The 221g Operating SystemWhat was supposed to be a vacation, basically is turning into a anxiety wait for my passport to come back. But long story short, i am going…Jun 18, 2024Jun 18, 2024
Leetcode Problem Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary TreeGiven a binary tree where each path going from the root to any leaf form a valid sequence, check if a given string is a valid sequence in…May 1, 2020May 1, 2020
Leetcode Problem 55 Jump gameGiven an array of non-negative integers, you are initially positioned at the first index of the array.Apr 26, 2020Apr 26, 2020
Leetcode problem Leftmost Column with at Least a One(This problem is an interactive problem.)Apr 22, 2020Apr 22, 2020
Leetcode Problem 1008. Construct Binary Search Tree from Preorder Traversaleturn the root node of a binary search tree that matches the given preorder traversal.Apr 21, 2020Apr 21, 2020
Leetcode Problem 64 — Minimum Path sumGiven a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers…Apr 18, 2020Apr 18, 2020
Leetcode Problem 200 Number of IslandsGiven a 2d grid map of '1's (land) and '0's (water), count the number of islands. An island is surrounded by water and is formed by…Apr 18, 2020Apr 18, 2020
Leetcode Problem 678 — Valid Parenthesis StringGiven a string containing only three types of characters: ‘(‘, ‘)’ and ‘*’, write a function to check whether this string is valid. We…Apr 17, 2020A response icon1Apr 17, 2020A response icon1
