More Problems

• Implement a function to count the occurrences of a specific character in a string using a hash map.
• Create a program to find the frequency of each word in a sentence using a hash map.
• Write a function to find the longest substring that contains at least one repeating character using hashing.
• Given an array, write a program to find the total number of even numbers using hashing.
• Implement a function to find the total number of unique elements in a string using hashing.
• Create a program that checks if two strings can be rearranged to form a valid word using hashing.
• Write a function to count the total number of vowels and consonants in a string using a hash map.
• Given a list of integers, write a program to determine the maximum frequency of any digit in a number using a hash map.