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Submission #143313

# Submission time Handle Problem Language Result Execution time Memory
143313 2019-08-13T15:38:43 Z VladaMG98 Arranging Shoes (IOI19_shoes) C++17
10 / 100
 1000 ms 1920 KB 
#include <bits/stdc++.h>

using namespace std;

long long count_swaps(std::vector<int> s) {
	int n = (int)s.size() / 2;
	int N = 2 * n;
	long long ans = 0;
	for(int pos = 0; pos < n; pos++) {
        //printf("pos = %d\n", pos);
		int fnd = -1;
		for(int i = 2 * pos; i < N; i++) {
			if(s[i] < 0) {
				fnd = i;
				break;
			}
		}
		assert(fnd + 1);
		for(int i = fnd - 1; i >= 2 * pos; i--) {
			swap(s[i], s[i + 1]);
			ans += 1;
		}
		int target = -s[2 * pos];
		fnd = -1;
		for(int i = 2 * pos + 1; i < N; i++) {
			if(s[i] == target) {
				fnd = i;
				break;
			}
		}
		assert(fnd + 1);
		for(int i = fnd - 1; i >= 2 * pos + 1; i--) {
			swap(s[i], s[i + 1]);
			ans += 1;
		}
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 252 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 252 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 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 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 252 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Incorrect 2 ms 376 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 252 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 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 376 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 380 KB Output is correct
13 Correct 2 ms 404 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 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 3 ms 376 KB Output is correct
20 Correct 6 ms 504 KB Output is correct
21 Correct 7 ms 420 KB Output is correct
22 Correct 55 ms 1912 KB Output is correct
23 Correct 26 ms 1912 KB Output is correct
24 Correct 32 ms 1916 KB Output is correct
25 Execution timed out 1036 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 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Execution timed out 1066 ms 1920 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 252 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 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 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 252 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Incorrect 2 ms 376 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 252 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 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 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 252 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Incorrect 2 ms 376 KB Output isn't correct
15 Halted 0 ms 0 KB -