because POSIX has a function for creating a stack)
1. 建堆：将数组构建成大顶堆（父节点 = 子节点）
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Carson Schmidt and his friend spotted the man in distress after noticing a pair of skis protruding from the snow. The pair sprang into action, digging him out before he suffocated.
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36