More Problems

• Implement a function to find the maximum frequency of any character in a string using a hash map.
• Create a program to check if a string is a valid email address using hashing.
• Write a function to find the longest substring that is a palindrome using hashing.
• Given an array of integers, write a program to count the total number of even numbers using a hash set.
• Implement a function to find the first unique character in a string using a hash map.
• Create a program to check if a string can be rearranged to form a valid word using hashing.
• Write a function to find the frequency of each digit in a number using hashing.
• Given a string, write a program to check if it is a valid identifier using hashing.