Rodion Efremov coderodde

An enthusiast open source software developer with BSc in computer science.

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coderodde / Arrays.java

Last active Jun 17, 2019

Gist for net.coderodde.util.Arrays.sort(byte[])

View Arrays.java

      
        package net.coderodde.util;
      
        import java.util.Random;
      
        /**
      
         * This class contains static methods for sorting {@code byte} arrays.
      
         * 
      
         * @author Rodion "rodde" Efremov
      
         * @version 1.6 (Apr 24, 2019)
      
         */

coderodde / Long.java

Created May 14, 2019

View Long.java

      
        package net.coderodde.util;
      
        import java.util.Random;
      
        /**
      
         * This class contains a method for converting {@code long} values to strings.
      
         * 
      
         * @author Rodion "rodde" Efremov
      
         * @version 1.6 (May 13, 2019)
      
         */

coderodde / semaphore_impl.cpp

Created Jan 11, 2019

Windows port for a semaphore data type.

View semaphore_impl.cpp

      
        #include "semaphore_impl.h"
      
        #include <windows.h>
      
        static const char* CLASS = "net/coderodde/util/concurrent/WindowsSemaphoreImpl";
      
        static const char* FIELD = "semaphoreHandle";
      
        static HANDLE get_semaphore_handle(JNIEnv* env, jobject obj)
      
        {
      
        	jclass clazz = env->FindClass(CLASS);
      
        	jfieldID fid = env->GetFieldID(clazz, FIELD, "J");

coderodde / dt_tag_entry.cpp

Created Nov 22, 2018

Directory tagger.

View dt_tag_entry.cpp

      
        #include "dt_tag_entry.hpp"
      
        #include <string>
      
        #include <utility>
      
        namespace net {
      
        	namespace coderodde {
      
        		namespace dt2 {
      
        			TagEntry::TagEntry(std::string const& tag,
      
        				std::string const& directory)

coderodde / war.py

Last active Jun 9, 2018

Researching war scheduling algorithms.

View war.py

      
        import copy
      
        import random
      
        import time
      
        from heapq import heappush, heappop
      
        class Country:
      
            def __init__(self, name, resources):
      
                self.name = name

coderodde / main.c

Last active Jan 22, 2018

Parallel for loop construct in C - follow-up

View main.c

      
        #include "parallel_for.h"
      
        #include <stdio.h>
      
        #include <stdlib.h>
      
        #include <time.h>
      
        #if defined(__APPLE__) || defined(__linux__)
      
        #define POSIX
      
        #endif
      
        #if defined(POSIX)

coderodde / main.c

Last active Jan 21, 2018

Parallel for loop construct for C

View main.c

      
        #include "parallel_for.h"
      
        #include <stdio.h>
      
        #include <stdlib.h>
      
        #if defined(__APPLE__)
      
        #include <sys/time.h>
      
        #elif defined(__linux__)
      
        #include <sys/time.h>
      
        #elif defined(_WIN32)
      
        #include <windows.h>
      
        #else

coderodde / Benchmark.java

Created Dec 1, 2017

CR for boundary entries.

View Benchmark.java

      
        package net.coderodde.boundaries;
      
        import java.util.ArrayList;
      
        import java.util.Random;
      
        /**
      
         * This class implements a benchmark for the boundary algorithms.
      
         *
      
         * @author Rodion "rodde" Efremov
      
         * @version 1.6 (Dec 1, 2017)

coderodde / IntegerPatternMatching.java

Created Oct 31, 2017

IntegerPatternMatching.java

View IntegerPatternMatching.java

      
        package net.coderodde.util;
      
        import java.util.Random;
      
        public class IntegerPatternMatching {
      
            public static int getSubArrayIndex(int[] parentArr, int[] subArr) {
      
                boolean found = false;
      
                for (int i = 0; i <= parentArr.length - subArr.length; i++) {
      
                    if (parentArr[i] == subArr[0]) {

coderodde / TupleIterable.java

Created Oct 6, 2017

Tuple iterator in Java

View TupleIterable.java

      
        import java.util.ArrayList;
      
        import java.util.Arrays;
      
        import java.util.Iterator;
      
        import java.util.List;
      
        import java.util.NoSuchElementException;
      
        import java.util.Objects;
      
        public final class TupleIterable<T> implements Iterable<List<T>> {

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