讀LockSupport源碼,locksupport源碼 LockSupport類簡介LockSupport類是其他類實現鎖和同步的基礎 * Basic thread blocking primitives for creating locks and other * synchronization classes.讀了源碼就會知道,這個類主要利用了Unsafe類中提供的part和unpart兩個方法.而LockSupport類暴露出來的兩個核心介面也是part和unpart兩個.
PAT 1002 Hello World for U (20),pat1002Given any string of N (>=5) characters, you are asked to form the characters into the shape of U. For example, "helloworld" can be printed as:h de ll rlowoThat is, the characters must be printed
[LeetCode] Maximal Square,leetcodemaximal Given a 2D binary matrix filled with 0’s and 1’s, find the largest square containing all 1’s and return its area.For example, given the following matrix:1 0 1 0 0 1 0 1 1 1 1 1 1 1 1 1 0 0 1 0Return 4.
資料結構與演算法分析-樹、二叉樹、二叉尋找樹,二叉樹尋找演算法 作者:xiabodan 出處:http://blog.csdn.net/xiabodan 二叉樹二叉樹的申明:struct node { int data; struct node *left; struct node *right;};建立一個節點/* newNode() allocates a new node with the given data and NULL left and
[LeetCode] Count Complete Tree Nodes,leetcodenodes Given a complete binary tree, count the number of nodes.Definition of a complete binary tree from Wikipedia: In a complete binary tree every level, except possibly the last, is completely
LeetCode【8】. String to Integer (atoi),leetcodeatoiString to Integer (atoi)Implement atoi to convert a string to an integer.Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask