More Problems

• Create a function to count the total number of vowels in a string using a hash map.
• Write a function to find the maximum frequency of any digit in a number using a hash map.
• Given a string, implement a function to check if it can be transformed into a valid identifier using hashing.
• Create a program to find the longest substring that is a palindrome using hashing.
• Write a function to check if two strings can be rearranged to form a valid word using hashing.
• Given two strings, implement a function to check if they can be transformed into a valid word using hashing.
• Create a program to find the frequency of each character in a string using a hash map.
• Write a function to find the total number of unique characters in a string using hashing.