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  1. uzhonok

    num*num, at compile time or runtime

    Hello.<br><br>Any normal C/C++ compiler always&nbsp;&nbsp;tries<br>to calculate all possible expressions in<br>preprocessig stage.<br><br>In your first case, if you declared a as a local variable, compiler will calculate <br>50*20 in preprocessing stage and will proguce<br>the approximately...

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