More Problems

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