More Problems

• Write a function to count the occurrences of each letter in the English alphabet in a string using a hash map.
• Implement a function to find the first character that occurs three times in a string using a hash map.
• Create a program to find the maximum product of two numbers in an array using hashing.
• Write a function to check if two arrays contain the same elements using hashing.
• Given a string, implement a function to find the longest substring with all unique characters using hashing.
• Create a program to find the frequency of elements in a list using a hash map.
• Write a function to find the first non-repeating character in a string using hashing.
• Implement a function to determine if two strings are isomorphic using hashing.