-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathheap_sort.cpp
More file actions
102 lines (87 loc) · 2.62 KB
/
heap_sort.cpp
File metadata and controls
102 lines (87 loc) · 2.62 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
# include <iostream>
using namespace std;
// 使用shell排序算法排序
int main(){
int input_data[20] =
{32, 2, 43, 0, 43,
11, 48, 983, 56, 43,
11, 0, 87, 66, 42,
31, 22, 20, 98, 35};
// 输入部分
{
// for(int i = 0; i < 20; i++)
// {
// /* code */
// try
// {
// cout << "please input the value of " << i << endl;
// cin >> input_data[i];
// /* code */
// }
// catch(const std::exception& e)
// {
// std::cerr << e.what() << '\n';
// }catch(io_errc e){
// cout << e;
// }
// }
// cout << endl << "input complete!" << endl;
// cout << "input result:";
for(int i = 0; i < 20; i++)
cout << input_data[i] << ", ";
cout << endl;
}
// 算法部分
cout << "into calculation area" << endl;
try
{
// 限定比较范围
for (int j = 19; j > 0; j--)
{
cout << "the value of j:" << j << endl;
int temp;
// 遍历父节点
for (int i = j / 2; i >= 0; i--)
{
//保证子节点不越界
if (2 * (i + 1) <= j)
{
// 比较父节点与左孩子节点的大小
if (input_data[i] < input_data[2 * i + 1])
{
temp = input_data[i];
input_data[i] = input_data[2 * i + 1];
input_data[2 * i + 1] = temp;
}
// 比较父节点与右孩子节点的大小
if (input_data[i] < input_data[2 * (i + 1)])
{
temp = input_data[i];
input_data[i] = input_data[2 * (i + 1)];
input_data[2 * (i + 1)] = temp;
}
}
}
// 把大根交换到最后一个位置
temp = input_data[0];
input_data[0] = input_data[j];
input_data[j] = temp;
}
}
catch(const std::exception& e)
{
cout << "appear some error!" << endl;
std::cerr << e.what() << '\n';
}
// 输出部分
{
cout << "into output raea" << endl;
cout << "sort completed!" << endl;
cout << "sorted result:";
for(int i = 0; i < 20; i++)
{
cout << input_data[i] << ",";
}
}
return 0;
}