X So here I'm declaring another variable called X, and this is totally legitimate because I already know that if I'm implementing a function like swap or increment, I can absolutely take input.
这里我声明另一个变量,这个完全是合法的因为我已经知道,如果我执行一个像swap,或,increment的函数,我完全可以携带输入。
and I don't know how much I've said so far but, yeah, totally different than here,
我不确定我说了多少不同之处,但是总的来说,跟这里有很多不同,
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