yeison’s gists

yeison / ConvertTree.java

Last active May 2, 2017 00:45

	import java.util.ArrayList;
	import java.util.LinkedList;
	import java.util.List;

	public class ConvertTree {

	public static void main(String[] args){
	Node root = new Node();
	List<List<Node>> lists = convert(root);
	}

yeison / SimpleInputProvider.java

Last active August 29, 2015 14:01

DBN 53% error

	package classifier.vasilev;

	import com.github.neuralnetworks.architecture.Matrix;
	import com.github.neuralnetworks.training.TrainingInputData;
	import com.github.neuralnetworks.training.TrainingInputProvider;

	/**
	* Simple input provider for testing purposes.
	* Training and target data are two dimensional float arrays
	*/

yeison / RadixSort.java

Last active January 27, 2019 20:53

Implementation of Radix Sort in Java.

	/*
	RadixSort.java : Sorts 32-bit integers with O(n*k) runtime performance.
	Where k is the max number of digits of the numbers being
	sorted.
	(i.e. k=10 digits for 32-bit integers.)

	Copyright (C) 2013 Yeison Rodriguez ( github.com/yeison )

	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License

yeison / gist:5596728

Last active December 17, 2015 10:39

4-11. Design an O(n) algorithm that, given a list of n elements, finds all the elements that appear more than n / 2 times in the list. Then, design an O(n) algorithm that, given a list of n elements, finds all the elements that appear more than n / 4 times.

	/**
	* @param in - input dataset containing elements we'd like to search through
	* @param k - denominator to indicate desired occurrence of elements (e.g. with n/2, k = 2)
	* @return We will return all elements whose frequency is greater than n/k.
	*/
	public static ArrayList<Integer> getFrequentElements(int[] in, int k){

	Map<Integer, Integer> freqMap = new HashMap<Integer, Integer>();
	ArrayList<Integer> out = new ArrayList<Integer>();

yeison / tf2_ros issue

Created March 26, 2013 11:50

Having trouble building tf2_ros on osx

	==> Processing catkin package: 'tf2_ros'
	==> Building with env: '/Users/Yeison/ros_catkin_ws/install_isolated/env.sh'
	Makefile exists, skipping explicit cmake invocation...
	==> make cmake_check_build_system in '/Users/Yeison/ros_catkin_ws/build_isolated/tf2_ros'
	==> make -j4 -l4 in '/Users/Yeison/ros_catkin_ws/build_isolated/tf2_ros'
	Linking CXX shared library /Users/Yeison/ros_catkin_ws/devel_isolated/tf2_ros/lib/libtf2_ros.dylib
	Undefined symbols for architecture x86_64:
	"ros::NodeHandle::advertiseService(ros::AdvertiseServiceOptions&)", referenced from:
	ros::ServiceServer ros::NodeHandle::advertiseService<tf2::Buffer, tf2_msgs::FrameGraphRequest_<std::allocator<void> >, tf2_msgs::FrameGraphResponse_<std::allocator<void> > >(std::string const&, bool (tf2::Buffer::)(tf2_msgs::FrameGraphRequest_<std::allocator<void> >&, tf2_msgs::FrameGraphResponse_<std::allocator<void> >&), tf2::Buffer) in buffer.cpp.o
	"ros::NodeHandle::advertise(ros::AdvertiseOptions&)", referenced from:

yeison / catkin package console_bridge

Last active December 15, 2015 10:19

catkin package console_bridge

	==> Processing catkin package: 'console_bridge'
	==> Building with env: '/Users/Yeison/ros_catkin_ws/install_isolated/env.sh'
	==> cmake /Users/Yeison/ros_catkin_ws/src/console_bridge -DCATKIN_DEVEL_PREFIX=/Users/Yeison/ros_catkin_ws/devel_isolated/console_bridge -DCMAKE_INSTALL_PREFIX=/Users/Yeison/ros_catkin_ws/install_isolated
	-- Boost version: 1.53.0
	-- Found the following Boost libraries:
	-- system
	-- thread
	-- Configuring done
	-- Generating done
	CMake Warning:

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