求各位精英程序员们算一下

Question

Answer 1

#include<iostream>
using namespace std;
void div(int a,int b,int n){
    if(n==0){
        return;
    }
    cout<<a*10/b;
    return div(a*10%b,b,n-1);
}
int main(){
    div(1,7,6);
    return 0;
}