题解 | #八进制#

#include <iostream>
#include <vector>
using namespace std;

vector<int> res;

int main() {

    int n;

    while(cin >> n){

        while (n != 0) {
            res.push_back( n % 8);
            n /= 8;
        }
        for(int i = res.size() - 1; i >= 0; i --)
            cout << res[i];

        res.clear();
        cout << endl;
    }

    return 0;
}