In the binary search program on page 112, why did we write mid = beg + (end - beg) / 2; instead of mid = (beg + end) /2;

KasimKamal

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2022-07-04

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In the binary search program on page 112, why did we write mid = beg + (end - beg) / 2; instead of mid = (beg + end) /2;?

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KasimKamal

2022-07-04

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First, there is no operator `+` for two iterators.

Second, for arithmetic types, using `mid = (beg + end) / 2` may lead to overflow.

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