The result of the code is 0,0 and
num++ increases the value of
num in the book's commentary, but it is hard to understand that the increased value disappears because the num is released when the function returns. Please solve it.
num++ is a grammar structure that outputs
num==0 first and then
num+1? I think it'll be fine if this part is resolved.
num++ is a grammatical structure that outputs
num==0 and then
++num and the result will be different.
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