[C++] 백준 10813 공 바꾸기

#include <iostream>
using namespace std;

int main() {

	int n, m;
	int arr[101] = { 0 };
	int b1, b2, tmp;
	cin >> n >> m;

	for (int i = 1; i <= n; i++) {
		arr[i] = i;
	}

	for (int i = 0; i < m; i++) {
		cin >> b1 >> b2;

		tmp = arr[b1];
		arr[b1] = arr[b2];
		arr[b2] = tmp;
	}
	
	for (int x = 1; x <= n; x++) { 
		cout << arr[x] << ' ';
	}


	return 0;
}