Closest-Pair Problem of Divide and Conquer Idea

[Title] Given n points on the plane, find a pair of points such that the distance between the point pairs is the smallest among all pairs of n points. In two dimensions, for two two-dimensional points A = (x1, y1), B = (x2, y2), the Euclidean distance between them is The problem is easily solved […]

Use poi to read the closest table data under a certain text in doc and docx

Share a method of using poi to read the closest table data under a certain text in doc and docx Introduce the following packages Since I use other functions of easyexcel, I quoted this package. This package contains the package for operating docx. <!– Alibaba Cloud easyexcel –> <dependency> <groupId>com.alibaba</groupId> <artifactId>easyexcel</artifactId> <version>3.1.3</version> </dependency> <!– Operation […]

[Algorithm] 3Sum Closest The closest sum of three numbers

Article directory 3Sum Closest the closest sum of three numbers Problem Description: analyze the code two points double pointer tag 3Sum Closest The sum of the closest three numbers Description of problem: You are given an integer array nums of length n and a target value target. Please select three integers from nums so that […]

PCL IterativeClosestPointNonLinear nonlinear L-M iteration method

1. Nonlinear iteration in pcl L-M source code in pcl * POSSIBILITY OF SUCH DAMAGE. * * $Id$ * */ #ifndef PCL_REGISTRATION_TRANSFORMATION_ESTIMATION_LM_HPP_ #define PCL_REGISTRATION_TRANSFORMATION_ESTIMATION_LM_HPP_ #include <pcl/registration/warp_point_rigid.h> #include <pcl/registration/warp_point_rigid_6d.h> #include <pcl/registration/distances.h> #include <unsupported/Eigen/NonLinearOptimization> // template <typename PointSource, typename PointTarget, typename MatScalar> pcl::registration::TransformationEstimationLM<PointSource, PointTarget, MatScalar>::TransformationEstimationLM () : tmp_src_() , tmp_tgt_() , tmp_idx_src_() , tmp_idx_tgt_() , warp_point_ (new […]

Strong training [Find the closest two prime numbers and binary insertion that form an even number]

Table of Contents 1. Find the closest two prime numbers that make up an even number 1.1 Topic 1.2 Ideas 1.2.1 Brute force solution 1.2.2 Center judgment 1.3 Code 1.3.1 Violent solution code 1.3.2 Center judgment code 2. Binary insertion 2.1 Topic 2.2 Ideas 2.3 Code 3. Multiple choice questions 1. Find the closest two […]

ICP Closest Point Iterative Point Cloud Matching Algorithm

Use the PCL library #include <iostream> #include <pcl/io/pcd_io.h> #include <pcl/point_types.h> #include <pcl/registration/icp.h> #include <ros/ros.h> int main(int argc, char **argv) {<!– –> ros::init(argc, argv, “iterative_closest_point”); pcl::PointCloud<pcl::PointXYZ>::Ptr cloud_in(new pcl::PointCloud<pcl::PointXYZ>); pcl::PointCloud<pcl::PointXYZ>::Ptr cloud_out(new pcl::PointCloud<pcl::PointXYZ>); // Fill in the point cloud data cloud_in->width = 500; cloud_in->height = 1; cloud_in->is_dense = false; cloud_in->points.resize(cloud_in->width * cloud_in->height); for (size_t i = 0; i […]