题解 | #迭代器遍历set#

#include<bits/stdc++.h>
using namespace std;
int main(){
	set<int>s;
	// write your code here......
	for (int i{0}, num; i < 5; i++) {
		cin >> num;
		s.insert(num);
	}
	
	for (auto& x: s) {
		cout << x << " ";
	}
	return 0;
}