摘要： Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length.Do not allocate extra space for... 阅读全文

摘要： Given a linked list, reverse the nodes of a linked list k at a time and return its modified list. If the number of nodes is not a multiple of k then left-out nodes in the end should remain as it is. ... 阅读全文