Cycle detection in directed graphs, topological sort, Kahn’s algorithm. These are the ones that feel simple until you’re implementing them and something quietly goes wrong. Same idea as BFS: try to ...

Excel is a powerful tool that can save you a lot of time and effort in analyzing data. One of its most commonly used functions is the IF statement. An IF statement tests a condition and returns one ...

In this tutorial, we build an end-to-end cognitive complexity analysis workflow using complexipy. We start by measuring complexity directly from raw code strings, then scale the same analysis to ...

Python dataclasses work behind the scenes to make your Python classes less verbose and more powerful all at once. Here's an introduction to using dataclasses in Python. Everything in Python is an ...

不过这里有更好的写法，用 elif 和 else 替代后面的4个 if： ifx > 0andy > 0:print('第1象限')elify > 0:print('第2象限')elifx < 0:print('第3象限')elifx > 0:print('第4象限')else:print('不属于任何象限') elif 和 else 都是 if 语句的可选分支。 else 作用如下图所示： if ...

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Imagine you are a calculator 🔢🔣 throughout the post. Come on there is no loss in imagining this. In fact, it will help you understand conditional statements python if-else-elif and will also enable ...