More Problems

• 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.
• Given two strings, write a program to determine if they are anagrams using a hash table.
• Create a function to check if a string can be transformed into a valid number using hashing.
• Write a function to find the maximum frequency of any element in an array using a hash map.
• Implement a function to count the occurrences of a specific word in a sentence using a hash map.
• Create a program to find the longest substring that is an anagram of another substring using hashing.
• Write a function to check if a string is a valid email address using hashing.