More Problems

• Implement a function to find the longest subsequence in an array that can be formed by deleting some elements using hashing.
• Create a program to check if two strings can be made equal by swapping only two characters using hashing.
• Write a function to find the frequency of each element in an array using hashing and return the maximum frequency.
• Given a string, find all the substrings that can be formed using a set of characters with hashing.
• Create a function that determines the longest sequence of consecutive integers in an unsorted array using hashing.
• Write a program to find the longest palindrome that can be formed from a string using a hash map.
• Implement a function to check if a sequence of numbers can form an arithmetic progression using hashing.
• Create a program to find the shortest substring that contains all characters of another string using hashing.