Flex布局 通过给父盒子添加flex属性，来控制子盒子的位置和排列方式 常见的父项属性flex-direction设置主轴方向默认主轴是水平的x轴 主轴和侧轴是会变化的， flex-direction 设置谁为主轴，剩下的就是侧轴 属性值说明row从...

Given an array, rotate the array to the right by k steps, where k is non-negative.

Sort a linked list in O(n log n) time using constant space complexity.

Given a linked list, determine if it has a cycle in it.

Given a linked list, return the node where the cycle begins. If there is no cycle, return null.

Given a singly linked list, determine if it is a palindrome.

Given an array nums of n integers where n > 1, return an array output such that output[i] is equal to the product of all the elements of nums except nums[i].

Given an integer array of size n, find all elements that appear more than ⌊ n/3 ⌋ times.

Given two arrays of length m and n with digits 0-9 representing two numbers. Create the maximum number of length k <= m + n from digits of the two. The relative...

Given a pattern and a string str, find if str follows the same pattern.