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sillykelvin / XIRR.js
Created Oct 10, 2019 — forked from ghalimi/XIRR.js
XIRR Function
View XIRR.js
// Copyright (c) 2012 Sutoiku, Inc. (MIT License)
// Some algorithms have been ported from Apache OpenOffice:
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
sillykelvin /
Created Oct 9, 2017
A tmux script to restore work environment quickly after reboot
tmux new-session -d -s dev -n fkgfw 'sslocal -v -c own.conf'
tmux new-window -n src -c '/data/project/src'
tmux new-window -n dist -c '/data/project/dist'
tmux new-window -n build -c '/data/project/src/build'
tmux new-window -n tmp -c '/home/kelvin/tmp'
tmux new-window -n vm1 'ssh ubuntu@'
tmux new-window -n vm2 'ssh ubuntu@'
sillykelvin / generic_dispatcher.cpp
Last active May 11, 2017
A callback dispatcher with generic types
View generic_dispatcher.cpp
#include <memory>
#include <iostream>
#include <unordered_map>
// this is useful when dealing with google protobuf messages, what
// you get in your message callback is a google::protobuf::Message
// type, however, what you need is a concrete type, something like
// LoginRequest/LoginResponse, so you have to do the following:
// const LoginRequest *req = static_cast<const LoginRequest*>(msg);
View heap_sort.cpp
#include <algorithm>
#include <iostream>
using namespace std;
#define ARR_LEN(arr) (sizeof(arr) / sizeof(arr[0]))
struct element {
int id;
int score;
View tmux_cheatsheet.markdown

tmux cheatsheet

As configured in my dotfiles.

start new:


start new with session name:

# Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford (
# The author disclaims copyright to this source code.
import sys
import struct
import socket
import time
import select
View delegate.hpp
#include <functional>
#include <vector>
// general case
template<typename R, typename... Args>
class delegate
sillykelvin / sohu_crawler.js
Last active Aug 9, 2016
A node.js script for sohu video downloading
View sohu_crawler.js
#!/usr/bin/env node
var fs = require('fs');
var http = require('http');
var request = require('request');
var urlListFile = 'url.list';
if (!fs.existsSync(urlListFile)) {
sillykelvin / main.cpp
Last active Dec 29, 2015
Solve Monty Hall problem (AKA Three Door problem)
View main.cpp
#include <iostream>
#include <random>
typedef std::mt19937 EngineType;
typedef std::uniform_int_distribution<std::mt19937::result_type> GeneratorType;
bool GetIt(EngineType& engine, const GeneratorType& generator3, bool change) {
int correct_door = generator3(engine);
int first_choice = generator3(engine);
sillykelvin / operator_overloading.cpp
Created Nov 19, 2013
The example of member access operator -> overloading.
View operator_overloading.cpp
#include <iostream>
struct Origin {
int a;
struct Wrapper {
Origin *orig;
Origin *operator->() const {
return orig;
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