存放日常开发所撰写的Markdown文件。
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225 B

栈:FEDCBA

出三

栈:FED

入三 ;队:CBA

栈:FEDZYX

退all 入队

栈:空 队:FEDZYXCBA

63

64

2n = n0 +(n0 +1) + 1

64 + 63 + 1 = 128

2x+1 = 256

x = 257/2