oj.uz

Submission #428122

# Submission time Handle Problem Language Result Execution time Memory
428122 2021-06-15T08:13:37 Z haxorman Sorting (IOI15_sorting) C++14
0 / 100
 1000 ms 344 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;

	for (int i = 0; i < n; ++i) {
		arr[i] = S[i];
	}

	int R = 0;
	bool ok = false;
	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
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1091 ms 344 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 1091 ms 344 KB Time limit exceeded
2 Halted 0 ms 0 KB -