More Problems

• Write a function to determine if two strings can be rearranged to form a valid word using hashing.
• Implement a function to find the maximum frequency of any digit in a number using a hash map.
• Create a program to check if two arrays have the same frequency of elements using hashing.
• Write a function to find the total number of unique words in a paragraph using hashing.
• Given a string, write a program to count the total number of unique letters using hashing.
• Implement a function to find the first character that appears three times in a string using a hash map.
• Create a program to count the occurrences of a specific letter in a string using a hash map.
• Write a function to determine if a string is a valid email address using hashing.