Welcome to Day 27 of the DSA Coding Challenge:

Todays Goals (Strings):

Question 1:Longest Unique char Substring - Given a string s, find the length of the longest substring without repeating characters.

Question 2:Group Anagrams - Given an array of strings consisting of lower case English letters, group the anagrams together. You can return the answer in any order. An Anagram is a word or phrase formed by rearranging the letters of a different word or phrase, using all the original letters exactly once.

All the best!