原创 如何學習一門新的技術？
學習方法： 第一大步： 認知，瞭解 瞭解百科定義 解決了什麼問題 同類技術有哪些 瞭解技術組成部分 思考爲什麼技術會出現 第二大步： 學語法，學用法 視頻 博客 權威書 文檔 第三大步： 局部練習， 小型實戰，搭建環境 遇到坑 多思考
2020-07-01 00:20:19
原创 Race Car
Your car starts at position 0 and speed +1 on an infinite number line. (Your car can go into negative positions.) Your
2020-07-01 00:20:19
原创 Shortest Subarray with Sum at Least K
Return the length of the shortest, non-empty, contiguous subarray of A with sum at least K. If there is no non-empty su
2020-07-01 00:20:19
原创 Valid Mountain Array
Given an array A of integers, return true if and only if it is a valid mountain array. Recall that A is a mountain arra
2020-07-01 00:20:19
1
原创 Number of Submatrices That Sum to Target
Given a matrix, and a target, return the number of non-empty submatrices that sum to target. A submatrix x1, y1, x2, y2
2020-07-01 00:20:19
原创 Stone Game III
Alice and Bob continue their games with piles of stones. There are several stones arranged in a row, and each stone has
2020-07-01 00:20:17
原创 Positions of Large Groups
In a string S of lowercase letters, these letters form consecutive groups of the same character. For example, a string
2020-07-01 00:20:17
原创 Valid Word Abbreviation
Given a non-empty string s and an abbreviation abbr, return whether the string matches with the given abbreviation. A s
2020-07-01 00:20:17
原创 Smallest Sufficient Team
In a project, you have a list of required skills req_skills, and a list of people. The i-th person people[i] contains
2020-07-01 00:20:17
原创 Minimum Insertion Steps to Make a String Palindrome
Given a string s. In one step you can insert any character at any index of the string. Return the minimum number of ste
2020-07-01 00:20:17
原创 Tiling a Rectangle with the Fewest Squares
Given a rectangle of size n x m, find the minimum number of integer-sided squares that tile the rectangle. Example 1:
2020-07-01 00:20:17
1
原创 Strong Password Checker
A password is considered strong if below conditions are all met: It has at least 6 characters and at most 20 characters
2020-07-01 00:20:17
原创 All O`one Data Structure
Implement a data structure supporting the following operations: Inc(Key) - Inserts a new key with value 1. Or increment
2020-07-01 00:20:17
原创 Maximum Profit in Job Scheduling
We have n jobs, where every job is scheduled to be done from startTime[i] to endTime[i], obtaining a profit of profit[i
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原创 Minimum Cost to Make at Least One Valid Path in a Grid
Given a m x n grid. Each cell of the grid has a sign pointing to the next cell you should visit if you are currently in
2020-07-01 00:20:17