C++题解 | #扭蛋机#

#include <iostream>
using namespace std;

int main() {
    int n;
    string ans="";
    cin>>n;
    while (n>=0) {
        if(n==0){
            cout<<ans;
            return 0;
        }
        if(n%2==0){
            n=(n-2)/2;
            ans="3"+ans;
        }
        else if (n>0) {
            n=(n-1)/2;
            ans="2"+ans;
        }
    }
    cout << ans;
    return 0;
}