prakhar1989

1. General Background and Overview

• Probabilistic Data Structures for Web Analytics and Data Mining : A great overview of the space of probabilistic data structures and how they are used in approximation algorithm implementation.
• Models and Issues in Data Stream Systems
• Philippe Flajolet’s contribution to streaming algorithms : A presentation by Jérémie Lumbroso that visits some of the hostorical perspectives and how it all began with Flajolet
• Approximate Frequency Counts over Data Streams by Gurmeet Singh Manku & Rajeev Motwani : One of the early papers on the subject.
• [Methods for Finding Frequent Items in Data Streams](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.187.9800&rep

prakhar1989

Configurations

Service	Config Folder	Config File
Nginx	/etc/nginx/	/etc/nginx/nginx.conf
PHP FPM	/etc/php-fpm.d/	/etc/php.fpm.conf
PHP (extn)	/etc/php.d/	/etc/php.ini

---

PHP FPM Configuration

prakhar1989

import random
if __name__ == "__main__":
    # this decides whether the user wants to continue
    choice = True

    # the main game loop
    while choice:
        print "Random number: " + str(random.random() * 100)
        print "Do you want to continue? Y/N?: ", 
        user_choice = raw_input()

prakhar1989

 // generates a pair of colors separated by alpha controlled by a level
    private Pair<Integer, Integer> getRandomColor(int level) {
        int red = (int)(Math.random() * 255);
        int green = (int)(Math.random() * 255);
        int blue = (int)(Math.random() * 255);

        // factor in level
        int alpha1 = 200 + (int)(Math.random() * 55);
        int delta = (10 - level) * 5;
        int alpha2 = alpha1 > 227 ? alpha1 - delta : alpha1 + delta;

prakhar1989

package main

import (
	"fmt"
	"encoding/hex"
	"encoding/base64"	
)

func main() {
	s := "1c0111001f010100061a024b53535009181c"

prakhar1989

package main

import "fmt"

func main() {
	//const sample = "\xbd\xb2\x3d\xbc\x20\xe2\x8c\x98"
	//const sample = "Hello"
	
	// sample as a slice of bytes
	sample := []byte{'H', 'e', 'l', 'l', 'o'}

prakhar1989

// Karma configuration
// Generated on Mon Jul 07 2014 02:15:03 GMT+0300 (AST)

module.exports = function(config) {
  config.set({

    // base path that will be used to resolve all patterns (eg. files, exclude)
    basePath: '../',

prakhar1989

def reverse(seq):
	""" retruns the reverse of a seqence """
	return seq[::-1]

prakhar1989

(*>* Problem 5 *>*)

(* few_divisors n m should return true if n has fewer than m divisors, 
 * (including 1 and n) and false otherwise: *)
few_divisors 17 3;;
- : bool = true
# few_divisors 4 3;;
- : bool = false
# few_divisors 4 4;;
- : bool = true

prakhar1989

let max_length header rows = 
  let lengths list = List.map ~f:String.length list in
  List.fold rows
    ~init: (lengths header)
    ~f: (fun acc row ->
      List.map2_exn ~f:Int.max acc (lengths row))

let make_separator widths = 
  let pieces = List.map widths 
    ~f:(fun w -> String.make (w + 2) '-') (* padding of 2 chars *)