原创 點滴生活-2020年4月22日
敢問路在何方 最近又陷入新一輪“憂鬱”，一種不知道未來在哪裏的憂鬱。 2019年看了一部電影，對我感觸特別深，就先從電影說起吧。這部電影是中國機長，首先點評一下這個電影，劇情很好，拍的也挺好，反正看後覺得挺有意思。之所以感觸深，是想說說這
2020-04-22 22:46:17
原创 leetcode之Count and Say
這個題目關鍵是理解題目。別人是這樣理解的。 1 1個1，即11 2個1，即21 1個2，1個1，即1211， 1個1,1個2,2個1，即111221， 3個1,2個2,1個1，即312211 The count-and-sa
2020-02-20 22:57:51
原创 leetcode Symmetric Tree
Symmetric Tree My Submissions Question Solution Total Accepted: 70743 Total Submissions: 222922 Difficulty: Ea
2020-02-20 22:57:51
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原创 leetcode Merge Sorted Array
Merge Sorted Array My Submissions Question Solution Total Accepted: 67179 Total Submissions: 231573 Difficult
2020-02-20 22:57:51
原创 http://www.zhihuishi.com/source/1.html
http://www.zhihuishi.com/source/1.html
2020-02-20 22:57:51
原创 leetcode Plus One
Plus One Total Accepted: 61952 Total Submissions: 205031My Submissions Question Solution Given a non-neg
2020-02-20 22:57:51
原创 leetcode 67Add Binary
Add Binary My Submissions Question Solution Total Accepted: 55613 Total Submissions: 225733 Difficulty: Easy
2020-02-20 22:57:51
原创 拉格朗日對偶（Lagrange duality）
2 拉格朗日對偶（Lagrange duality） 先拋開上面的二次規劃問題，先來看看存在等式約束的極值問題求法，比如下面的最優化問題： 目標函數是f(w)，下面是等式約束。通常解法是引入拉格
2020-02-20 22:57:51
原创 leetcode Length of Last Word
Length of Last Word Total Accepted: 64034 Total Submissions: 235032My Submissions Question Solution Given a
2020-02-20 22:57:51
原创 leetcode Balanced Binary Tree
Balanced Binary Tree My Submissions Question Solution Total Accepted: 72116 Total Submissions: 225116 Difficu
2020-02-20 22:57:51
原创 ROC曲線-閾值評價標準
ROC曲線指受試者工作特徵曲線 / 接收器操作特性曲線(receiver operating characteristic curve), 是反映敏感性和特異性連續變量的綜合指標,是用構圖法揭示敏感性和特異性的相互關係，它通過將連續變
2020-02-20 22:57:51
原创 leetcode Maximum Depth of Binary Tree
Maximum Depth of Binary Tree My Submissions Question Solution Total Accepted: 85301 Total Submissions: 188185
2020-02-20 22:57:51
原创 leetcode Binary Tree Level Order Traversal II
Binary Tree Level Order Traversal II My Submissions Question Solution Total Accepted: 52308 Total Submissions:
2020-02-20 22:57:50
原创 leetcode36Valid Sudoku
// test36ValidSudoku.cpp : 定義控制檯應用程序的入口點。 // #include "stdafx.h" #include
2020-02-20 22:57:50
原创 leetcode 70Climbing Stairs
Climbing Stairs My Submissions Question Solution Total Accepted: 68776 Total Submissions: 198955 Difficulty:
2020-02-20 22:57:50