【简答题】A speed bump toward achieving this balance is the fact that no two days are alike for those whose lives revolve around travel. Ironically, this is also a part of the appeal for many modern nomads I sp...
【简答题】设A、B、C、D、E五个元素依次进栈(进栈后可立即出栈),问能否得到下列序列。若能得到,则给出相应的Push和Pop序列;若不能,则说明理由。(1) A, B, C, D, E; (2) A, C, E, B, D; (3) C, A, B, D, E; (4) E, D, C, B, A。