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Puzzle 9 | (Find the fastest 3 horses)

Last Updated: 25 May 2023

There are 25 horses among which you need to find out the fastest 3 horses. You can conduct a race among at most 5 to find out their relative speed. At no point, you can fi...read more

Introduction and Array Implementation of Queue

Last Updated: 25 May 2023

QuickSort - Data Structure and Algorithm Tutorials

Last Updated: 09 September 2023

QuickSort is a sorting algorithm based on the Divide and Conquer algorithm that picks an element as a pivot and partitions the given array around the picked pivot by placi...read more

Stock Buy Sell to Maximize Profit

Last Updated: 13 July 2023

The cost of a stock on each day is given in an array. Find the maximum profit that you can make by buying and selling on those days. If the given array of prices is sorted ...read more

Merge Sort - Data Structure and Algorithms Tutorials

Last Updated: 06 July 2023

Merge sort is defined as a sorting algorithm that works by dividing an array into smaller subarrays, sorting each subarray, and then merging the sorted subarrays back toge...read more

Check whether two Strings are anagram of each other

Last Updated: 03 October 2023

Given two strings. The task is to check whether the given strings are anagrams of each other or not.An anagram of a string is another string that contains the same charact ...read more

Reverse words in a given string

Last Updated: 13 September 2023

Given a string, the task is to reverse the order of the words in the given string.Examples:Input: s = "geeks quiz practice code"Output: s = "code practice quiz geeks"Input...read more

How to determine if a binary tree is height-balanced?

Last Updated: 19 June 2023

A height balanced binary tree is a binary tree in which the height of the left subtree and right subtree of any node does not differ by more than 1 and both the left and r...read more

Last Updated: 10 July 2023

The problem is opposite of this post. We are given a stack data structure with push and pop operations, the task is to implement a queue using instances of stack data stru...read more

Write a function to get the intersection point of two Linked Lists

Last Updated: 10 April 2023

There are two singly linked lists in a system. By some programming error, the end node of one of the linked lists got linked to the second list, forming an inverted Y-shap...read more

Find first non-repeating character of given String

Last Updated: 22 May 2023

Given a string S consisting of lowercase Latin Letters, the task is to find the first non-repeating character in S.Examples:Input: "geeksforgeeks"Output: fExplanation: As ...read more

Last Updated: 10 February 2023

Ugly numbers are numbers whose only prime factors are 2, 3 or 5. The sequence 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, ... shows the first 11 ugly numbers. By convention, 1 is ...read more

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