oj.uz

Submission #211155

# Submission time Handle Problem Language Result Execution time Memory
211155 2020-03-19T10:30:11 Z vincent97198 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 747 ms 148904 KB 
#include <bits/stdc++.h>
#include "shoes.h"
#define N 100005

using namespace std;

long long BIT[2*N];

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

void add(int pos,long long val)
{
	for(;pos<2*N;pos+=lowbit(pos))
		BIT[pos]+=val;
}

long long sum(int pos)
{
	int ret=0;
	for(;pos>0;pos-=lowbit(pos))
		ret+=BIT[pos];
	return ret;
}

long long count_swaps(vector<int> S)
{
	map<long long,queue<int>> mp;
	
	long long ans=0;
	S.insert(S.begin(),0);
	for(int i=1;i<=S.size();++i){
		mp[S[i]].push(i);
		add(i,1);
	}
	for(int i=0;i<S.size();++i){
		if(mp[S[i]].empty() || mp[S[i]].front()!=i)	continue;
		mp[S[i]].pop();
		int t=mp[-S[i]].front();	mp[-S[i]].pop();
		if(S[i]>0)
			++ans;
		ans+=(sum(t-1)-sum(i));
		add(t,-1);
	}
	return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:34:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1;i<=S.size();++i){
              ~^~~~~~~~~~
shoes.cpp:38:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<S.size();++i){
              ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 512 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 4 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 4 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 4 ms 384 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 9 ms 768 KB Output is correct
21 Correct 9 ms 768 KB Output is correct
22 Correct 47 ms 4328 KB Output is correct
23 Correct 45 ms 5480 KB Output is correct
24 Correct 51 ms 5608 KB Output is correct
25 Correct 43 ms 5352 KB Output is correct
26 Correct 48 ms 5480 KB Output is correct
27 Correct 46 ms 5352 KB Output is correct
28 Correct 44 ms 5616 KB Output is correct
29 Correct 43 ms 5608 KB Output is correct
30 Correct 46 ms 5608 KB Output is correct
31 Correct 48 ms 5608 KB Output is correct
32 Correct 43 ms 5480 KB Output is correct
33 Correct 43 ms 5352 KB Output is correct
34 Correct 45 ms 5608 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 45 ms 5484 KB Output is correct
38 Correct 44 ms 5480 KB Output is correct
39 Correct 45 ms 5480 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 614 ms 147560 KB Output is correct
6 Correct 214 ms 16104 KB Output is correct
7 Correct 630 ms 147432 KB Output is correct
8 Correct 50 ms 4328 KB Output is correct
9 Correct 631 ms 148712 KB Output is correct
10 Correct 466 ms 76904 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 512 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 4 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 4 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 4 ms 384 KB Output is correct
37 Correct 4 ms 384 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 5 ms 512 KB Output is correct
40 Correct 5 ms 640 KB Output is correct
41 Correct 7 ms 1792 KB Output is correct
42 Correct 9 ms 1792 KB Output is correct
43 Correct 7 ms 1664 KB Output is correct
44 Correct 7 ms 1536 KB Output is correct
45 Correct 6 ms 1152 KB Output is correct
46 Correct 6 ms 1152 KB Output is correct
47 Correct 7 ms 1024 KB Output is correct
48 Correct 7 ms 768 KB Output is correct
49 Correct 6 ms 640 KB Output is correct
50 Correct 5 ms 384 KB Output is correct
51 Correct 5 ms 384 KB Output is correct
52 Correct 7 ms 1792 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 512 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 4 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 4 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 4 ms 384 KB Output is correct
37 Correct 5 ms 384 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 5 ms 384 KB Output is correct
40 Correct 4 ms 384 KB Output is correct
41 Correct 5 ms 384 KB Output is correct
42 Correct 4 ms 384 KB Output is correct
43 Correct 5 ms 384 KB Output is correct
44 Correct 5 ms 384 KB Output is correct
45 Correct 5 ms 384 KB Output is correct
46 Correct 5 ms 384 KB Output is correct
47 Correct 5 ms 384 KB Output is correct
48 Correct 5 ms 384 KB Output is correct
49 Correct 4 ms 384 KB Output is correct
50 Correct 4 ms 384 KB Output is correct
51 Correct 5 ms 384 KB Output is correct
52 Correct 5 ms 384 KB Output is correct
53 Correct 5 ms 384 KB Output is correct
54 Correct 9 ms 768 KB Output is correct
55 Correct 9 ms 768 KB Output is correct
56 Correct 47 ms 4328 KB Output is correct
57 Correct 45 ms 5480 KB Output is correct
58 Correct 51 ms 5608 KB Output is correct
59 Correct 43 ms 5352 KB Output is correct
60 Correct 48 ms 5480 KB Output is correct
61 Correct 46 ms 5352 KB Output is correct
62 Correct 44 ms 5616 KB Output is correct
63 Correct 43 ms 5608 KB Output is correct
64 Correct 46 ms 5608 KB Output is correct
65 Correct 48 ms 5608 KB Output is correct
66 Correct 43 ms 5480 KB Output is correct
67 Correct 43 ms 5352 KB Output is correct
68 Correct 45 ms 5608 KB Output is correct
69 Correct 5 ms 384 KB Output is correct
70 Correct 5 ms 384 KB Output is correct
71 Correct 45 ms 5484 KB Output is correct
72 Correct 44 ms 5480 KB Output is correct
73 Correct 45 ms 5480 KB Output is correct
74 Correct 5 ms 384 KB Output is correct
75 Correct 5 ms 384 KB Output is correct
76 Correct 4 ms 384 KB Output is correct
77 Correct 4 ms 384 KB Output is correct
78 Correct 614 ms 147560 KB Output is correct
79 Correct 214 ms 16104 KB Output is correct
80 Correct 630 ms 147432 KB Output is correct
81 Correct 50 ms 4328 KB Output is correct
82 Correct 631 ms 148712 KB Output is correct
83 Correct 466 ms 76904 KB Output is correct
84 Correct 4 ms 384 KB Output is correct
85 Correct 5 ms 384 KB Output is correct
86 Correct 5 ms 512 KB Output is correct
87 Correct 5 ms 640 KB Output is correct
88 Correct 7 ms 1792 KB Output is correct
89 Correct 9 ms 1792 KB Output is correct
90 Correct 7 ms 1664 KB Output is correct
91 Correct 7 ms 1536 KB Output is correct
92 Correct 6 ms 1152 KB Output is correct
93 Correct 6 ms 1152 KB Output is correct
94 Correct 7 ms 1024 KB Output is correct
95 Correct 7 ms 768 KB Output is correct
96 Correct 6 ms 640 KB Output is correct
97 Correct 5 ms 384 KB Output is correct
98 Correct 5 ms 384 KB Output is correct
99 Correct 7 ms 1792 KB Output is correct
100 Correct 7 ms 1792 KB Output is correct
101 Correct 46 ms 13696 KB Output is correct
102 Correct 22 ms 3624 KB Output is correct
103 Correct 747 ms 148840 KB Output is correct
104 Correct 591 ms 148712 KB Output is correct
105 Correct 551 ms 86504 KB Output is correct
106 Correct 630 ms 148844 KB Output is correct
107 Correct 243 ms 20712 KB Output is correct
108 Correct 310 ms 36712 KB Output is correct
109 Correct 46 ms 5608 KB Output is correct
110 Correct 46 ms 5608 KB Output is correct
111 Correct 634 ms 132840 KB Output is correct
112 Correct 636 ms 116712 KB Output is correct
113 Correct 245 ms 22504 KB Output is correct
114 Correct 621 ms 148712 KB Output is correct
115 Correct 611 ms 148904 KB Output is correct