摘要:
Reverse digits of an integer.Example1:x = 123, return 321Example2:x = -123, return -32思路: 很简单的思路,对x对10取余数,把x从低位到高位的数字依次提取出来,再每次对结果乘10加上新取出的个位,最后x=x/1... 阅读全文
摘要:
Given a sorted linked list, delete all duplicates such that each element appear onlyonce.For example,Given1->1->2, return1->2.Given1->1->2->3->3, retu... 阅读全文