题目: 给定字符串J 代表石头中宝石的类型,和字符串 S代表你拥有的石头. S 中每个字符代表了一种你拥有的石头的类型,你想知道你拥有的石头中有多少是宝石. You're given strings J representing the types of stones that are jewels, and S representing the stones you have. Each character in S is a type of stone you have. You want…
Palindrome Number Total Accepted: 19369 Total Submissions: 66673My Submissions Determine whether an integer is a palindrome. Do this without extra space. 推断一个数整数是不是回文?比如121,1221就是回文,好吧,直接利用前面写过的[Leet Code]Reverse Integer--"%"你真的懂吗? 只是这里要考虑翻转后,数值…