摘要： 题目地址：https://leetcode.com/problems/word-pattern/description/Given a pattern and a string str, find if str follows the same pattern.Her... 阅读全文

摘要： 题目地址：https://leetcode.com/problems/missing-number/description/Given an array containing n distinct numbers taken from 0, 1, 2, ..., n,... 阅读全文