844 KB Output is correct
9 Correct 2 ms 10844 KB Output is correct
10 Correct 2 ms 10840 KB Output is correct
11 Correct 2 ms 10844 KB Output is correct
12 Correct 3 ms 10648 KB Output is correct
13 Correct 3 ms 10844 KB Output is correct
14 Correct 2 ms 10876 KB Output is correct
15 Correct 2 ms 10856 KB Output is correct
16 Correct 2 ms 10848 KB Output is correct
17 Correct 2 ms 10844 KB Output is correct
18 Correct 2 ms 10840 KB Output is correct
19 Correct 3 ms 10892 KB Output is correct
20 Correct 2 ms 10844 KB Output is correct
21 Correct 2 ms 10852 KB Output is correct
22 Correct 3 ms 10880 KB Output is correct
23 Correct 2 ms 10844 KB Output is correct
24 Correct 2 ms 10844 KB Output is correct
25 Correct 2 ms 10844 KB Output is correct
26 Correct 2 ms 10840 KB Output is correct
27 Correct 2 ms 10844 KB Output is correct
28 Correct 2 ms 10880 KB Output is correct
29 Correct 2 ms 10844 KB Output is correct
30 Correct 2 ms 10844 KB Output is correct
31 Correct 2 ms 10844 KB Output is correct
32 Correct 2 ms 10884 KB Output is correct
33 Correct 2 ms 10840 KB Output is correct
34 Correct 2 ms 10840 KB Output is correct
35 Correct 2 ms 10840 KB Output is correct
36 Correct 2 ms 11096 KB Output is correct
37 Correct 2 ms 10844 KB Output is correct
38 Correct 2 ms 10844 KB Output is correct
39 Correct 2 ms 10844 KB Output is correct
40 Correct 2 ms 10844 KB Output is correct
41 Correct 2 ms 10844 KB Output is correct
42 Correct 2 ms 10844 KB Output is correct
43 Correct 2 ms 10844 KB Output is correct
44 Correct 2 ms 10844 KB Output is correct
45 Correct 2 ms 10844 KB Output is correct
46 Correct 3 ms 11100 KB Output is correct
47 Correct 2 ms 10892 KB Output is correct
48 Correct 2 ms 10844 KB Output is correct
49 Correct 2 ms 10844 KB Output is correct
50 Correct 2 ms 10844 KB Output is correct
51 Correct 2 ms 10844 KB Output is correct
52 Correct 2 ms 10844 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10864 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10844 KB Output is correct
8 Correct 2 ms 10844 KB Output is correct
9 Correct 2 ms 10844 KB Output is correct
10 Correct 2 ms 10840 KB Output is correct
11 Correct 2 ms 10844 KB Output is correct
12 Correct 3 ms 10648 KB Output is correct
13 Correct 3 ms 10844 KB Output is correct
14 Correct 2 ms 10876 KB Output is correct
15 Correct 2 ms 10856 KB Output is correct
16 Correct 2 ms 10848 KB Output is correct
17 Correct 2 ms 10844 KB Output is correct
18 Correct 2 ms 10840 KB Output is correct
19 Correct 3 ms 10892 KB Output is correct
20 Correct 2 ms 10844 KB Output is correct
21 Correct 2 ms 10852 KB Output is correct
22 Correct 3 ms 10880 KB Output is correct
23 Correct 2 ms 10844 KB Output is correct
24 Correct 2 ms 10844 KB Output is correct
25 Correct 2 ms 10844 KB Output is correct
26 Correct 2 ms 10840 KB Output is correct
27 Correct 2 ms 10844 KB Output is correct
28 Correct 2 ms 10880 KB Output is correct
29 Correct 2 ms 10844 KB Output is correct
30 Correct 2 ms 10844 KB Output is correct
31 Correct 2 ms 10844 KB Output is correct
32 Correct 2 ms 10884 KB Output is correct
33 Correct 2 ms 10840 KB Output is correct
34 Correct 2 ms 10840 KB Output is correct
35 Correct 2 ms 10840 KB Output is correct
36 Correct 2 ms 11096 KB Output is correct
37 Correct 2 ms 10844 KB Output is correct
38 Correct 2 ms 10844 KB Output is correct
39 Correct 2 ms 10844 KB Output is correct
40 Correct 2 ms 10844 KB Output is correct
41 Correct 2 ms 10844 KB Output is correct
42 Correct 2 ms 10844 KB Output is correct
43 Correct 2 ms 10844 KB Output is correct
44 Correct 2 ms 10844 KB Output is correct
45 Correct 2 ms 10844 KB Output is correct
46 Correct 2 ms 10884 KB Output is correct
47 Correct 2 ms 10844 KB Output is correct
48 Correct 2 ms 10876 KB Output is correct
49 Correct 2 ms 10844 KB Output is correct
50 Correct 2 ms 10844 KB Output is correct
51 Correct 2 ms 10844 KB Output is correct
52 Correct 2 ms 10844 KB Output is correct
53 Correct 2 ms 10844 KB Output is correct
54 Correct 4 ms 11356 KB Output is correct
55 Correct 4 ms 11376 KB Output is correct
56 Correct 26 ms 16156 KB Output is correct
57 Correct 24 ms 16244 KB Output is correct
58 Correct 25 ms 16080 KB Output is correct
59 Correct 23 ms 15888 KB Output is correct
60 Correct 25 ms 16076 KB Output is correct
61 Correct 21 ms 16076 KB Output is correct
62 Correct 26 ms 15984 KB Output is correct
63 Correct 22 ms 16124 KB Output is correct
64 Correct 22 ms 16212 KB Output is correct
65 Correct 25 ms 15968 KB Output is correct
66 Correct 22 ms 16204 KB Output is correct
67 Correct 21 ms 15952 KB Output is correct
68 Correct 22 ms 15996 KB Output is correct
69 Correct 2 ms 10844 KB Output is correct
70 Correct 2 ms 10844 KB Output is correct
71 Correct 23 ms 16208 KB Output is correct
72 Correct 22 ms 15948 KB Output is correct
73 Correct 22 ms 16212 KB Output is correct
74 Correct 2 ms 10844 KB Output is correct
75 Correct 2 ms 10844 KB Output is correct
76 Correct 2 ms 10844 KB Output is correct
77 Correct 2 ms 10876 KB Output is correct
78 Correct 36 ms 21332 KB Output is correct
79 Correct 31 ms 16468 KB Output is correct
80 Correct 35 ms 21336 KB Output is correct
81 Correct 22 ms 16124 KB Output is correct
82 Correct 40 ms 21504 KB Output is correct
83 Correct 34 ms 18260 KB Output is correct
84 Correct 2 ms 10844 KB Output is correct
85 Correct 2 ms 10844 KB Output is correct
86 Correct 2 ms 10844 KB Output is correct
87 Correct 2 ms 10844 KB Output is correct
88 Correct 2 ms 10844 KB Output is correct
89 Correct 2 ms 10844 KB Output is correct
90 Correct 2 ms 10844 KB Output is correct
91 Correct 2 ms 10844 KB Output is correct
92 Correct 2 ms 10844 KB Output is correct
93 Correct 3 ms 11100 KB Output is correct
94 Correct 2 ms 10892 KB Output is correct
95 Correct 2 ms 10844 KB Output is correct
96 Correct 2 ms 10844 KB Output is correct
97 Correct 2 ms 10844 KB Output is correct
98 Correct 2 ms 10844 KB Output is correct
99 Correct 2 ms 10844 KB Output is correct
100 Correct 2 ms 10840 KB Output is correct
101 Correct 6 ms 11868 KB Output is correct
102 Correct 5 ms 11376 KB Output is correct
103 Correct 49 ms 21504 KB Output is correct
104 Correct 33 ms 21328 KB Output is correct
105 Correct 39 ms 18804 KB Output is correct
106 Correct 33 ms 21432 KB Output is correct
107 Correct 32 ms 16724 KB Output is correct
108 Correct 31 ms 17156 KB Output is correct
109 Correct 24 ms 16340 KB Output is correct
110 Correct 23 ms 16208 KB Output is correct
111 Correct 33 ms 20828 KB Output is correct
112 Correct 49 ms 20096 KB Output is correct
113 Correct 31 ms 16720 KB Output is correct
114 Correct 33 ms 21340 KB Output is correct
115 Correct 34 ms 21488 KB Output is correct