emadshaaban92

tl;dr

1. Don't run as root.
2. For sessions, set httpOnly (and secure to true if running over SSL) when setting cookies.
3. Use the Helmet for secure headers: https://github.com/evilpacket/helmet
4. Enable csrf for preventing Cross-Site Request Forgery: http://expressjs.com/api.html#csrf
5. Don't use the deprecated bodyParser() and only use multipart explicitly. To avoid multiparts vulnerability to 'temp file' bloat, use the defer property and pipe() the multipart upload stream to the intended destination.

emadshaaban92

package main

import (
	"fmt"
	"math/big"
	"time"
)

func makeNCRS(ncrs chan *big.Int, maxn int64) {
	var n, r int64

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MAXN = 100
MAXNCR = 1000000

import time
before = time.time()

def nCrs(maxn):
    n = r = ncr = 1
    while n <= maxn :
        if n == r :

emadshaaban92

#! /usr/bin/env python3
from math import factorial
#from functools import lru_cache

MAXN = 100
MAXNCR = 1000000

import time
before = time.time()

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#! /usr/bin/env python
import heapq
from itertools import imap, ifilter
import time
before = time.time()

class Pair(object):
    def __init__(self, f1, f2):
        self.f1, self.f2 = f1, f2
        self.total = f1 + f2

emadshaaban92

function is_palindrome(int number){
    word = Int.to_string(number)
    word == String.reverse(word)
}

function pair_with(int elem, it){
    Iter.map(function(el){ (elem, el) }, it)
}

function pairs(seq){

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NUMBER = 600851475143
 
iter numbers = Iter.init(2, function(int elm){ elm + 1 }, function(int elm){ elm > 0 })
 
function iter remove_multiples(int a, iter seq){
    Iter.filter(function(int elm){ mod(elm, a) != 0 }, seq)
}
 
function primes_init(iter seq){
    match(seq.next()){

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INDEX = 10001

iter numbers = Iter.init(2, function(int elm){ elm + 1 }, function(int elm){ elm > 0 })

function iter remove_multiples(int a, iter seq){
    Iter.filter(function(int elm){ mod(elm, a) != 0 }, seq)
}

function primes_init(iter seq){
    match(seq.next()){

emadshaaban92

type fib = iter(int)
 
MAX = 4000000
 
function fib fibs_init(a,b) {
    { next : function () { some((a, fibs_init(b, a+b))) } }
}
 
fib fibs = fibs_init(1,2)
 

emadshaaban92

#! /usr/bin/env python3
from functools import lru_cache
from itertools import count, takewhile

numbers = count(1)

MAX = 4000000

@lru_cache(maxsize=None)
def fib(n) :