More Problems

• Implement a function to find the first unique character in a string using a hash map.
• Create a program to find the maximum product of two distinct elements in an array using hashing.
• Write a function to determine if a list contains any duplicates using a hash set.
• Given a string, write a program to find the longest substring that is an anagram of another substring using hashing.
• Implement a function to check if a string is a valid email address using hashing.
• Create a program to find the total number of unique words in a paragraph using hashing.
• Write a function to find the frequency of elements in a list using a hash map.
• Given an array of integers, write a program to count the total number of odd numbers using a hash set.