常用算法的C语言实现方法，如迭代法，穷搜法，递推法等等。-commonly used algorithm in C language, such as iterative method, Anything, recursion, and so on.

算法设计中重点的几个函数算法，含有递归、堆栈、背包等-Several function algorithm algorithm design focus, containing recursion, stack, backpacks, etc.