iOS长截图

背景

Twitter 上看到TaioApp的作者说，iOS 系统有支持长截图的API——UIScreenshotService，从 iOS 13开始就可以使用，下午的时候就在自己的 APP 中体验了一下。

733. Algorithem_Max Area of Island

You are given an m x n binary matrix grid. An island is a group of 1’s (representing land) connected 4-directionally (horizontal or vertical.) You may assume all four edges of the grid are surrounded by water.

733. Flood Fill

An image is represented by an m x n integer grid image where image[i][j] represents the pixel value of the image.

Algorithem_Depth-First Search

3. Longest Substring Without Repeating Characters

Given a string s, find the length of the longest substring without repeating characters.

Algorithem_TwoPointersOfLinked List

876. Middle of the Linked List

Given the head of a singly linked list, return the middle node of the linked list.

If there are two middle nodes, return the second middle node.

Algorithem_ReverseWords

Reverse Words in a String III

Given a string s, reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order.

Algorithem_TwoPointers

Two Sum II - Input Array Is Sorted

Given a 1-indexed array of integers numbers that is already sorted in non-decreasing order, find two numbers such that they add up to a specific target number. Let these two numbers be numbers[index1] and numbers[index2] where 1 <= index1 < index2 <= numbers.length.

Return the indices of the two numbers, index1 and index2, added by one as an integer array [index1, index2] of length 2.

The tests are generated such that there is exactly one solution. You may not use the same element twice.

Your solution must use only constant extra space.

Algorithem_MoveZeros

Given an integer array nums, move all 0’s to the end of it while maintaining the relative order of the non-zero elements.

Note that you must do this in-place without making a copy of the array.

Algorithem_ReverseArray

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

Algorithem_Sort

Given an integer array nums sorted in non-decreasing order, return an array of the squares of each number sorted in non-decreasing order.