原创 Leetcode 動態規劃最長公共子序列+ 198HouseRobbingI+II +746Min Cost Climbing Stairs

動態規劃解解題思路總結: 一個很複雜的問題可以分解成形式類似,模式更小的問題。先嚐試解決這個小問題,再擴大到大問題。要從小問題中看出動態規劃狀態轉移式(表達式)。 最長公共子串LCSubstring str1='abcdscde' st

原创 期末考覈SpringBoot進階之Web進階

https://www.imooc.com/video/14343 廖師兄SpringBoot進階 AOP是一種思想,不是一種語言 像.NET,C#,Java都有AOP的思想 橫向看的紅箭頭是切面,就把邏輯從具體的業務邏輯中抽

原创 Leetcode665 (Array) Non-decreasing Array +Leetcode674 Longest Continuous Increasing Subsequence

Given an array with n integers, your task is to check if it could become non-decreasing by modifying at most 1 element

原创 Kaggle Titanic 模型優化提升第三彈

參考網站: 模型融合的理論教程:http://m.blog.csdn.net/shine19930820/article/details/75209021

原创 739 Daily Temperatures

Given a list of daily temperatures, produce a list that, for each day in the input, tells you how many days you woul

原创 Kaggle Titanic 機器學習實踐筆記(二)

在做完數據分析以後,先對測試集有個瞭解 test_data.describe() Out[1]: PassengerId Pclass Age SibSp Parch

原创 Leetcode 215 Kth Largest Element in an Array

Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not t

原创 Leetcode Hash Table專題 389. Find the Difference+771. Jewels and Stones+554. Brick Wall

Given two strings s and t which consist of only lowercase letters. String t is generated by random shuffling string s a

原创 Leetcode350 Intersection of Two Arrays II &Leetcode Intersection of Two Arrays

Given two arrays, write a function to compute their intersection. Example: Given nums1 = [1, 2, 2, 1], nums2 = [2,

原创 463 IsLand Perimeter

You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid c

原创 118.Pascal's Triangle

118. Pascal's Triangle Given numRows, generate the first numRows of Pascal's triangle. For example, given numRows 

原创 Leetcode141. Linked List Cycle

Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 這道題的經

原创 Leetcode 刷題 Binary Search Easy難度經驗總結

[TOC]刷了4道Binary Search  Easy難度的題二叉搜索思想好想,難在邊界的控制上,於是乎我就在思考能不能背下一個定式,遇到二分搜索的題目就套這個定式。我做的第一道二叉搜索的題目就是一個很好的定式:#744. Find S

原创 Kaggle Titanic 機器學習實踐筆記

參考網站: https://www.cnblogs.com/darkknightzh/p/6117528.html   http://blog.csdn.net/han_xiaoyang/article/details/49797143

原创 期末考覈突擊之SpringBoot自學筆記

跟着慕課網這個視頻突擊了一下:https://www.imooc.com/video/13589 這個教程挺好的,第一節課主要講用IDEA創建spring boot 應用程序 後面的課程講解做girls這個網站,是一個demo。 個人覺得