More Problems

• Given a string, write a program to find all unique characters using a hash set.
• Implement a function to find the first character that appears an odd number of times using hashing.
• Create a program to count the total number of consonants in a string using a hash map.
• Write a function to determine if two strings can be transformed into another string using hashing.
• Given an array of integers, write a program to check if it contains duplicate elements using a hash set.
• Implement a function to find the maximum frequency of any character in a string using a hash map.
• Create a program to find the longest substring that contains the same character using hashing.
• Write a function to check if two strings are anagrams using hashing.