基于c的一个销售管理系统

gperftools是google开发的一款非常实用的工具集，主要包括：性能优异的malloc free内存分配器tcmalloc；基于tcmalloc的堆内存检测和内存泄漏分析工具heap-profiler,heap-checker；基于tcmalloc实现的程序CPU性能监测工具cpu-profiler。

poj典型题目解题思路详解 包含源代码和解题时应注意的问题及题目陷阱设计分析-POJ typical Oklahoma Elaborates on topics include source code and they should pay attention to solving the problems and pitfalls topic Design Analysis

用回溯法求解KnightTour问题 【KnightTour问题】在一个8×8的棋盘上，检验以某一位置作为出发点的棋子能否遍历一次棋盘上的所有棋格，且最后回到出发点。（备注：棋子每次只能沿东、南、西、北、东南、西南、东北、西北方向走一步！！)-Method with back issues KnightTour】 【KnightTour issues in a 8 × 8 chessboard, the examination for the position as the starting point of a piece of a chessboard can traverse all the chess grid, and the final return to the starting point. (Note: each piece can only be along the east, south, west, north, southeast, southwest, northeast, northwest direction step!!)

该程序实现对一维数据轴上的最临近点的求解问题 采用方法：计算每对顶点间的距离，比较之 效率为O(n2)-the process of achieving a dimensional data axis near the point of the methodology used to solve the problem : for each pair of vertices the distance, a comparison of the efficiency of O (n2)

简单的文本比较工具，比较的是文本，不是文件-Simple text comparison tool to compare the text, not files

内部查找与排序算法，这个是排序的一个非常重要的算法，自己编的，有很多不足，希望大家发表意见！-internal search and sorting algorithm, this is sort of a very important algorithm own series, there are many deficiencies in the hope that your views!

PCRE 开源的Regular Expression 源代码,Perl 流派-Regular Expression of the open source PCRE source code, Perl Schools

using public Decrypt and Encrypt message. just basic introduction how to dencrypt and decrypt.

c_astretch,this used for contrast auto stretch too,but this is a program that GIMP used in the past ,on the other hand we can understand the program more easily

很 多 特 级 效 果-many special effects