关于c语言中一些常见的问题的源代码，例如，冒泡排序，水仙花数，求二次方程等-C language on some common problems of the source code, for example, bubble sort, daffodils, seeking quadratic equations, etc.

使用mpi 并行运算归并排序的c语言程序，mpicc编译，mpi 运行-Mpi parallel computing using merge sort of c language program, mpicc compile, mpi run