More Problems

• 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.
• Write a program to group anagrams from a list of strings using a hash table.
• Create a function to find the number of ways to form a word from a list of letters using a hash map.
• Implement a program to check if two strings are rotations of each other using hashing.