京东笔试题：将十进制进制数n转化成任意n-1进制数，求各位数字之和

#include<iostream>

using namespace std;

int sum = 0;

void convert(int a, int b)

{
int c = a / b, r = a%b;
if (c == 0)
{
sum = sum + r;
cout << sum << endl;
}
else
{
sum = sum + r;
convert(c, b);
}

}

int main()

{
int a, b;
cin >> a >> b;
convert(a, b);

}