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Add typing annotations to Python codes. (#411)

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This commit is contained in:
Yudong Jin
2023-03-12 18:49:52 +08:00
committed by GitHub
parent 2029d2b939
commit 9151eaf533
50 changed files with 577 additions and 817 deletions
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12
codes/python/chapter_searching/binary_search.py
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@ -8,7 +8,7 @@ import sys, os.path as osp
sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))
from modules import *
def binary_search(nums, target):
def binary_search(nums: List[int], target: int) -> int:
""" 二分查找（双闭区间） """
# 初始化双闭区间 [0, n-1] ，即 i, j 分别指向数组首元素、尾元素
i, j = 0, len(nums) - 1
@ -23,7 +23,7 @@ def binary_search(nums, target):
return -1 # 未找到目标元素，返回 -1
def binary_search1(nums, target):
def binary_search1(nums: List[int], target: int) -> int:
""" 二分查找（左闭右开） """
# 初始化左闭右开 [0, n) ，即 i, j 分别指向数组首元素、尾元素+1
i, j = 0, len(nums)
@ -41,13 +41,13 @@ def binary_search1(nums, target):
""" Driver Code """
if __name__ == '__main__':
target = 6
nums = [1, 3, 6, 8, 12, 15, 23, 67, 70, 92]
target: int = 6
nums: List[int] = [1, 3, 6, 8, 12, 15, 23, 67, 70, 92]
# 二分查找（双闭区间）
index = binary_search(nums, target)
index: int = binary_search(nums, target)
print("目标元素 6 的索引 = ", index)
# 二分查找（左闭右开）
index = binary_search1(nums, target)
index: int = binary_search1(nums, target)
print("目标元素 6 的索引 = ", index)