摘要：
The basic idea is as follows:Create anew_headthat points toheadand use it to locate the immediate node before them-th (notice that it is1-indexed) nod... 阅读全文
摘要：
This link has a very neat code, which is rewritten below using stacksince thepushandpopoperations of it areO(1)time, while thepop_backandpush_backofve... 阅读全文