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Submission #428138

# Submission time Handle Problem Language Result Execution time Memory
428138 2021-06-15T08:20:34 Z haxorman Sorting (IOI15_sorting) C++14
36 / 100
 1000 ms 652 KB 
#include "sorting.h"
#include "bits/stdc++.h"
using namespace std;

const int mxN = 2e5 + 7;

int n, m, arr[mxN];

int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
	n = N, m = M;

	bool ok = true;
	for (int i = 0; i < n; ++i) {
		arr[i] = S[i];
		if (arr[i] != i) {
			ok = false;
		}
	}

	int R = 0;
	for (int ind = 0; ind < m && !ok; ++ind) {
		swap(arr[X[ind]], arr[Y[ind]]);

		ok = true;
		for (int i = 0; i < n; ++i) {
			if (arr[i] != i) {
				ok = false;
			}
		}

		if (ok) {
			P[ind] = Q[ind] = 0;
			++R;
			break;
		}

		bool stop = false;
		for (int i = 0; i < n && !stop; ++i) {
			if (ind + 1 < m && (i == X[ind + 1] || i == Y[ind + 1]))
				continue;

			for (int j = 0; j < n && !stop; ++j) {
				if (arr[j] == i && i != j) {
					swap(arr[j], arr[i]);
					P[ind] = j, Q[ind] = i;
					++R;
					stop = true;
				}
			}
		}

		ok = true;
		for (int i = 0; i < n; ++i) {
			if (arr[i] != i) {
				ok = false;
			}
		}
	}

	return R;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 204 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Execution timed out 1090 ms 652 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1093 ms 356 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 26.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1093 ms 356 KB Time limit exceeded
2 Halted 0 ms 0 KB -