#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
namespace testcaseCheck {
const int SUBTASK = 2;
bool permutationsOfShoes(vector<int> S, int N) {
vector<int> V;
for (int i = 1; i <= N; ++i) {
V.push_back(-i);
V.push_back(i);
}
sort(S.begin(), S.end());
sort(V.begin(), V.end());
for (int i = 0; i < 2 * N; ++i) {
if (S[i] != V[i]) {
return false;
}
}
return true;
}
void run(std::vector<int> S) {
assert(1 <= SUBTASK && SUBTASK <= 6);
assert(S.size() % 2 == 0);
int N = S.size() / 2;
assert(1 <= N && N <= 100000);
map<int, int> sizeToOccurences;
for (int s : S) {
sizeToOccurences[abs(s)] += s / abs(s);
}
for (pair<int, int> occurences : sizeToOccurences) {
assert(occurences.second == 0);
}
if (SUBTASK == 1) {
assert(N == 1);
}
if (SUBTASK == 2) {
assert(N <= 8);
}
if (SUBTASK == 3) {
for (int s : S) {
assert(abs(s) == abs(S[0]));
}
}
if (SUBTASK == 4) {
for (int i = 0; i < N; ++i) {
assert(abs(S[i]) == S[i + N]);
}
}
if (SUBTASK == 5) {
assert(N <= 1000);
}
}
} // namespace testcaseCheck
long long count_swaps(std::vector<int> S) {
testcaseCheck::run(S);
vector<int> sizes;
for (int s : S) {
if (s > 0) {
sizes.push_back(s);
}
}
int answer = INT_MAX;
sort(sizes.begin(), sizes.end());
do {
int res = 0;
vector<int> currentOrder = S;
vector<int> expectedOrder;
for (int i = 0; i < sizes.size(); ++i) {
expectedOrder.push_back(-sizes[i]);
expectedOrder.push_back(sizes[i]);
}
for (int i = 0; i < expectedOrder.size(); ++i) {
for (int j = i; j < currentOrder.size(); ++j) {
if (currentOrder[j] == expectedOrder[i]) {
while (i != j) {
swap(currentOrder[j], currentOrder[j - 1]);
--j;
++res;
}
break;
}
}
}
answer = min(answer, res);
} while (next_permutation(sizes.begin(), sizes.end()));
return answer;
}
Compilation message
shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:87:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < sizes.size(); ++i) {
~~^~~~~~~~~~~~~~
shoes.cpp:92:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < expectedOrder.size(); ++i) {
~~^~~~~~~~~~~~~~~~~~~~~~
shoes.cpp:93:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int j = i; j < currentOrder.size(); ++j) {
~~^~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
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 |
376 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 |
380 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
14 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 |
380 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
256 KB |
Output is correct |
21 |
Correct |
3 ms |
256 KB |
Output is correct |
22 |
Correct |
2 ms |
256 KB |
Output is correct |
23 |
Correct |
2 ms |
256 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
256 KB |
Output is correct |
26 |
Correct |
22 ms |
504 KB |
Output is correct |
27 |
Correct |
12 ms |
380 KB |
Output is correct |
28 |
Correct |
7 ms |
256 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 |
3 ms |
256 KB |
Output is correct |
33 |
Correct |
4 ms |
380 KB |
Output is correct |
34 |
Correct |
7 ms |
376 KB |
Output is correct |
35 |
Correct |
3 ms |
380 KB |
Output is correct |
36 |
Correct |
7 ms |
256 KB |
Output is correct |
# |
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 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 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 |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
252 KB |
Output is correct |
12 |
Correct |
2 ms |
256 KB |
Output is correct |
13 |
Correct |
2 ms |
256 KB |
Output is correct |
14 |
Runtime error |
2 ms |
376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
15 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
256 KB |
Output is correct |
3 |
Correct |
2 ms |
256 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Runtime error |
124 ms |
14888 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
6 |
Halted |
0 ms |
0 KB |
- |
# |
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 |
376 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 |
380 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
14 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 |
380 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
256 KB |
Output is correct |
21 |
Correct |
3 ms |
256 KB |
Output is correct |
22 |
Correct |
2 ms |
256 KB |
Output is correct |
23 |
Correct |
2 ms |
256 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
256 KB |
Output is correct |
26 |
Correct |
22 ms |
504 KB |
Output is correct |
27 |
Correct |
12 ms |
380 KB |
Output is correct |
28 |
Correct |
7 ms |
256 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 |
3 ms |
256 KB |
Output is correct |
33 |
Correct |
4 ms |
380 KB |
Output is correct |
34 |
Correct |
7 ms |
376 KB |
Output is correct |
35 |
Correct |
3 ms |
380 KB |
Output is correct |
36 |
Correct |
7 ms |
256 KB |
Output is correct |
37 |
Runtime error |
2 ms |
504 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
38 |
Halted |
0 ms |
0 KB |
- |
# |
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 |
376 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 |
380 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
14 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 |
380 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
256 KB |
Output is correct |
21 |
Correct |
3 ms |
256 KB |
Output is correct |
22 |
Correct |
2 ms |
256 KB |
Output is correct |
23 |
Correct |
2 ms |
256 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
256 KB |
Output is correct |
26 |
Correct |
22 ms |
504 KB |
Output is correct |
27 |
Correct |
12 ms |
380 KB |
Output is correct |
28 |
Correct |
7 ms |
256 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 |
3 ms |
256 KB |
Output is correct |
33 |
Correct |
4 ms |
380 KB |
Output is correct |
34 |
Correct |
7 ms |
376 KB |
Output is correct |
35 |
Correct |
3 ms |
380 KB |
Output is correct |
36 |
Correct |
7 ms |
256 KB |
Output is correct |
37 |
Correct |
2 ms |
256 KB |
Output is correct |
38 |
Correct |
2 ms |
256 KB |
Output is correct |
39 |
Correct |
2 ms |
376 KB |
Output is correct |
40 |
Correct |
2 ms |
376 KB |
Output is correct |
41 |
Correct |
2 ms |
256 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 |
252 KB |
Output is correct |
46 |
Correct |
2 ms |
256 KB |
Output is correct |
47 |
Correct |
2 ms |
256 KB |
Output is correct |
48 |
Runtime error |
2 ms |
376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
49 |
Halted |
0 ms |
0 KB |
- |