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@jeetsukumaran
jeetsukumaran / custom_iterator.cpp
Created February 18, 2010 02:33
Sample C++/STL custom iterator
// Sample custom iterator.
// By perfectly.insane (http://www.dreamincode.net/forums/index.php?showuser=76558)
// From: http://www.dreamincode.net/forums/index.php?showtopic=58468
#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>
#include <cassert>
@michiakig
michiakig / ants.clj
Created July 19, 2011 22:37
Clojure ant sim from Rich Hickey
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Ant sim ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Copyright (c) Rich Hickey. All rights reserved.
; The use and distribution terms for this software are covered by the
; Common Public License 1.0 (http://opensource.org/licenses/cpl.php)
; which can be found in the file CPL.TXT at the root of this distribution.
; By using this software in any fashion, you are agreeing to be bound by
; the terms of this license.
; You must not remove this notice, or any other, from this software.
;dimensions of square world
@vmihailenco
vmihailenco / proxy.go
Created November 20, 2011 15:22
Simple TCP proxy in Golang
package main
import (
"bytes"
"encoding/hex"
"flag"
"fmt"
"io"
"log"
"net"
@gre
gre / easing.js
Last active June 27, 2024 15:37
Simple Easing Functions in Javascript - see https://github.com/gre/bezier-easing
/*
* This work is free. You can redistribute it and/or modify it under the
* terms of the Do What The Fuck You Want To Public License, Version 2,
* as published by Sam Hocevar. See the COPYING file for more details.
*/
/*
* Easing Functions - inspired from http://gizma.com/easing/
* only considering the t value for the range [0, 1] => [0, 1]
*/
EasingFunctions = {
@codahale
codahale / pom.xml
Last active April 20, 2024 01:38
Take this and save it as pom.xml in your project directory.
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>my-project</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<!-- none yet -->
@jboner
jboner / latency.txt
Last active July 24, 2024 19:52
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@timothyklim
timothyklim / Application.scala
Created June 12, 2012 17:22
After I talked with co-author of play with topic subdomains, I was a little bit confused. My current framework doesn't support my thoughts and I was started write some code!
// app/controllers/Application.scala
trait SubdomainController extends Controller {
def WithSubdomain(f: => String => Request[AnyContent] => Result) = Action { implicit request =>
val splitDomain = request.domain.split("\\.")
if (splitDomain.length < 2) {
BadRequest("Domain not found!")
} else {
f(splitDomain.head)(request)
@preshing
preshing / sort1mb.cpp
Created October 25, 2012 11:28
Sort one million 8-digit numbers in 1MB RAM
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
typedef unsigned int u32;
typedef unsigned long long u64;
//-------------------------------------------------------------------------
// WorkArea
//-------------------------------------------------------------------------
@adharris
adharris / postgres_array.go
Created November 28, 2012 19:52
PostgreSQL demo of Array types using Golang
package main
import (
"database/sql"
"errors"
"fmt"
_ "github.com/bmizerany/pq"
"os"
"regexp"
"strings"
import sys
import collections
import gridfs
import io
import psycopg2
import pymongo
import random
import time
# For fairness use the same chunk size - 512k.