More Problems

• Create a program to check if two strings are isomorphic using hashing.
• Write a function to find the longest substring that contains only digits using hashing.
• Given a string, write a program to count the total number of unique letters using hashing.
• Implement a function to find the maximum frequency of any character in a string using a hash map.
• Create a program to check if two arrays contain the same elements using hashing.
• Write a function to find the first character that appears three times in a string using a hash map.
• Given a string, write a program to check if it can be transformed into a valid number using hashing.
• Implement a function to find the longest consecutive sequence of numbers in an array using hashing.