 #### 1796. Second Largest Digit in a String

Given an alphanumeric string s, return the second largest numerical digit that appears in s, or -1 i... #### 1791. Find Center of Star Graph

There is an undirected star graph consisting of n nodes labeled from 1 to n. A star graph is a graph... #### 1790. Check if One String Swap Can Make Strings Equal

You are given two strings s1 and s2 of equal length. A string swap is an operation where you choose ... #### DoublyBufferedData分析笔记 #### 4. Median of Two Sorted Arrays

Given two sorted arrays nums1 and nums2 of size m and n respectively, return the median of the two s... #### 509. Fibonacci Number

The Fibonacci numbers, commonly denoted F(n) form a sequence, called the Fibonacci sequence, such th... #### 842. Split Array into Fibonacci Sequence

Given a string S of digits, such as S = &quot;123456579&quot;, we can split it into a Fibonacci-like...  #### 73. Set Matrix Zeroes

Given an m x n matrix. If an element is 0, set its entire row and column to 0. Do it in-place. Follo... #### 289. Game of Life

According to Wikipedia's article: &quot;The Game of Life, also known simply as Life, is a cellular a...