Tyler Kurtz tykurtz

GROKKING NOTES

I liked the way Grokking the coding interview organized problems into learnable patterns. However, the course is expensive and the majority of the time the problems are copy-pasted from leetcode. As the explanations on leetcode are usually just as good, the course really boils down to being a glorified curated list of leetcode problems.

So below I made a list of leetcode problems that are as close to grokking problems as possible.

Pattern: Sliding Window

Install spacemacs

sudo apt install -y emacs git
git clone -b develop https://github.com/syl20bnr/spacemacs ~/.emacs.d
wget -O ~/.spacemacs https://gist.githubusercontent.com/tykurtz/41c6d7b0930b9f8b107265ab895114a4/raw/e0e5f4bba3692b9746d27c377e5eddd81a7cd1e2/.spacemacs
emacs --batch -l ~/.emacs.d/init.el --eval="(configuration-layer/update-packages t)"  # Layer initialization before launch

Install ccls (code completion, navigation, etc.)

	#!/bin/bash

	mkdir ~/catkin_ws
	cd ~/catkin_ws
	catkin init
	mkdir src

	catkin config --profile release -x _release --extend /opt/ros/melodic --cmake-args -DCMAKE_BUILD_TYPE=Release
	catkin config --profile debug -x _debug --extend /opt/ros/melodic --cmake-args -DCMAKE_BUILD_TYPE=Debug -DCMAKE_EXPORT_COMPILE_COMMANDS=1
	catkin profile set debug

	;; -- mode: emacs-lisp; lexical-binding: t --
	;; This file is loaded by Spacemacs at startup.
	;; It must be stored in your home directory.

	(defun dotspacemacs/layers ()
	"Layer configuration:
	This function should only modify configuration layer settings."
	(setq-default
	;; Base distribution to use. This is a layer contained in the directory
	;; `+distribution'. For now available distributions are `spacemacs-base'

	#!/bin/bash

	for file in $(find . -name "compile_commands.json");
	do
	rc -J $file
	done

	#!/bin/bash
	cat .///compile_commands.json > compile_commands.json && sed -i -e ':a;N;$!ba;s/\n\]\[\n/,\n/g' compile_commands.json