More Problems

• Write a program to find the first character that appears three times in a string using hashing.
• Create a function that checks if a string can be converted into a palindrome by removing at most one character using hashing.
• Given a string, write a function to find the longest substring of numbers using hashing.
• Write a program to count the number of unique characters in a string using a hash set.
• Create a function that checks if a string contains all uppercase letters using hashing.
• Implement a function to find the minimum character swaps required to make two strings equal using hashing.
• Write a program to find the maximum frequency of any digit in a number using a hash map.
• Create a function that checks if an array contains any even number using hashing.