原创 安卓文件讀取
private void viewfile(String path) { StringBuffer buff = new StringBuffer(); BufferedReader reader; String st
2020-02-21 21:07:27
原创 Android學習一——動態添加組件與刪除，可見性設置，imagebutton簡單使用
一、動態添加組件 在佈局爲水平線性佈局的情況下，添加的佈局會直接加在後面，這裏只是簡單介紹添加布局的方法取到上下文，取到要添加組件的佈局，new一個要添加的組件，設置組件相關屬性，添加組件。 // 動態添加textview mcontex
2020-02-21 21:07:27
原创 leetcode 6. ZigZag Conversion
題目 The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to di
2018-09-04 04:34:34
原创 算法概論課後8.9
題目： 給定一組集合{S1,S2,S3,…,Sn}和預算b，求一個集合H，其中H和所有Si相交且H的規模不超過b，前提是這個集合存在。求證該問題是NP完全問題 證明 假設有一個圖G(V,E)，則把該圖的每一條邊對應一個集合Si，邊上的兩
2018-09-04 04:34:34
原创 算法：LeetCode240
題目 Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties:
2018-09-04 04:34:34
原创 leetcode 96. Unique Binary Search Trees
1.題目 Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example, Given n =
2018-09-04 04:34:34
原创 leetcode322. Coin Change
題目 You are given coins of different denominations and a total amount of money amount. Write a function to compute the f
2018-09-04 04:34:34
原创 leetcode523. Continuous Subarray Sum
題目 Given a list of non-negative numbers and a target integer k, write a function to check if the array has a continuous
2018-09-04 04:34:34
原创 leetcode 3. Longest Substring Without Repeating Characters
題目 Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb",
2018-09-04 04:34:34
原创 leetcode 151. Reverse Words in a String
1.題目 Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is
2018-09-04 04:34:34
原创 算法：LeetCode5. Longest Palindromic Substring
題目 Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000.
2018-09-04 04:34:34