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// https://www.lwjgl.org/guide copy-pasted to JetBrains IDEA to convert syntax from Java to Kotlin.
// LWJGL 3 version 3.2.3
import org.lwjgl.Version
import org.lwjgl.glfw.*
import org.lwjgl.glfw.Callbacks.*
import org.lwjgl.glfw.GLFW.*
import org.lwjgl.opengl.*
import org.lwjgl.opengl.GL11.*
import org.lwjgl.system.MemoryStack
import org.lwjgl.system.MemoryUtil

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/**
 * Print supported OpenGL API's to standard output up to OpenGL 4.6.
 *
 *  @author Marcin Kolenda
 */

import org.lwjgl.glfw.GLFW
import org.lwjgl.opengl.GL
import org.lwjgl.opengl.GLCapabilities
import org.lwjgl.system.MemoryUtil

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(defpackage :cl-gauss-elimination
  (:use :cl))

(in-package :cl-gauss-elimination)

(defun solve-upper (U)
  (let* ((d (array-dimension U 0))
	 (x (make-array (list d) :initial-element 0)))
    (loop for i from (1- d) downto 0
       do (setf (aref x i)

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package com.company;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.atomic.AtomicLong;

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module Main where
import System.Console.GetOpt
import System.Environment

data Flag = OptionA | OptionB

options :: [OptDescr Flag]
options =
  [ Option ['a']      []             (NoArg OptionA)       "Option A"
  , Option ['b']      []             (NoArg OptionB)       "Option B"

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class RandomCollection(UserList):

    def get_random(self):
        """Get randomly element from this collection"""
        max_it = len(self.data) - 1
        return self.data[randint(0, max_it)]


def random_boolean(probability=None):
    if probability:

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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent), ui(new Ui::MainWindow)
{
  // somewhere after ui->setupUi(this);
  ui->mainToolBar->addWidget(spacer);
  ui->mainToolBar->addWidget(new MyClickableBanner(this));
  // ...
}

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#include "main.h"
#include <QPainter>

#include <plasma/theme.h>



MyPlasmaApplet::MyPlasmaApplet(QObject *parent, const QVariantList &args) : Plasma::Applet(parent, args)
{   // rather don't add other stuff here. Use init() instead
    setBackgroundHints(DefaultBackground);

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#include <QMenu>
#include <QAction>

MyWidget::MyWidget(QWidget* parent) : QWidget(parent)
{
  setContextMenuPolicy(Qt::CustomContextMenu);
  connect(this, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(customContextMenuShow(QPoint)));
}

void MyWidget::customContextMenuShow(const QPoint& pos)