More Problems

• Create a function that returns the first character that does not appear in another string using hashing.
• Given a list of words, write a program to find all anagrams of a given word using hashing.
• Write a function to find the total number of digits in a string using hashing.
• Create a program that checks if a string can be formed from the characters of another string using hashing.
• Implement a function to count the frequency of each digit in a number using hashing.
• Write a program to find the maximum length of a substring that contains only unique characters using hashing.
• Create a function that checks if a string is a valid identifier using hashing.
• Given a string, write a function to find the longest substring that is an anagram of another substring using hashing.