ctci (cracking the coding interview) Cracking the coding interview Book Practice in Java & Python 📚 Array and Strings basics : ☕ | O(1) - HashTable vs HashMap ☕ | O(1) - HashTable function 🐍 | O(1) - HashTable function solutions : ☕ | O(n) - CheckPermutation function ☕ | O(n) - IsUniqueChars function ☕ | O(1) - ConstantIsUniqueChars function ☕ | O(n) - PalindromePermutation function ☕ | String Compression