More Problems

• Given a list of integers, write a program to determine the maximum frequency of any digit in a number using a hash map.
• Implement a function to find the longest palindromic substring in a string using hashing.
• Create a program to count the occurrences of each letter in a string using a hash map.
• Write a function to find the first unique integer in an array using a hash map.
• Given a string, write a program to count the total number of unique letters using hashing.
• Implement a function to check if two arrays contain the same elements using hashing.
• Create a program to find the maximum product of two numbers in an array using hashing.
• Write a function to determine if a list contains any duplicates using a hash set.