More Problems

• Create a program to find the longest substring that contains exactly k distinct characters using hashing.
• Write a function to find the first character that occurs twice in a string using a hash map.
• Given a string, write a program to find the first non-repeating character in a string using a hash map.
• Implement a function to check if two strings can be rearranged to form a palindrome using hashing.
• Create a program to find the total number of unique elements in a string using hashing.
• Write a function to find the maximum frequency of any character in a list of strings using hashing.
• Given a list of integers, write a program to count the total number of odd numbers using hashing.
• Implement a function to find the longest substring with exactly one repeating character using hashing.