More Problems

• Write a function to determine if a string is a valid anagram using hashing.
• Implement a program to count the frequency of elements in an array of strings using a hash map.
• Create a function to find the minimum window substring that contains all characters of another string using hashing.
• Write a program to find the intersection of two arrays using a hash map.
• Given a string, implement a function to find the longest palindromic substring using hashing.
• Write a function to check if two strings are isomorphic using hashing.
• Create a program to find all elements that appear more than once in an array using a hash map.
• Implement a function to find the maximum product of three numbers in an array using hashing.