More Problems

• Create a program to check if a string is a valid identifier using hashing.
• Write a function to determine if two strings can be transformed into another string using hashing.
• Implement a function to find the maximum frequency of any digit in a number using a hash map.
• 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 a string, implement a function to count the occurrences of each character using a hash map.
• Create a program to find the maximum product of any two distinct elements in an array using hashing.
• Write a function to find the first unique character in a string using a hash map.