题解 | 八进制

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

int main(){
	int n;
	while(cin>>n){
		int k = 8;	//8进制
		string str;
		while(n>=k){
			int m = n%k;
			n = n/k;
			str += to_string(m);
		}
		str+=to_string(n);
		reverse(str.begin(),str.end());
		cout<<str<<endl;
	}
}