More Problems

• Write a function to count the number of uppercase letters in a string using hashing.
• Create a program that finds the common elements between two arrays using a hash map.
• Implement a function to check if a string is a valid URL using hashing.
• Write a program to find the maximum frequency of any word in a text using hashing.
• Create a function that checks if a string contains valid parentheses using a hash map.
• Given a string, write a function to count the occurrences of each vowel using a hash map.
• Write a program to determine if two strings can be formed from the same characters using hashing.
• Create a function that returns the character with the minimum frequency in a string using a hash table.