Count Distinct Elements in Every Window of Size K in Python
Aditya Bhuyan Program Explanation This program counts the number of distinct elements in each window of size k in a given list of integers. It uses a sliding window approach combined with…
Hashing
Find Duplicate Subtrees in a Binary Tree in Python
This program identifies duplicate subtrees in a binary tree using hashing. It utilizes a dictionary to keep track of serialized subtrees and their occurrences. Program Structure TreeNode Class: Defines the…
Union and Intersection of Two Arrays Using Hashing in Python
Program Overview This Python program demonstrates how to find the union and intersection of two arrays using hashing. Hashing allows for efficient membership testing, which is utilized to identify common…
Check for Zero Sum Subarray in Python
Python Program def has_zero_sum_subarray(arr): """ Checks if there exists a subarray with a sum of zero. Parameters: arr (list of int): The input array to be checked. Returns: bool: True…
Longest Consecutive Sequence in an Array in Python
Python Program def longest_consecutive(nums): """ Find the length of the longest consecutive elements sequence in an array. Args: nums (List): A list of integers. Returns: int: The length of the…
Group Anagrams in Python
Program def group_anagrams(strs): """ Groups anagrams from a list of strings. Parameters: strs (list): A list of strings to be grouped. Returns: list: A list of lists, where each sublist…
Find a Subarray with a Given Sum using Hashing in Python
This program demonstrates how to find a contiguous subarray within a one-dimensional array of numbers that sums to a specified target value. We use a hashing technique for efficient lookup.…
Two Sum Problem Solution in Python
The Two Sum problem is a classic algorithmic challenge where the goal is to find two numbers in an array that add up to a specific target sum. This implementation…
Counting Frequencies of Elements in an Array Using Hashing in Python
This Python program counts the frequencies of elements in an array using a hash table (dictionary). Hashing allows us to efficiently track the occurrences of each element in the array.…
Basic Hash Table Implementation in Python
Overview A hash table is a data structure that maps keys to values for efficient data retrieval. It uses a hash function to compute an index into an array of…
