包括完整的非均匀B样条求解函数值、一阶导数、二阶导数代码，同时给出测试数据和非均匀B样条的讲解PPT。-Including a complete non-uniform B-spline solving function value, the first derivative, second derivative code, and gives test data and explain PPT non-uniform B-spline.

ppt about search(bfs && dfs) used in ACM_ICPC div hr div B 文件列表 B ： d()