class Solution: def missingNumber(self, nums: List[int]) -> int: # ans 初始化为 0 ^ n = n ,因为下标的范围为 [0, n - 1] ans: int = len(nums) # 带下标遍历 nums for i, num in enumerate(nums): # 异或下标 ans ^= i # 异或数组内的数 ans ^= num # 此时 ans 就是 [0,...
# 需要导入模块: from solve import Solution [as 别名]# 或者: from solve.Solution importmissingNumber[as 别名]defmain():sol = Solution() nums = [0,1,2,3,4,5,6,7,8]printsol.missingNumber(nums)
開發Python 專案時,可能會發現需要切換到命令視窗來執行特定指令碼或模組,執行 PIP 命令或搭配使用其他工具與您的程式碼。 若要改善工作流程,可以在 Visual Studio 中將自訂命令新增至 Python 專案功能表。 自訂 Python 命令可以在主控台視窗或 Visual Studio 的 [輸出] 視窗中執行。 也可以使用規則運算式來指示 Visu...
例如,我们还可以将这个文件路径追加到一个列表中,然后对列表进行迭代以处理每个文件: # Iterate over the files in the current "root"forfile_entryinfiles:# create the relative path to the filefile_path = os.path.join(root, file_entry)print(file_path) 我们也可以使用root + os.sep() + file_en...
We need to handle these exceptions in order to ensure the normal execution of the program. Some of the common exceptions that occur in Python programs while executing are: NameError: This error occurs when a name is not found. ZeroDivisionError: When a number is divided by zero, ZeroDivisionEr...
题目地址:https://leetcode.com/problems/missing-number/#/description 题目描述 Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. ...
self.assertEqual(2, s.missingNumber([0,1,3])) 开发者ID:pengmeng,项目名称:LeetCode,代码行数:5,代码来源:test_leetSolution.py 注:本文中的LeetSolution.LeetSolution.missingNumber方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原...
# conditional.1.pylate =Trueiflate:print('I need to call my manager!') 这可能是最简单的例子:当late被传递给if语句时,late充当条件表达式,在布尔上下文中进行评估(就像我们调用bool(late)一样)。如果评估的结果是True,那么我们就进入if语句后面的代码体。请注意,print指令是缩进的:这意味着它属于由if子句...
Only pip comes bundled in the standard Python installation. If you want to use any alternatives listed above, then you have to follow the installation guides in their documentation. With so many options, you’re sure to find the right tools for your programming journey!Conclusion...
# Find and filter out rows with inconsistent passenger totals inconsistent_pass = flights[~passenger_equ] consistent_pass = flights[passenger_equ] 例15 下面是包含一组用户的用户id、生日和年龄值的另一个示例。 例如,我们可以通过减去今天的日期和每个生日之间的年数来确保年龄和生日列是正确的。