More Problems

• 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.
• Write a program to return the indices of the first two numbers in an array that add up to a target using a hash map.
• Create a function that finds the longest consecutive characters in a string using hashing.
• Given a list of integers, write a function to count the number of unique elements using a hash set.