More Problems

• Write a program to find the first character that appears twice in a string using a hash map.
• Create a function that checks if two strings are made up of the same characters using hashing.
• Given a string, write a function to find the longest substring that is a palindrome using hashing.
• Write a program to count the total number of uppercase letters in a string using hashing.
• Create a function that checks if a string contains balanced parentheses using hashing.
• Implement a function to find the maximum frequency of any character in a string using a hash map.
• Write a program to find the total number of consonants in a string using hashing.
• Create a function that returns the first character that does not appear in another string using hashing.