More Problems

• Implement a function to check if two strings can be rearranged to form a valid word using hashing.
• Create a program to find the maximum frequency of any digit in a number using a hash map.
• Write a function to count the occurrences of a specific character in a string using a hash map.
• Given two strings, implement a function to check if they are anagrams using hashing.
• Create a program to find the total number of unique words in a paragraph using hashing.
• Write a function to find the first unique character in a string using a hash map.
• Implement a function to find the longest substring that is a palindrome using hashing.
• Create a program to check if a string is a valid email address using hashing.