1、使用冒泡排序法将数组[8,5,6,9,2]进行排序。 2、使用二分查找发法查找有序数组[1,2,3,4,5,6,7,8,9,10,11,12]任意元素下标。
时间: 2024-03-18 07:35:54 浏览: 35
1、使用冒泡排序法将数组[8,5,6,9,2]进行排序的步骤如下:
```python
def bubble_sort(arr):
n = len(arr)
for i in range(n-1):
for j in range(n-i-1):
if arr[j] > arr[j+1]:
arr[j], arr[j+1] = arr[j+1], arr[j]
arr = [8, 5, 6, 9, 2]
bubble_sort(arr)
print(arr) # 输出:[2, 5, 6, 8, 9]
```
2、使用二分查找法查找有序数组[1,2,3,4,5,6,7,8,9,10,11,12]任意元素下标的步骤如下:
```python
def binary_search(arr, target):
left = 0
right = len(arr) - 1
while left <= right:
mid = (left + right) // 2
if arr[mid] == target:
return mid
elif arr[mid] < target:
left = mid + 1
else:
right = mid - 1
return -1
arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
target = 6
index = binary_search(arr, target)
print(index) # 输出:5
```