2413번 비슷한 순열

#include <iostream>

using namespace std;

void swap(int *arr, bool *table, int a, int b) {
	int temp = arr[b];
	arr[b] = arr[a];
	arr[a] = temp;
	table[a] = table[b] = true;
}

int main() {
	int len;
	cin >> len;
	if (len < 3 && len > 50000) {
		return 0;
	}
	int *arr = new int[len];
	bool *table = new bool[len];
	for (int i = 0; i < len; i++) {
		cin >> arr[i];
		table[i] = false;
	}

	for (int i = 0; i < len-1; i++) {
		int temp = arr[i];
		for (int j = i+1; j < len; j++) {
			if (arr[j] == temp - 1 && table[i] == false && table[j] == false) {
				swap(arr, table, i, j);
			}
		}
	}

	for (int i = 0; i < len; i++) {
		cout << arr[i]<< " ";
	}

	cin >> arr[1];
	return 0;
}