SuryaPratapK

// C++ program to demonstrate auto-complete feature 
// using Trie data structure. 
#include<bits/stdc++.h> 
using namespace std; 

// Alphabet size (# of symbols) 
#define ALPHABET_SIZE (26) 

// Converts key current character into index 
// use only 'a' through 'z' and lower case 

bradtraversy

Node.js Deployment

Steps to deploy a Node.js app to DigitalOcean using PM2, NGINX as a reverse proxy and an SSL from LetsEncrypt

1. Sign up for Digital Ocean

If you use the referal link below, you get $10 free (1 or 2 months) https://m.do.co/c/5424d440c63a

2. Create a droplet and log in via ssh

I will be using the root user, but would suggest creating a new user

bradtraversy

MongoDB Cheat Sheet

Show All Databases

show dbs

Show Current Database

SoutrikBandyopadhyay

import matlab.engine
import matplotlib.pyplot as plt

class SimulinkPlant:
    def __init__(self,modelName = 'plant'):
        
        self.modelName = modelName #The name of the Simulink Model (To be placed in the same directory as the Python Code) 
        #Logging the variables
        self.yHist = 0 
        self.tHist = 0 

SoutrikBandyopadhyay

class PIController:
    def __init__(self):
        
        #Maintain a History of Variables
        self.yHist = []
        self.tHist = []
        self.uHist = []
        self.eSum = 0
        
    def initialize(self):

SoutrikBandyopadhyay

class SimulinkPlant:
    def __init__(self,modelName = 'plant'):
        
        self.modelName = modelName #The name of the Simulink Model (To be placed in the same directory as the Python Code) 
        #Logging the variables
        self.yHist = 0 
        self.tHist = 0 
        
    def setControlAction(self,u):
        #Helper Function to set value of control action

bradtraversy

MySQL Cheat Sheet

Help with SQL commands to interact with a MySQL database

MySQL Locations

• Mac /usr/local/mysql/bin
• Windows /Program Files/MySQL/MySQL version/bin
• Xampp /xampp/mysql/bin

Add mysql to your PATH

SoutrikBandyopadhyay

#include <stdio.h>
#include <math.h>
#include <malloc.h>

float pi = 3.141592654;

typedef struct _cmp{
  float real;
  float imag;
} Complex;

ar-pa

// In the name of Allah.
// We're nothing and you're everything.
// Ya Ali!
 
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
const int maxn = 1e2 + 14, lg = 15;

zlorb

Linux fun-o-matic

How to have some fun using the terminal.

1. Install cowsay [0] via : sudo apt-get install cowsay
2. Install fortune [1] via : sudo apt-get install fortune
3. Install figlet [3] via : sudo apt-get install figlet
4. Make sure you have Ruby installed via : ruby -v
5. Install the lolcat [2] via : gem gem install lolcat
6. (option) Add to .bash_profile and/or .bashrc