More Problems

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