我自己写的小程序，都是数据结构时候的试验，花了心血的，主要包括二叉树的一些遍历算法（都是非递归实现的），Huffman编码，还有多项式的混合运算，包括加减乘除-I write small programs, are data structures when the experiment took effort, and mainly includes a number of binary tree traversal algorithm (both non-recursive implementation), Huffman coding, as well as mixed polynomial operations, including the addition and subtraction multiplication and division