More Problems

• Write a program to find the maximum length of a contiguous subarray with a sum of 0 using a hash map.
• Given two arrays, determine if there is a one-to-one mapping between their elements using hashing.
• 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.