IT公司100题-6-根据上排给出十个数，在其下排填出对应的十个数

 1 // 6.cc
 2 #include <iostream>
 3 using namespace std;
 4 #define MAX_LEN 10
 5 
 6 class Object {
 7 private:
 8     int A[MAX_LEN];
 9     int B[MAX_LEN];
10     bool m_success;
11 
12 public:
13     Object();
14     ~Object() {}
15 
16 public:
17     int* get_B();
18     void set_next_B();
19     int get_frequency(int value);
20 };
21 
22 Object::Object() {
23     m_success = false;
24 
25     // initiate A
26     for (int i = 0; i < MAX_LEN; i++)
27         A[i] = B[i] = i;
28 }
29 
30 int* Object::get_B() {
31     int i = 0;
32     while (!m_success) {
33         i++;
34         set_next_B();
35     }
36 
37     return B;
38 }
39 
40 // 设置B中的值
41 void Object::set_next_B() {
42     bool flag = true;
43 
44     for(int i = 0; i < MAX_LEN; i++) {
45         int f = get_frequency(i);
46         if(B[i] != f) {
47             B[i] = f;
48             flag = false;
49         }
50     }
51     m_success = flag;
52 }
53 
54 // 统计value在B中出现的次数
55 int Object::get_frequency(int value) {
56     int count = 0;
57     for(int  i = 0; i < MAX_LEN; i++) {
58         if(B[i] == value)
59             count++;
60     }
61 
62     return count;
63 }
64 
65 int main() {
66     Object obj;
67     int* res = obj.get_B();
68 
69     for (int i = 0; i < MAX_LEN; i++)
70       cout << i << " ";
71     cout << endl;
72 
73     for(int i = 0 ; i < MAX_LEN; i++)
74         cout << res[i] << " ";
75     cout << endl;
76 
77     return 0;
78 }