PAT-B 1017. A除以B

1. 字符串模拟大数除法

2. 测试点1考察000000 / x的情况，此时应输出0 0

代码：

#include <iostream>
#include <string>

using namespace std;

int main()
{
string a;
int b, now=0;
bool non_zero = false;
cin >> a >> b;

for (size_t i = 0; i < a.size(); ++ i)
{
now = 10*now + a[i] - 48;
if (non_zero == true)
{
cout << now/b;
} else if (now/b != 0)
{
cout << now/b;
non_zero = true;
}
now %= b;
}
if (non_zero == false)
{
cout << 0;
}
cout << " " << now;

return 0;
}