swap(&arr[0], &arr[i]); // 堆顶(最大)换到末尾
15:30, 27 февраля 2026Забота о себеЭксклюзив
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As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets as well as a quick look ahead at the next three launches on the calendar.
takes an array of length n and produces an array of length n