Submission #144528

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
144528	2019-08-17T04:45:51 Z	MohamedAhmed04	Arranging Shoes (IOI19_shoes)	C++14	50 / 100	1000 ms	2040 KB

shoes

#include "shoes.h"
#include <bits/stdc++.h>

using namespace std ;

long long count_swaps(vector<int> v) 
{
	int ans = 0 ;
	for(int i = 0 ; i < v.size() ; ++i)
	{
		if(i&1)
			continue ;
		int idx ;
		for(int j = i+1 ; j < v.size() ; ++j)
		{
			if(v[j] == -v[i])
			{
				idx = j ;
				break ;
			}
		}
		for(int j = idx-1 ; j > i ; --j)
		{
			swap(v[j], v[j+1]) ;
			ans++ ;
		}
		if(v[i] > 0)
			swap(v[i], v[i+1]), ans++ ;
	}
	return ans ;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:9:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0 ; i < v.size() ; ++i)
                  ~~^~~~~~~~~~
shoes.cpp:14:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j = i+1 ; j < v.size() ; ++j)
                     ~~^~~~~~~~~~
shoes.cpp:13:7: warning: 'idx' may be used uninitialized in this function [-Wmaybe-uninitialized]
   int idx ;
       ^~~

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct

Subtask #2

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	3 ms	380 KB	Output is correct
4	Correct	2 ms	256 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	256 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	2 ms	380 KB	Output is correct
11	Correct	2 ms	256 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	296 KB	Output is correct
14	Correct	2 ms	256 KB	Output is correct
15	Correct	2 ms	256 KB	Output is correct
16	Correct	2 ms	256 KB	Output is correct
17	Correct	2 ms	256 KB	Output is correct
18	Correct	2 ms	256 KB	Output is correct
19	Correct	2 ms	256 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	256 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	348 KB	Output is correct
25	Correct	2 ms	256 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	2 ms	252 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	376 KB	Output is correct
32	Correct	2 ms	376 KB	Output is correct
33	Correct	2 ms	376 KB	Output is correct
34	Correct	2 ms	256 KB	Output is correct
35	Correct	2 ms	376 KB	Output is correct
36	Correct	2 ms	376 KB	Output is correct

Subtask #3

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	252 KB	Output is correct
4	Correct	2 ms	348 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	256 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	256 KB	Output is correct
16	Correct	2 ms	256 KB	Output is correct
17	Correct	2 ms	256 KB	Output is correct
18	Correct	2 ms	256 KB	Output is correct
19	Correct	2 ms	256 KB	Output is correct
20	Correct	5 ms	504 KB	Output is correct
21	Correct	7 ms	504 KB	Output is correct
22	Correct	55 ms	1912 KB	Output is correct
23	Correct	28 ms	1888 KB	Output is correct
24	Correct	32 ms	1912 KB	Output is correct
25	Execution timed out	1082 ms	1912 KB	Time limit exceeded
26	Halted	0 ms	0 KB	-

Subtask #4

0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	256 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	256 KB	Output is correct
4	Correct	2 ms	256 KB	Output is correct
5	Execution timed out	1060 ms	2040 KB	Time limit exceeded
6	Halted	0 ms	0 KB	-

Subtask #5

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	3 ms	380 KB	Output is correct
4	Correct	2 ms	256 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	256 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	2 ms	380 KB	Output is correct
11	Correct	2 ms	256 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	296 KB	Output is correct
14	Correct	2 ms	256 KB	Output is correct
15	Correct	2 ms	256 KB	Output is correct
16	Correct	2 ms	256 KB	Output is correct
17	Correct	2 ms	256 KB	Output is correct
18	Correct	2 ms	256 KB	Output is correct
19	Correct	2 ms	256 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	256 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	348 KB	Output is correct
25	Correct	2 ms	256 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	2 ms	252 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	376 KB	Output is correct
32	Correct	2 ms	376 KB	Output is correct
33	Correct	2 ms	376 KB	Output is correct
34	Correct	2 ms	256 KB	Output is correct
35	Correct	2 ms	376 KB	Output is correct
36	Correct	2 ms	376 KB	Output is correct
37	Correct	2 ms	256 KB	Output is correct
38	Correct	2 ms	376 KB	Output is correct
39	Correct	2 ms	380 KB	Output is correct
40	Correct	2 ms	252 KB	Output is correct
41	Correct	4 ms	376 KB	Output is correct
42	Correct	2 ms	256 KB	Output is correct
43	Correct	2 ms	256 KB	Output is correct
44	Correct	5 ms	376 KB	Output is correct
45	Correct	2 ms	256 KB	Output is correct
46	Correct	2 ms	376 KB	Output is correct
47	Correct	4 ms	376 KB	Output is correct
48	Correct	4 ms	376 KB	Output is correct
49	Correct	3 ms	376 KB	Output is correct
50	Correct	4 ms	296 KB	Output is correct
51	Correct	4 ms	376 KB	Output is correct
52	Correct	5 ms	256 KB	Output is correct

Subtask #6

0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	3 ms	380 KB	Output is correct
4	Correct	2 ms	256 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	256 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	2 ms	380 KB	Output is correct
11	Correct	2 ms	256 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	296 KB	Output is correct
14	Correct	2 ms	256 KB	Output is correct
15	Correct	2 ms	256 KB	Output is correct
16	Correct	2 ms	256 KB	Output is correct
17	Correct	2 ms	256 KB	Output is correct
18	Correct	2 ms	256 KB	Output is correct
19	Correct	2 ms	256 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	256 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	348 KB	Output is correct
25	Correct	2 ms	256 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	2 ms	252 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	376 KB	Output is correct
32	Correct	2 ms	376 KB	Output is correct
33	Correct	2 ms	376 KB	Output is correct
34	Correct	2 ms	256 KB	Output is correct
35	Correct	2 ms	376 KB	Output is correct
36	Correct	2 ms	376 KB	Output is correct
37	Correct	2 ms	252 KB	Output is correct
38	Correct	2 ms	348 KB	Output is correct
39	Correct	2 ms	256 KB	Output is correct
40	Correct	2 ms	256 KB	Output is correct
41	Correct	2 ms	376 KB	Output is correct
42	Correct	2 ms	256 KB	Output is correct
43	Correct	2 ms	376 KB	Output is correct
44	Correct	2 ms	376 KB	Output is correct
45	Correct	2 ms	256 KB	Output is correct
46	Correct	2 ms	376 KB	Output is correct
47	Correct	2 ms	376 KB	Output is correct
48	Correct	2 ms	376 KB	Output is correct
49	Correct	2 ms	256 KB	Output is correct
50	Correct	2 ms	256 KB	Output is correct
51	Correct	2 ms	256 KB	Output is correct
52	Correct	2 ms	256 KB	Output is correct
53	Correct	2 ms	256 KB	Output is correct
54	Correct	5 ms	504 KB	Output is correct
55	Correct	7 ms	504 KB	Output is correct
56	Correct	55 ms	1912 KB	Output is correct
57	Correct	28 ms	1888 KB	Output is correct
58	Correct	32 ms	1912 KB	Output is correct
59	Execution timed out	1082 ms	1912 KB	Time limit exceeded
60	Halted	0 ms	0 KB	-