More Problems

• Given a string, write a program to count the occurrences of each character using a hash map.
• Implement a function to find the longest substring with exactly two distinct characters using hashing.
• Create a program to find the first unique character in a string using a hash map.
• Write a function to determine if two strings can be made identical by swapping characters using hashing.
• Given a list of words, write a program to find the maximum frequency of any character in a string using hashing.
• Implement a function to count the total number of consonants in a string using hashing.
• Create a program that checks if a string is a valid identifier using hashing.
• Write a function to find the longest substring that contains the same character using hashing.