Dogs act like toddlers when you need help - but cats just watch. Scientists compared 3 groups: pet dogs, cats, and human toddlers in an experiment where a human parent hides and pretends to look for an object. 75% of dogs and children helped. Cats only helped if it was in their personal interest.

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Today's Wordle answer should be easy to solve if you sometimes feel faint.

В ЦБ объяс

int i = low + 1; // 从左向右找大于pivot的