数据结构的选择与算法效率——从IOI98试题PICTURE谈起 高级数据结构：线段树-The choice of data structure and algorithm efficiency- from IOI98 questions about high-level data structure PICTURE: segment tree

基于RANSAC算法的三维点云形状检测系统-RANSAC algorithm-based three-dimensional point cloud shape detection system

ransac算法的介绍，包括定义和功能，以及步骤-ransac algorithm introduced, including the definition and function, as well as steps