More Problems

• 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 maximum frequency of any digit in a number using a hash map.
• Create a program to find the frequency of each letter in a string using a hash map.
• Write a function to determine if two strings can be transformed into another string using hashing.
• Given two strings, write a program to find the longest common substring using a hash table.
• Implement a function to find the longest substring with exactly k distinct characters using hashing.
• Create a program to count the occurrences of each character in a string using a hash map.
• Write a function to find the total number of unique characters in a string using a hash set.