输入待排序记录,分别用内部排序的几种排序方法对其排序直接插入排序、希尔排序、冒泡排序、简单选择排序代码
时间: 2024-12-23 20:24:07 浏览: 19
当然可以。下面我会简要介绍四种常见的内部排序算法,并给出它们在Python中的基本实现示例:
1. **直接插入排序**(Direct Insertion Sort)
```python
def insertion_sort(arr):
for i in range(1, len(arr)):
key = arr[i]
j = i - 1
while j >= 0 and key < arr[j]:
arr[j + 1] = arr[j]
j -= 1
arr[j + 1] = key
return arr
```
2. **希尔排序**(Shell Sort)
```python
def shell_sort(arr):
gap = len(arr) // 2
while gap > 0:
for i in range(gap, len(arr)):
temp = arr[i]
j = i
while j >= gap and arr[j - gap] > temp:
arr[j] = arr[j - gap]
j -= gap
arr[j] = temp
gap //= 2
return arr
```
3. **冒泡排序**(Bubble Sort)
```python
def bubble_sort(arr):
n = len(arr)
for i in range(n):
for j in range(0, n-i-1):
if arr[j] > arr[j+1]:
arr[j], arr[j+1] = arr[j+1], arr[j]
return arr
```
4. **简单选择排序**(Selection Sort)
```python
def selection_sort(arr):
for i in range(len(arr)):
min_idx = i
for j in range(i+1, len(arr)):
if arr[min_idx] > arr[j]:
min_idx = j
arr[i], arr[min_idx] = arr[min_idx], arr[i]
return arr
```
请注意,这些是最基础的版本,实际应用中可能会有优化处理。
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