[백준 2750번] 수 정렬하기 / C++

#include<iostream>
#include<algorithm>
#include<string>
using namespace std;

int main() {
	int *arr;
	int num;
	cin >> num;
	arr = new int[num];
	for (int i = 0; i < num; i++)
		cin >> arr[i];
	sort(arr, arr + num);
	cout << endl;
	for (int i = 0; i < num; i++)
		cout << arr[i] << endl;
}