A除以B问题

 1 #include<iostream>
 2 #include<vector>
 3 #include<string>
 4 using namespace std;
 5 
 6 int main()
 7 {
 8     string a;
 9     int b;
10     cin >> a >> b;
11     vector<int> out;
12     int divisor=0;//for循环中单次除法的除数
13     //计算商
14     for (int i = 0; i < a.size(); i++)
15     {
16         divisor =divisor*10+ (a[i]-'0');
17         if ((divisor < b)&&(i==0))
18             continue;
19         if (divisor < b)
20             out.push_back(0);
21         else{
22             out.push_back(divisor / b);
23             divisor = divisor%b;
24         }
25     }
26     for (int i = 0; i < out.size(); i++)
27         cout << out[i];
28     cout << " " << divisor;
29     system("pause");
30     return 0;
31 }