  {
   "cells": [
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "## Problem: Implement an algorithm to determine if a string has all unique characters\n",
      "\n",
 
</s> remove     "#* get and set on an empty hash\n",
    "#* get and set on a non empty hash\n",
    "#* get and set on a hash index with collision\n",
 </s> add 
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<small><i>This notebook was prepared by [Donne Martin](http://donnemartin.com). Source and license info is on [GitHub](https://bit.ly/code-notes).</i></small>"
   ]
  },
  {
   "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<small><i>This notebook was prepared by [Donne Martin](http://donnemartin.com). Source and license info is on [GitHub](https://bit.ly/code-notes).</i></small>"
   ]
  },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "## Problem: Implement an algorithm to determine if a string has all unique characters\n",
      "\n",
keep add keep keep keep keep keep keep
 Added author and GitHub original repo link to notebooks. 
arrays-strings/unique_chars.ipynb