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本文介绍如何使用一些sql操作符

严蔚敏编写的《数据结构》第9章的答案，全部为源码-the answers of chapter 9 of a book called ‘Data Structures’ writen by Yan Wei Min

里面有很多有用的公式，很有利于算法的学习，希望与大家一起分享-There are many useful formula for the learning algorithm

这个是个简单的关于出票申请的处理，里边还有小型的进销存。-This is a simple application on the handling of the vote, there are small Invoicing inside.

解决了BruteForce算法效率低下的问题，并且在该基础上完成了子串重复时的性能优化

稀疏矩阵的基本运算。-sparse matrix of basic operations.

（1）满足均匀分布的[M,N]区间随机数，其中M,N是正整数。 (2) 满足指数分布的[M,N]区间随机数，其中M,N是正整数。 -(1) satisfy the uniform distribution of [M, N] interval of random numbers, in which M, N be a positive integer. (2) to meet the exponential distribution of [M, N] interval of random numbers, in which M, N be a positive integer.

最短路径问题C++描述-Shortest Path Problem Description C

图函数，实现插入，删除，保存，恢复等功能-Map function, the realization of insert, delete, save and restore functions

数据结构，清华大学出版社，课件，严蔚敏编著-Data structure, Tsinghua University Press, courseware, edited by Yan Wei-min