Wang-Kai

通览了 casbin 的文档，结合先前对 AWS IAM 的理解，以及对 ladon SDK 的使用，总结对比一下 Ladon & Casbin 两个授权库。

1. 项目定位

先对比两个项目的简介：

ladon

A SDK for access control policies: authorization for the microservice and IoT age. Inspired by AWS IAM policies. Written for Go.

fditraglia

# ------------------------------------------------------------------------------
# Here's a simple but slightly confusing task in R: collapsing a 3d array into a
# matrix. Specifically, we want to convert a 3d array of this form:
# ------------------------------------------------------------------------------
# , , 1
#
#      [,1]    [,2]    [,3]
# [1,] "1.1.1" "1.2.1" "1.3.1"
# [2,] "2.1.1" "2.2.1" "2.3.1"
#

cangoal

public class ReservationManager {
	List<Reservation> reservations;
	List<Table> tables;
	Set<Customer> customers;
	private static ReservationManager instance;
	
	private ReservationManager(){
		customers = new HashSet<>();
		init();

sing1ee

###回文分割分析

####原题 对一个字符串按照回文进行分割，例如aba|b|bbabb|a|b|aba就是字符串ababbbabbababa的一个回文分割，每一个字串都是一个回文。请找到可以分割的最少的字串数。例如：

1. ababbbabbababa最少4个字符串，分割三次：a|babbbab|b|ababa
2. 如果字符串整体是回文，则需要0次分割，最少1个字符串

####分析 这个题目很多做过leetcode的同学都见过，所以很多同学直接回复了DP。不过还是建议大家动手写一写。熟能生巧的。那么该如何分析这个题目呢？

fditraglia

library(Quandl)
p <- 100 * Quandl('FRED/GDPDEF', collapse = 'quarterly', start_date = '1960-01-01', end_date = '2012-01-01', type = 'ts', transformation = 'rdiff')

#Michigan Inflation Expectations aren't in Quandl yet
library(quantmod)
getSymbols("MICH",src="FRED")
#Median expected price change next 12 months, Survey of Consumers.

#Convert to ts object
MICH.start <- as.numeric(format.Date(start(MICH), '%Y'))

DiegoSalazar

// Takes a credit card string value and returns true on valid number
function valid_credit_card(value) {
  // Accept only digits, dashes or spaces
	if (/[^0-9-\s]+/.test(value)) return false;

	// The Luhn Algorithm. It's so pretty.
	let nCheck = 0, bEven = false;
	value = value.replace(/\D/g, "");

	for (var n = value.length - 1; n >= 0; n--) {

tonious

/* Read this comment first: https://gist.github.com/tonious/1377667#gistcomment-2277101
 * 2017-12-05
 * 
 *  -- T.
 */

#define _XOPEN_SOURCE 500 /* Enable certain library functions (strdup) on linux.  See feature_test_macros(7) */

#include <stdlib.h>
#include <stdio.h>

kennethreitz

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import urllib2

gh_url = 'https://api.github.com'

req = urllib2.Request(gh_url)

password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm()