929. Unique Email Addresses-独特的电子邮件地址
Every email consists of a local name and a domain name,... » 阅读全文
925. Long Pressed Name-长按键入
Your friend is typing his name into a keyboard. Sometim... » 阅读全文
922. Sort Array By Parity II-按奇偶排序数组 II
Given an array A of non-negative integers, half of the ... » 阅读全文
917. Reverse Only Letters-仅仅反转字母
给你一个字符串s，根据下述规则反转字符串： 所有非英文字母保留在原有位置。 所有英文字母（小写或大写）位置反转... » 阅读全文
914. X of a Kind in a Deck of Cards-卡牌分组
In a deck of cards, each card has an integer written on... » 阅读全文
908. Smallest Range I-最小差值 I
Given an array A of integers, for each integer A[i] we ... » 阅读全文
905. Sort Array By Parity-按奇偶排序数组
Given an array A of non-negative integers, return an ar... » 阅读全文
897. Increasing Order Search Tree-递增顺序查找树
Given the root of a binary search tree, rearrange the t... » 阅读全文
896. Monotonic Array-单调数列
An array is monotonic if it is either monotone increasi... » 阅读全文
888. Fair Candy Swap-公平的糖果棒交换
Alice and Bob have candy bars of different sizes: A[i] ... » 阅读全文