Microsoft is famous for asking puzzle-type interview questions, and the most famous one is "why are manhole covers round?"

微软总喜欢提出各种各样的面试问题，其中最有名的是“为什么下水道井盖是圆的？”

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There's a whole bunch of blocks that we'll look at in more fun detail on Friday but I'm going to pick the easiest one here and I'm going to type Hello CS50 in this string, "Hello CS50", zooming in say how nice the puzzle pieces are nicely interlocked?

今天我们看到的各种图块,到下周五我会仔细讲解其中的精妙之处,但今天我只想举一个最简单的例子,我要在这儿键入字符串，放大窗口，然后看看这漂亮的图形和文字,是如何美妙地连结在一起的？

哈佛公开课 - 计算机科学课程节选

"Putting that puzzle together with the right type of individuals is big, " Towers said.

WSJ: D-Backs Get Down and Dirty

The puzzle is then more one of poker-type psychology than pure mathematics.

ECONOMIST: Letters | The