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Height of Binary Tree After Subtree Removal Queries, Leetcode 2460. Minimum Number of Refueling Stops, Leetcode 873. We have to use the below formula to calculate the mid of the array -. Longest Square Streak in an Array, Leetcode 2503. Minimum Insertions to Balance a Parentheses String, Leetcode 1542. If you want a function to change what is in an, @PranavVA Youre passing a pointer by value. i should've given it more thought. Count Integers in Intervals, Leetcode 2277. Maximum Fruits Harvested After at Most K Steps, Leetcode 2107. How to remove all duplicates from an array of objects? 601), Moderation strike: Results of negotiations, Our Design Vision for Stack Overflow and the Stack Exchange network, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Call for volunteer reviewers for an updated search experience: OverflowAI Search, Discussions experiment launching on NLP Collective, efficiently find amount of integers in a sorted array. Query Kth Smallest Trimmed Number, Leetcode 2344. You can also use the Arrays.binarySearch() method with characters like this: The same principles apply in this case when the given search key is not found. Minimum Path Cost in a Hidden Grid, Leetcode 1814. The Number of Full Rounds You Have Played, Leetcode 1906. Assigning to a functions (non-reference) argument has no effect outside that function. Maximum Number of Accepted Invitations, Leetcode 1821. Shortest Way to Form String, Leetcode 1058. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Minimum Cost to Reach City With Discounts, Leetcode 2094. Maximum Price to Fill a Bag, Leetcode 2549. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix, Leetcode 1287. SamIam's solution is still better, as long as it's sorted. Sort Even and Odd Indices Independently, Leetcode 2165. Maximum Points in an Archery Competition, Leetcode 2213. Check if All the Integers in a Range Are Covered, Leetcode 1894. Validate Binary Tree Nodes, Leetcode 1367. Find Minimum Time to Finish All Jobs II, Leetcode 2327. Smallest String With Swaps, Leetcode 1203. The idea of binary search is to use the information that the array is sorted and reduce the time complexity to O (log N). Maximum Product of the Length of Two Palindromic Subsequences, Leetcode 2003. Prime Number of Set Bits in Binary Representation, Leetcode 768. Convert Sorted List to Binary Search Tree.md","contentType":"file"}, {"name":"11. Minimum Add to Make Parentheses Valid, Leetcode 926. Guess Number Higher or Lower, Leetcode 375. Binary Tree Level Order Traversal II, Leetcode 108. Minimum Time to Complete All Tasks, Leetcode 2591. Minimum Absolute Difference Queries, Leetcode 1909. Note that, the element a[i] can only be swapped with either a[i+1] or a[i-1]. let lo = 0, hi = nums.length-1; 2. mid K Radius Subarray Averages, Leetcode 2091. The Number of the Smallest Unoccupied Chair, Leetcode 1944. Numbers At Most N Given Digit Set, Leetcode 903. Instead of using the default starting and ending indices, you can define them yourself. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Check if Matrix Is X Matrix, Leetcode 2320. We are calling BinarySearchModified two times. Write an efficient algorithm to search for a target value in this array. If the pointer is valid you can modify the node that it points to, but you can never change, Leetcode 108. Dot Product of Two Sparse Vectors, Leetcode 1573. Binary Search Easy 10.4K 211 Companies Given an array of integers nums which is sorted in ascending order, and an integer target, write a function to search target in nums. Find the Student that Will Replace the Chalk, Leetcode 1897. Find All Numbers Disappeared in an Array, Leetcode 449. mid = (0 + 8)/2 = 4. Number of Ways to Paint N 3 Grid, Leetcode 1414. Check if Number Has Equal Digit Count and Digit Value, Leetcode 2284. Build a Matrix With Conditions, Leetcode 2393. Insert into a Binary Search Tree, Leetcode 702. Longest Line of Consecutive One in Matrix, Leetcode 564. Frequency of the Most Frequent Element, Leetcode 1839. Two Sum IV - Input is a BST, Leetcode 659. Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree, Leetcode 1493. Find First and Last Position of Element in Sorted Array, Leetcode 80. Design In-Memory File System, Leetcode 589. Binary Search is a searching algorithm for finding an element's position in a sorted array. For example, if you want to perform the search from index 2 to index 4, you can do so as follows: In this case, the Arrays.binarySearch() method takes the array you want to search as the first argument, the starting index as the second argument, the ending index as the third argument, and the key as the fourth argument. Find Median from Data Stream, Leetcode 297. Find All Anagrams in a String, Leetcode 440. Longest Substring with At Most Two Distinct Characters, Leetcode 160. Minimum Interval to Include Each Query, Leetcode 1852. Group the People Given the Group Size They Belong To, Leetcode 1283. Merge Triplets to Form Target Triplet, Leetcode 1900. Minimum Moves to Equal Array Elements, Leetcode 462. Leetcode 1744. You have the basic idea right, but I already suggested this a while ago in my answer. Maximum Ascending Subarray Sum, Leetcode 1801. Find All K Distant Indices in an Array, Leetcode 2201. Minimum Numbers of Function Calls to Make Target Array, Leetcode 1561. Longest Arithmetic Sequence, Leetcode 1028. Largest Local Values in a Matrix, Leetcode 2374. Minimum Number of Increments on Subarrays to Form a Target Array, Leetcode 1530. Example 1: Input: n = 7, k = 3 arr . Flip Columns For Maximum Number of Equal Rows, Leetcode 1073. Longest Well-Performing Interval, Leetcode 1128. Minimum Garden Perimeter to Collect Enough Apples, Leetcode 1955. Sort Items by Groups Respecting Dependencies, Leetcode 1207. Flip Binary Tree To Match Preorder Traversal, Leetcode 974. Distribute Candies to People, Leetcode 1104. Maximum Product of the Length of Two Palindromic Substrings, Leetcode 1962. Shortest Path Visiting All Nodes, Leetcode 849. How can i reproduce this linen print texture? Minimum Number of K Consecutive Bit Flips, Leetcode 999. Count Common Words With One Occurrence, Leetcode 2086. Percentage of Letter in String, Leetcode 2279. Since the array that will be passed into the method will be sorted, I'm assuming that I can take advantage of using a Binary Search since this will be O(log n). @Michael look at the edit. The output from this program will be: Remember, the method returns the index of the found item and not the item itself. Reachable Nodes In Subdivided Graph, Leetcode 883. Now the problem has become finding the feasible function and then mechanically applying the template. Maximum Subsequence Score, Leetcode 2543. Fastest way to determine if an integer's square root is an integer. Evaluate Reverse Polish Notation, Leetcode 153. Binary Search - Leetcode Solution - OffCampus Phodenge by Aman Add Edges to Make Degrees of All Nodes Even, Leetcode 2509. Minimum Remove to Make Valid Parentheses, Leetcode 1250. It will be easy to understand the working of Binary search with an example. Maximum Difference Between Node and Ancestor, Leetcode 1027. Remove One Element to Make the Array Strictly Increasing, Leetcode 1910. So in this case, the starting index is 0 and the ending index is 6. Minimum Fuel Cost to Report to the Capital, Leetcode 2478. Number of People That Can Be Seen in a Grid, Leetcode 2283. Maximum Total Beauty of the Gardens, Leetcode 2236. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit, Leetcode 1439. The k Strongest Values in an Array, Leetcode 1477. Delete Columns to Make Sorted III, Leetcode 961. Number of Distinct Roll Sequences, Leetcode 2319. Time Needed to Rearrange a Binary String, Leetcode 2382. Find Longest Awesome Substring, Leetcode 1545. Convert Sorted Array to Binary Search Tree.md","contentType":"file"}, {"name":"109. Monotonic Function - Binary Search / Sorted Array - AlgoMonster Smallest String Starting From Leaf, Leetcode 989. Minimum Number of Operations to Make Arrays Similar, Leetcode 2450. I saw some recursive solutions which returned a TreeNode pointer and wanted to try a different solution. Otherwise, the search is called unsuccessful. Maximum Number of Tasks You Can Assign, Leetcode 2073. It's trickier to find the feasible function in other problems. Longest Path With Different Adjacent Characters, Leetcode 2247. If target exists, then return its index. Minimum Time to Collect All Apples in a Tree, Leetcode 1444. Find the K Beauty of a Number, Leetcode 2270. Smallest Missing Non negative Integer After Operations, Leetcode 2599. Minimum Operations to Make All Array Elements Equal, Leetcode 2604. Largest Color Value in a Directed Graph, Leetcode 1858. Maximize the Confusion of an Exam, Leetcode 2025. Design a Food Rating System, Leetcode 2354. Destroy Sequential Targets, Leetcode 2455. Minimum Cost to Connect Sticks, Leetcode 1168. Convert Sorted List to Binary Search Tree.md","path":"leetcode/109. But when comparing between a character in the array and a given search key, the ASCII code of the corresponding character will be used. Count Array Pairs Divisible by K, Leetcode 2184. Minimum Operations to Make the Array K Increasing, Leetcode 2113. Check if Point Is Reachable, Leetcode 2545. Find Closest Number to Zero, Leetcode 2240. Maximum Number of Balls in a Box, Leetcode 1743. Connecting Cities With Minimum Cost, Leetcode 1143. You can make a tax-deductible donation here. Binary Search LeetCode Solution - TutorialCup We can use const_iterator and solve the problem with a non-void helper: Thanks for contributing an answer to Stack Overflow! So you can store the index in an integer like . Find the Longest Substring Containing Vowels in Even Counts, Leetcode 1372. Minimum Penalty for a Shop, Leetcode 2484. Greatest Sum Divisible by Three, Leetcode 1263. Longest Ideal Subsequence, Leetcode 2371. Serialize and Deserialize BST, Leetcode 451. Tiling a Rectangle with the Fewest Squares, Leetcode 1247. Most Profitable Path in a Tree, Leetcode 2468. Binary String With Substrings Representing 1 To N, Leetcode 1018. Once again according to the official docs on the Arrays.binarySearch() method: Not very clear right? Take K of Each Character From Left and Right, Leetcode 2517. Nearly sorted | Practice | GeeksforGeeks Find Players With Zero or One Losses, Leetcode 2226. Otherwise, return -1. Max Chunks To Make Sorted II, Leetcode 774. Check if Numbers Are Ascending in a Sentence, Leetcode 2044. Maximum Number of Achievable Transfer Requests, Leetcode 1604. How to search in a nearly sorted array - Educative Ceil The Floor - Coding Ninjas Range Sum Query - Immutable, Leetcode 304. Binary Search tree Array implementation C++, Converting binary search tree to linked list, Array implementation of Binary Search Tree, leetcode 108 Convert Sorted Array to Binary Search Tree. It is using Modified Binary Search. Maximum Average Subarray II, Leetcode 646. Find Distance in a Binary Tree, Leetcode 1742. Remove All Occurrences of a Substring, Leetcode 1911. Maximum Length of Subarray With Positive Product, Leetcode 1568. Remove Zero Sum Consecutive Nodes from Linked List, Leetcode 1177. Maximum Profit of Operating a Centennial Wheel, Leetcode 1601. Divide Array in Sets of K Consecutive Numbers, Leetcode 1297. When the list is sorted we can use the binary search technique to find items on the list. Java import java.util.Scanner; public class LinearSearchNearlySortedArray { private static int linearSearchNearlySorted (int [] arr, int target) { for (int i=0;i < arr.length; i++) { if (arr [i] == target) return i; } Distribute Money to Maximum Children, Leetcode 2592. Remove All Adjacent Duplicates In String, Leetcode 1053. Search in Rotated Sorted Array, Leetcode 34. The Number of Beautiful Subsets, Leetcode 2598. Convert Sorted List to Binary Search Tree, Leetcode 111. Number of Good Binary Strings, Leetcode 2534. Program: Write a program to implement Binary search in Java. Decompress Run-Length Encoded List, Leetcode 1315. Detonate the Maximum Bombs, Leetcode 2102. Left and Right Sum Differences, Leetcode 2575. Number of Longest Increasing Subsequence, Leetcode 674. rev2023.8.22.43591. N-ary Tree Level Order Traversal, Leetcode 430. Minimum Moves to Reach Target Score, Leetcode 2140. Remove Duplicates From an Unsorted Linked List, Leetcode 1838. Minimum Cost of Buying Candies With Discount, Leetcode 2145. Remove All Ones With Row and Column Flips II, Leetcode 2176. Maximum Sum Obtained of Any Permutation, Leetcode 1592. Intersection of Three Sorted Arrays, LeetCode 1218. Sum of Total Strength of Wizards, Leetcode 2282. Check If a String Contains All Binary Codes of Size K, Leetcode 1465. Number of Students Doing Homework at a Given Time, Leetcode 1453. Number of Valid Move Combinations On Chessboard, Leetcode 2057. Minimum Operations to Make Array Equal, Leetcode 1552. Valid Permutations for DI Sequence, Leetcode 914. Sort Linked List Already Sorted Using Absolute Values, Leetcode 2047. Range Sum Query 2D - Mutable, Leetcode 309. Minimize Maximum Pair Sum in Array, Leetcode 1878. Minimum Number of Operations to Reinitialize a Permutation, Leetcode 1807. You must write an algorithm with O (log n) runtime complexity. Assume we have an array [5, 6, 7, 8, 9, 10] and a search key 0 which is clearly not in the array. Find Positive Integer Solution for a Given Equation, Leetcode 1238. Reduction Operations to Make the Array Elements Equal, Leetcode 1888. Next Greater Numerically Balanced Number, Leetcode 2049. LeetCode Daily Challenge Problem: Binary Search Problem Statement Given an array of integers nums which is sorted in ascending order, and an integer target, write a function to search target in nums. Minimum Money Required Before Transactions, Leetcode 2414. Cut Off Trees for Golf Event, Leetcode 688. The Employee That Worked on the Longest Task, Leetcode 2433. Number of Smooth Descent Periods of a Stock, Leetcode 2111. Find Subsequence of Length K With the Largest Sum, Leetcode 2100. Bitwise AND of Numbers Range, Leetcode 203. Alternatevely, instead of counting the number of occurances, you can put their indices in a arraylist and put that in the map instead of the count. Search in a Binary Search Tree, Leetcode 701. arr [i] can only be swapped with either arr [i+1] or arr [i-1]. Find All People With Secret, Leetcode 2093. Construct Binary Search Tree from Preorder Traversal, Leetcode 1009. Maximum Count of Positive Integer and Negative Integer, Leetcode 2530. Minimum Number of Steps to Make Two Strings Anagram II, Leetcode 2187. Minimum Number of Swaps to Make the Binary String Alternating, Leetcode 1865. Find Customers With Positive Revenue this Year, Leetcode 1822. Find Mode in Binary Search Tree, Leetcode 510. Binary Search Tree to Greater Sum Tree, Leetcode 1039. Please mail your requirement at [emailprotected]. Removing Stars From a String, Leetcode 2391. A height-balanced binary tree is a binary tree in which the depth of the two subtrees of every node never differs by more than one. Longest Arithmetic Subsequence of Given Difference, Leetcode 1221. Partition Array into Disjoint Intervals, Leetcode 918. Least Number of Unique Integers after K Removals, Leetcode 1482. Convert Sorted List to Binary Search Tree.md","path":"leetcode/109. Finding occurances of 'x' is simply. If the key element is smaller than its predecessor, compare it to the elements before. Check If Word Is Valid After Substitutions, Leetcode 1005. Node With Highest Edge Score, Leetcode 2375. Arithmetic Slices II - Subsequence, Leetcode 448. The Time When the Network Becomes Idle, Leetcode 2040. Number of Ways Where Square of Number Is Equal to Product of Two Numbers, Leetcode 1578. Delivering Boxes from Storage to Ports, Leetcode 1691. Find All Groups of Farmland, Leetcode 1994. Circular Permutation in Binary Representation, Leetcode 1239. Best Time to Buy and Sell Stock with Transaction Fee, Leetcode 718. Display Table of Food Orders in a Restaurant, Leetcode 1419. Minimum Addition to Make Integer Beautiful, Leetcode 2458. Number of Arithmetic Triplets, Leetcode 2368. Minimum Cost to Hire K Workers, Leetcode 861. Searching an element in a sorted array | Practice | GeeksforGeeks Maximum Good People Based on Statements, Leetcode 2152. Sum of Nodes with Even-Valued Grandparent, Leetcode 1317. Rank Transform of an Array, Leetcode 1333. Fair Distribution of Cookies, Leetcode 2307. Number of Nodes With Value One, Leetcode 2446. Largest Combination With Bitwise AND Greater Than Zero, Leetcode 2276. Minimum Time to Eat All Grains, Leetcode 2605. It will be O(LogN). Minimum Index Sum of Two Lists, Leetcode 600. Largest Palindromic Number, Leetcode 2385. Sort Integers by The Power Value, Leetcode 1400. Longest Harmonious Subsequence, Leetcode 599. Optimize Water Distribution in a Village, Leetcode 1170. Find Good Days to Rob the Bank, Leetcode 2101. Find centralized, trusted content and collaborate around the technologies you use most. Maximum Students Taking Exam, Leetcode 1351. Maximum XOR of Two Numbers in an Array, Leetcode 423. Search in Rotated Sorted Array II Medium 7.6K 955 Companies There is an integer array nums sorted in non-decreasing order (not necessarily with distinct values). For example, FFFFTTTTT. Implement Stack using Queues, Leetcode 230. Check if There is a Valid Partition For The Array, Leetcode 2370. With that said it would be safe to assume that on a more "average" case it would be O(log n + k), where k is some constant number of occurrences which would be O(log n)? Shortest Common Supersequence, Leetcode 1093. Serialize and Deserialize N-ary Tree, Leetcode 429. Best Position for a Service Centre, Leetcode 1516. Maximum Number of Integers to Choose From a Range I, Leetcode 2555. Number of Spaces Cleaning Robot Cleaned, Leetcode 2062. Replace Elements in an Array, Leetcode 2299. The K Weakest Rows in a Matrix, Leetcode 1339. Number of Ways to Stay in the Same Place After Some Steps, Leetcode 1274. Convert Sorted Array to Binary Search Tree - Stack Overflow. Disconnect Path in a Binary Matrix by at Most One Flip, Leetcode 2557. Enjoy unlimited access on 5500+ Hand Picked Quality Video Courses. Cyclically Rotating a Grid, Leetcode 1915. Search in Rotated Sorted Array II - LeetCode 81. In this article, we will discuss the Binary Search Algorithm. Copyright Tutorials Point (India) Private Limited. Find Kth Largest XOR Coordinate Value, Leetcode 1740. Find Numbers with Even Number of Digits, Leetcode 1296. Count Sorted Vowel Strings, Leetcode 1642. Minimum Number of Flips to Make the Binary String Alternating, Leetcode 1889. Path In Zigzag Labelled Binary Tree, Leetcode 1106. Peak Index in a Mountain Array, Leetcode 857. Count Nodes With the Highest Score, Leetcode 2052. But if the i==0 then we need to search in only first half cuz the array is not rotated. Add and Search Word - Data structure design, Leetcode 215. However, this only works if the array has unique values. Find Original Array From Doubled Array, Leetcode 2008. Partition Array Into Three Parts With Equal Sum, Leetcode 1015. Path with Maximum Probability, Leetcode 1515. Remove Stones to Minimize the Total, Leetcode 1963. Different Ways to Add Parentheses, Leetcode 255. Maximum Number of Events That Can Be Attended, Leetcode 1354. In this procedure, the entire list is divided into two sub-lists. The first line states that the method will return the index of the search key if found in the array. Read N Characters Given Read4 II - Call multiple times, Leetcode 159. Enter an integer value to be searched in the array. Minimum Number of Lines to Cover Points, Leetcode 2155. -104 <= target <= 104 Accepted 2.2M Submissions 5.6M Acceptance Rate 39.8% Discussion (135) Similar Questions Search in Rotated Sorted Array II Example 1: Queens That Can Attack the King, Leetcode 1227. Maximum Subarray Sum After One Operation, Leetcode 1749. Would a group of creatures floating in Reverse Gravity have any chance at saving against a fireball? First Unique Character in a String, Leetcode 395. Number of Substrings With Only 1s, Leetcode 1514. Maximum Split of Positive Even Integers, Leetcode 2179. The Earliest and Latest Rounds Where Players Compete, Leetcode 1902. Partition to K Equal Sum Subsets, Leetcode 700. Preimage Size of Factorial Zeroes Function, Leetcode 795. Software developer with a knack for learning new things and writing about them, If you read this far, tweet to the author to show them you care. Find Subarrays With Equal Sum, Leetcode 2396. Construct Smallest Number From DI String, Leetcode 2378. Minimize Maximum Value in a Grid, Leetcode 2373. Divide Players Into Teams of Equal Skill, Leetcode 2495. Maximum Segment Sum After Removals, Leetcode 2383. That was pretty much it for this one. Number of Wonderful Substrings, Leetcode 1920. Reverse Substrings Between Each Pair of Parentheses, Leetcode 1191. Find Minimum in Rotated Sorted Array, Leetcode 154. Duration: 1 week to 2 week. Minimum ASCII Delete Sum for Two Strings, Leetcode 713. Why does a flat plate create less lift than an airfoil at the same AoA? Maximum Sum of Two Non-Overlapping Subarrays, Leetcode 1033. Count Nodes Equal to Sum of Descendants, Leetcode 1976. A monotonic function is a function that is either non-decreasing or non-increasing. Can Convert String in K Moves, Leetcode 1541. Cycle Length Queries in a Tree, Leetcode 2510. 912. (i.e., [0,0,1,2,2,5,6] might become [2,5,6,0,0,1,2]). Number of Ways of Cutting a Pizza, Leetcode 1448. Splitting a String Into Descending Consecutive Values, Leetcode 1850. Program: Write a program to implement Binary search in C++. Minimum Operations to Make a Subsequence, Leetcode 1714. Count Artifacts That Can Be Extracted, Leetcode 2202. Projection Area of 3D Shapes, Leetcode 884. This outputs "[]" for all cases. Search in Rotated Sorted Array II, Leetcode 82. Minimum White Tiles After Covering With Carpets, Leetcode 2210. Maximize Win From Two Segments, Leetcode 2556. Here, based on the search key, the insertion point can have different values. Find Triangular Sum of an Array, Leetcode 2222. 81. The Number of Weak Characters in the Game, Leetcode 1997. Count Elements With Strictly Smaller and Greater Elements, Leetcode 2149. Replace All Digits with Characters, Leetcode 1846. Time Taken to Cross the Door, Leetcode 2535. Categorize Box According to Criteria, Leetcode 2526. All rights reserved. Intersection of Two Arrays II, Leetcode 352. Best Time to Buy and Sell Stock, Leetcode 122. Replace Non Coprime Numbers in Array, Leetcode 2198. Minimum Deletions to Make Array Divisible, Leetcode 2345. Minimum Score by Changing Two Elements, Leetcode 2569. There are two methods to implement the binary search algorithm - Iterative method; Recursive method; The recursive method of binary search follows the divide and conquer approach. Painting a Grid With Three Different Colors, Leetcode 1932. Maximum Candies Allocated to K Children, Leetcode 2227. Maximum Number of Events That Can Be Attended II, Leetcode 1800. What am I missing here? Count Distinct Numbers on Board, Leetcode 2550. Count Number of Maximum Bitwise OR Subsets, Leetcode 2045. Find the Kth Largest Integer in the Array, Leetcode 1986. Binary Search - LeetCode 704. Count Days Spent Together, Leetcode 2410. However, this only works if the array has unique values. Convert Binary Search Tree to Sorted Doubly Linked List, Leetcode 428. Minimum Sum of Four Digit Number After Splitting Digits, Leetcode 2161. Maximum Number of Coins You Can Get, Leetcode 1562. N-ary Tree Postorder Traversal, Leetcode 592. Sum Of Special Evenly-Spaced Elements In Array, Leetcode 1716. Minimum Weighted Subgraph With the Required Paths, Leetcode 2204. Construct Binary Tree from Inorder and Postorder Traversal, Leetcode 107. Populating Next Right Pointers in Each Node, Leetcode 117. Palindrome Partitioning III, Leetcode 1281. Apply Bitwise Operations to Make Strings Equal, Leetcode 2548. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, your solution sounds good, if the array contained all x values you would have to look at all of them anyway, no matter what. Now, the element to search is found. Minimum Operations to Make the Array Increasing, Leetcode 1828. Maximum Product Difference Between Two Pairs, Leetcode 1914. if you initially know the duplicate value, yea, you find one and look left and right until you hit another value. Maximum Score Words Formed by Letters, Leetcode 1259. Maximum Number of People That Can Be Caught in Tag, Leetcode 1992. Maximum Sum BST in Binary Tree, Leetcode 1376. Minimum Cost to Make at Least One Valid Path in a Grid, Leetcode 1371. Shortest Path with Alternating Colors, Leetcode 1130. Count All Valid Pickup and Delivery Options, Leetcode 1361. Minimum Number of Days to Disconnect Island, Leetcode 1569. Fraction to Recurring Decimal, Leetcode 167. Output location of the key (if found), otherwise wrong location. The method returns the index of the element if found. If the item is found in the middle position, it returns the location, otherwise jumps to either left or right sub-list and do the same process again until finding the item or exceed the range. Design a Number Container System, Leetcode 2350. Given an array a[] that is sorted, but after sorting, some elements are moved to either of the adjacent positions, i.e., a[i] may be present at a[i+1] or a[i-1].