More Problems

• Write a function to count the number of distinct pairs that sum to a target value using a hash map.
• Implement a function to find the longest substring of unique characters in a string using hashing.
• Create a program to check if a string is a valid palindrome using hashing.
• Write a function to find the number of unique words in a paragraph using hashing.
• Given a list of integers, write a program to determine if there exists a majority element using hashing.
• Implement a function to find the total number of vowels and consonants in a string using hashing.
• Create a program to check if two strings can be made identical by rearranging characters using hashing.
• Write a function to count the number of unique elements in a 2D array using a hash set.