check if array is sorted leetcodecheck if array is sorted leetcode

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Minimum Number of Operations to Convert Time, 2225. Minimum Number of Operations to Move All Balls to Each Box, 1770. Solutions (3K) Submissions 912. Optimize Water Distribution in a Village, 1170. The idea is based on the fact that if we make sure that all even positioned (at index 0, 2, 4, ..) elements are greater than their adjacent odd elements, we dont need to worry about oddly positioned elements. Execute Cancellable Function With Delay, 2721. Find the Start and End Number of Continuous Ranges, 1287. Friend Requests II: Who Has the Most Friends, 615. Longest Substring Without Repeating Characters 4. Number of Steps to Reduce a Number to Zero, 1343. The Earliest and Latest Rounds Where Players Compete, 1904. Check if All Characters Have Equal Number of Occurrences, 1942. Check If String Is a Prefix of Array, 1962. Count Subarrays With Score Less Than K, 2307. Minimize the Maximum Difference of Pairs, 2617. While traversing the array swap arr [i] with arr [i+1]. Count Different Palindromic Subsequences, 744. Binary String With Substrings Representing 1 To N, 1026. large element small element-large element -small element and so on .it can be small element-larger element small element-large element -small element too. Minimum Time to Collect All Apples in a Tree, 1449. If the count of such occurrences is more than 2, then we cannot sort the array with one swap. Find a Value of a Mysterious Function Closest to Target, 1523. GFG Weekly Coding Contest. For example, base[1] = [1, 1] andbase[3] = [1, 2, 3, 3]. Employees Earning More Than Their Managers, 211. Number of Times Binary String Is Prefix-Aligned, 1376. Delivering Boxes from Storage to Ports, 1689. Sum of Absolute Differences in a Sorted Array, 1687. Maximum Running Time of N Computers, 2142. Minimum Deletions to Make Array Beautiful, 2218. Minimum Number of Vertices to Reach All Nodes, 1558. (2) If The Array is Sorted and Rotated K Times, The Value of Flag Will Strictly Be 1 By The End Of The Array Traversal and We Must Only Return True Iff Value of Flag is 1 and The First Element Of The Array Is Either Greater Than or Equal To The Last Element Of The Array. Reduction Operations to Make the Array Elements Equal, 1888. Max Sum of Rectangle No Larger Than K, 378. Count Equal and Divisible Pairs in an Array, 2177. Minimize Rounding Error to Meet Target, 1059. Get the Second Most Recent Activity, 1371. Most Frequent Number Following Key In an Array, 2192. GFG Weekly Coding Contest. Minimum Number of Taps to Open to Water a Garden, 1327. Remove All Adjacent Duplicates In String, 1050. Merge Overlapping Events in the Same Hall, 2495. Asking for help, clarification, or responding to other answers. The Most Frequently Ordered Products for Each Customer, 1597. Count Substrings Without Repeating Character, 2744. If there are exactly 2 mismatches, we can swap the terms that are not in the position to get the sorted array. @Moshiour Thanks a lot for pointing that out. Print Immutable Linked List in Reverse, 1269. C++ Java C Array Sorting Math Sort Two Pointers Iterator Counting Binary Search Binary Tree Recursion Brainteaser Interactive. How to check if elements in an array are sorted according to number of occurences? Missing Number In Arithmetic Progression, 1233. Number of Restricted Paths From First to Last Node, 1787. Kids With the Greatest Number of Candies, 1432. Number of Sets of K Non-Overlapping Line Segments, 1623. Construct Smallest Number From DI String, 2378. Final Value of Variable After Performing Operations, 2014. Maximum Score from Performing Multiplication Operations, 1771. Minimum Skips to Arrive at Meeting On Time, 1886. Find XOR Sum of All Pairs Bitwise AND, 1836. Removing Minimum and Maximum From Array, 2093. Delete the Middle Node of a Linked List, 2096. Minimum Amount of Time to Fill Cups, 2340. /problems/find-score-of-an-array-after-marking-all-elements/description/ Find the Divisibility Array of a String, 2576. Find Numbers with Even Number of Digits, 1296. Minimum Number of Increments on Subarrays to Form a Target Array, 1533. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. All People Report to the Given Manager, 1276. Minimum Number of Food Buckets to Feed the Hamsters, 2087. Substrings That Begin and End With the Same Letter, 2084. The Most Recent Orders for Each Product, 1551. Concatenation of Consecutive Binary Numbers, 1684. Minimum Operations to Make the Integer Zero, 2750. 1. Minimum Total Space Wasted With K Resizing Operations, 1960. Find Minimum in Rotated Sorted Array II, 158. Thank you for your valuable feedback! Max Difference You Can Get From Changing an Integer, 1433. Accepted Candidates From the Interviews, 2042. Disconnect Path in a Binary Matrix by at Most One Flip, 2557. Reverse Substrings Between Each Pair of Parentheses, 1196. Find the Punishment Number of an Integer, 2701. Capacity To Ship Packages Within D Days, 1013. Minimum Swaps To Make Sequences Increasing, 828. Decrypt String from Alphabet to Integer Mapping, 1312. Number of Subarrays With LCM Equal to K, 2471. Find the Longest Valid Obstacle Course at Each Position, 1966. Widest Pair of Indices With Equal Range Sum, 1984. Count the Digits That Divide a Number, 2521. Can a Rogue Inquisitive use their passive Insight with Insightful Fighting? However, in the body of your loop you have written an index of i + 1 as well. Ways to Express an Integer as Sum of Powers, 2789. This is the best place to expand your knowledge and get prepared for your next interview. If X matches with the middle element ( arr [mid] ), return the index mid. It will return true if there are two or more consecutive ordered elements, but not necessarily all. Count Positions on Street With Required Brightness, 2238. Maximum Product of the Length of Two Palindromic Substrings, 1961. Customer Placing the Largest Number of Orders, 597. Maximum Sum of Two Non-Overlapping Subarrays, 1038. Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree, 1491. Maximum Score Words Formed by Letters, 1261. Minimum Space Wasted From Packaging, 1893. Average Value of Even Numbers That Are Divisible by Three, 2457. Learning how to walk slowly to not miss important things, All articles in this blog are licensed under, [Codeforces] Round 881 (Div. Help us improve. Most Visited Sector in a Circular Track, 1561. Find Three Consecutive Integers That Sum to a Given Number, 2178. Count the Number of Complete Components, 2689. Check if String Is Decomposable Into Value-Equal Substrings, 1935. Level up your coding skills and quickly land a job. Construct Binary Tree from Inorder and Postorder Traversal, 107. Maximum XOR With an Element From Array, 1712. Longest Repeating Character Replacement, 426. The problem is generally referred to as Search in Rotated Sorted Array Leetcode Solution. Count Ways to Make Array With Product, 1736. Groups of Special-Equivalent Strings, 915. Maximal Score After Applying K Operations, 2531. Minimum Operations to Make Numbers Non-positive, 2710. You can rotate any number of positions to make nums. Minimum Number of Flips to Make the Binary String Alternating, 1889. Find Total Time Spent by Each Employee, 1743. Maximum Product of the Length of Two Palindromic Subsequences, 2003. Find Customers With Positive Revenue this Year, 1823. Shortest Path in a Grid with Obstacles Elimination, 1295. What happens if sealant residues are not cleaned systematically on tubeless tires used for commuters? Maximum Absolute Sum of Any Subarray, 1750. Space Complexity: O(1) as no extra space has been used. Longest Substring of One Repeating Character, 2216. Count Collisions of Monkeys on a Polygon, 2554. if any element is smaller than its previous element then It's not sorted in ascending order. Is not listing papers published in predatory journals considered dishonest? Minimum Obstacle Removal to Reach Corner, 2292. Determine if String Halves Are Alike, 1707. Find All Possible Recipes from Given Supplies, 2116. Insufficient Nodes in Root to Leaf Paths, 1081. Divide Array Into Increasing Sequences, 1123. Count Paths That Can Form a Palindrome in a Tree. Serialize and Deserialize Binary Tree, 298. Count Substrings That Differ by One Character, 1639. Sum of Digits in the Minimum Number, 1100. Running Total for Different Genders, 1309. Take K of Each Character From Left and Right, 2520. Largest Element in an Array after Merge Operations, 2790. I was wondering if someone could take a look at my code and kind of explain why I'm getting an array out of bounds exception. Minimum Moves to Equal Array Elements II, 467. Minimum Number of Operations to Make Array Continuous, 2010. Maximum Score After Splitting a String, 1423. Divide a String Into Groups of Size k, 2139. Find Resultant Array After Removing Anagrams, 2274. Find Minimum in Rotated Sorted Array, 154. We traverse the given array. After swapping, we again check if the array becomes sorted or not. Check If Two String Arrays are Equivalent, 1663. Minimum Cost of Buying Candies With Discount, 2146. Number of Substrings With Fixed Ratio, 2491. Minimum Time to Remove All Cars Containing Illegal Goods, 2168. Check If All 1's Are at Least Length K Places Away, 1438. Maximum Element After Decreasing and Rearranging, 1848. Remove Duplicates from Sorted List II, 103. Widest Vertical Area Between Two Points Containing No Points, 1638. Convert Callback Based Function to Promise Based Function, 2779. Minimum Number of Swaps to Make the String Balanced, 1964. Maximum Number of Achievable Transfer Requests, 1602. Longest Path With Different Adjacent Characters, 2247. Find Minimum Time to Finish All Jobs, 1724. Longest Substring Without Repeating Characters, 17. Count the Number of Square-Free Subsets, 2575. Number of Visible People in a Queue, 1945. Count Substrings with Only One Distinct Letter, 1186. Find Consecutive Integers from a Data Stream, 2529. Minimum Cost to Change the Final Value of Expression, 1897. only accesses array elements, last part of end condition are not Job-a-Thon. All Valid Triplets That Can Represent a Country, 1624. Maximum Difference by Remapping a Digit, 2567. So in the question, we are provided with an array of some integer elements that are sorted and rotated at a certain index that is not known to us. Number of Submatrices That Sum to Target, 1080. Delete N Nodes After M Nodes of a Linked List, 1475. Minimum Score After Removals on a Tree, 2323. (n / 2 + 1): (n / 2); for (i = 0; i < last_index; i++) { times */ if (arr [i] == x && arr [i + n / 2] == x) return 1; } return 0; } /* Driver code */ int main () { int arr [] = {1, 2, 3, 4, 4, 4, 4}; Examples: Input: arr [] = {0, -1, 2, -3, 1}, x= -2 Output: Yes Explanation: If we calculate the sum of the output,1 + (-3) = -2 Input: arr [] = {1, -2, 1, 0, 5}, x = 0 Output: No Recommended Problem Note: An array A rotated by x positions results in an array B of the same length such that A . Count Lattice Points Inside a Circle, 2250. Note: An array A rotated by x positions results in an array B of the same length such that A[i] == B[(i+x) % A.length], where % is the modulo operation. Sort Linked List Already Sorted Using Absolute Values, 2047. Customer Who Visited but Did Not Make Any Transactions, 1582. Add Edges to Make Degrees of All Nodes Even, 2510. Partition Array into Disjoint Intervals, 921. There may be duplicates in the original array. 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Formatted question description: https://leetcode.ca/all/1752.html. Check if Array Is Sorted and Rotated Level Easy Description Given an array nums, return true if the array was originally sorted in non-decreasing order, then rotated some number of positions (including zero). Maximum Number of Non-Overlapping Subarrays With Sum Equals Target, 1549. Binary Tree Vertical Order Traversal, 317. Smallest Subsequence of Distinct Characters, 1085. how do they look? Remove All Ones With Row and Column Flips II, 2176. Maximum Points You Can Obtain from Cards, 1428. Javascript #include<bits/stdc++.h> using namespace std; bool isMajority (int arr [], int n, int x) { int i; int last_index = n % 2 ? Maximum XOR of Two Numbers in an Array, 423. If there are exactly 2 mismatches, we can swap the terms that are not in the position to get the sorted array. Since i functions as an index of your array, it makes sense pointing out that a[0] is the first element and a[a.length - 1] the last element of your array. Second Minimum Node In a Binary Tree, 673. Best Time to Buy and Sell Stock with Transaction Fee, 730. Maximum Product Difference Between Two Pairs, 1916. Check if Every Row and Column Contains All Numbers, 2134. acknowledge that you have read and understood our. /problems/remove-duplicates-from-sorted-array/solution/shan-chu-pai-xu-shu-zu-zhong-de-zhong-fu-tudo/ Find the Distance Value Between Two Arrays, 1389. Insert into a Sorted Circular Linked List, 712. Longest Subsequence Repeated k Times, 2015. Note: A permutation of integers represents an arrangement of these numbers. Minimum Number of Work Sessions to Finish the Tasks, 1989. When laying trominos on an 8x8, where must the empty square be? Minimum Number of Operations to Make String Sorted, 1835. Two Sum 2. Checking Existence of Edge Length Limited Paths II, 1725. Replace Non-Coprime Numbers in Array, 2200. For example, in an array of length 10, you have elements 0 to 9. a[i+1] when i is 9, will show a[10], which is out of bounds. Find the Maximum Divisibility Score, 2645. Ways to Split Array Into Three Subarrays, 1713. Number of Burgers with No Waste of Ingredients, 1277. Build Array Where You Can Find The Maximum Exactly K Comparisons, 1422. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. String to Integer (atoi) 9. Print the final array. Convert an Array Into a 2D Array With Conditions, 2616. Using a Robot to Print the Lexicographically Smallest String, 2435. Execution of All Suffix Instructions Staying in a Grid, 2121. To account for both ascending and descending arrays, I use the following: You shouldn't use a[i+1] because that value may or may not go off the array. Can You Eat Your Favorite Candy on Your Favorite Day? Minimum Replacements to Sort the Array, 2369. Lexicographically Smallest Palindrome, 2698. Check if Numbers Are Ascending in a Sentence, 2044. Minimum Flips in Binary Tree to Get Result, 2314. Minimum Operations to Halve Array Sum, 2209. Minimum Cost to Make All Characters Equal, 2713. Then store the indices of the minimum value, and check whether one of the indices can be the start index of a sorted array. Not the answer you're looking for? Satisfiability of Equality Equations, 995. Maximum Length of a Concatenated String with Unique Characters, 1240. Tip start your loop at i=1 and compare lower if length >1. Sort an Array Medium 5.1K 699 Companies Given an array of integers nums, sort the array in ascending order and return it. 2784. Contribute to the GeeksforGeeks community and help create better learning resources for all. Count the Number of Beautiful Subarrays, 2591. Distance to a Cycle in Undirected Graph, 2205. Replace All ? Find Cumulative Salary of an Employee, 581. Follow the steps below to solve the problem: Compare X with the middle element. Find Kth Largest XOR Coordinate Value, 1741. Minimum Number of K Consecutive Bit Flips, 1003. Count Elements With Strictly Smaller and Greater Elements, 2150. Maximum Number of Robots Within Budget, 2399. Change Null Values in a Table to the Previous Value, 2389. Partitioning Into Minimum Number Of Deci-Binary Numbers, 1697. . Maximum Sum Obtained of Any Permutation, 1593. Subarray With Elements Greater Than Varying Threshold, 2335. Seems like a bunch of diminishing geometric series whose sum is another geometric series which just gives 4 as n approaches n hence O(1). You are simply checking the first value, and only the first value. 1746. Painting a Grid With Three Different Colors, 1933. If you want to check if the array is sorted DESC or ASC: Here,this is code on checking the array is sorted or not, if it is sorted it return true, else false.I hope you understand the approach. Check If a Number Is Majority Element in a Sorted Array - Level up your coding skills and quickly land a job. Minimum Adjacent Swaps for K Consecutive Ones, 1704. Merge Triplets to Form Target Triplet, 1900. Insert Delete GetRandom O(1) - Duplicates allowed, 395. Maximum Total Beauty of the Gardens, 2237. Maximum Split of Positive Even Integers, 2184. An array arr[0..n-1] is sorted in wave form if:arr[0] >= arr[1] <= arr[2] >= arr[3] <= arr[4] >= .. First Day Where You Have Been in All the Rooms, 1999. Number of Subsequences That Satisfy the Given Sum Condition, 1502. Premium. Find Median Given Frequency of Numbers, 579. Divide Array in Sets of K Consecutive Numbers, 1297. Maximum Subarray Sum After One Operation, 1749. Minimum Lines to Represent a Line Chart, 2282. Number of People That Can Be Seen in a Grid, 2283. Maximum Number of Events That Can Be Attended, 1354. /problems/find-first-and-last-position-of-element-in-sorted-array/solutions/1980196/er-fen-cha-zhao-zong-shi-xie-bu-dui-yi-g-t9l9/ Count Pairs of Equal Substrings With Minimum Difference, 1798. Build an Array With Stack Operations, 1442. This is the \"Check if Array Is Sorted and Rotated\" leetcode question explanation in Java. Explanation: [1,1,1] is the original sorted array. Maximum Number of Ways to Partition an Array, 2030. Find The Original Array of Prefix Xor, 2434. Example 1: Input: N = 5 arr[] = {10, 20, 30, 40, 50} Output: 1 Explanation: The given array is sorted. Binary Tree Longest Consecutive Sequence, 302. Read N Characters Given read4 II - Call Multiple Times, 159. Choose Edges to Maximize Score in a Tree, 2379. Minimum Number of Moves to Make Palindrome, 2196. Maximum Matching of Players With Trainers, 2411. Minimum Sum of Four Digit Number After Splitting Digits, 2161. Minimum Number of Steps to Make Two Strings Anagram II, 2189. Run through your code. Maximum Sum of Distinct Subarrays With Length K, 2470. This function checks whether the array is in Sorted order or not irrespective of its order i.e, ascending or descending. Two Furthest Houses With Different Colors, 2083. Minimum Deletions to Make String Balanced, 1658. Non-negative Integers without Consecutive Ones, 602. Check If Two Expression Trees are Equivalent, 1614. Namely, there is a semicolon (;) before the curly brace ({) that starts the body of the loop. Number of Distinct Substrings in a String, 1699. Construct Binary Search Tree from Preorder Traversal, 1010. Minimum Initial Energy to Finish Tasks, 1671. How can the language or tooling notify the user of infinite loops? Explanation: [1,2,3,4,5] is the original sorted array. Triples with Bitwise AND Equal To Zero, 987. For anyone using Java 8 and above, here's a simple one-liner: With this expression, a[i+1], you are running off the end of the array. Minimum Garden Perimeter to Collect Enough Apples, 1955. Check if Array Is Sorted and Rotated - Given an array nums, return true if the array was originally sorted in non-decreasing order, then rotated some number of positions (including zero). Elements in Array After Removing and Replacing Elements, 2114. Minimum Cost to Separate Sentence Into Rows, 2056. Count Number of Ways to Place Houses, 2322. Count Ways to Group Overlapping Ranges, 2581. Find the Prefix Common Array of Two Arrays, 2660. Friend Requests I: Overall Acceptance Rate, 600. Minimum Operations to Remove Adjacent Ones in Matrix, 2124. "Print this diamond" gone beautifully wrong. Find All K-Distant Indices in an Array, 2201. Minimum Score Triangulation of Polygon, 1047. Number of Ways to Reorder Array to Get Same BST, 1574. How Many Numbers Are Smaller Than the Current Number, 1368. Maximum Trailing Zeros in a Cornered Path, 2246. Find Nearest Point That Has the Same X or Y Coordinate, 1780. Shortest Distance to Target String in a Circular Array, 2516. Binary Tree Zigzag Level Order Traversal, 105. Search in a Sorted Array of Unknown Size, 708. Minimum Difference Between Highest and Lowest of K Scores, 1985. How Many Apples Can You Put into the Basket, 1198. Replace Employee ID With The Unique Identifier, 1379. Minimum Swaps to Group All 1's Together, 1153. We count such occurrences. Maximum Difference Between Node and Ancestor, 1028. Connect and share knowledge within a single location that is structured and easy to search. Number Of Ways To Reconstruct A Tree, 1722. If you must compare to the next element, then stop your iteration 1 element early (and eliminate the semicolon, which Java would interpret as your for loop body): To check whether array is sorted or not we can compare adjacent elements in array. Number of Ways to Stay in the Same Place After Some Steps, 1270. Shortest Path with Alternating Colors, 1131. Minimize Hamming Distance After Swap Operations, 1723. Count Words Obtained After Adding a Letter, 2136. Contribute to the GeeksforGeeks community and help create better learning resources for all. First Completely Painted Row or Column, 2662. Check if Word Can Be Placed In Crossword, 2019. Split the Array to Make Coprime Products, 2586. Minimum Cost to Move Chips to The Same Position, 1218. This article is being improved by another user right now. Minimum Number of Steps to Make Two Strings Anagram, 1351. Flatten a Multilevel Doubly Linked List, 440. Rearrange Characters to Make Target String, 2290. Maximum Bags With Full Capacity of Rocks, 2280. Maximum Number of Books You Can Take, 2356. A descending array is also sorted. Kth Smallest Element in a Sorted Matrix, 381. Given an array A [] of n numbers and another number x, the task is to check whether or not there exist two elements in A [] whose sum is exactly x. Number of Different Subsequences GCDs, 1820. Maximum Candies Allocated to K Children, 2228. Time Complexity: O(N)Auxiliary Space: O(1). Convert Integer to the Sum of Two No-Zero Integers, 1318. Count Ways to Build Rooms in an Ant Colony, 1921. The Employee That Worked on the Longest Task, 2433. Java Python 14 5.3K 3 Check if Array Is Sorted and Rotated Solution in C++ The_Kunal_Singh May 03, 2023 C++ 1 1.8K 0 [C++] Graphical approach [Very Beginner Friendly] Find the Index of the Large Integer, 1536. Implementation: C++ Java Python 3 C# Javascript Traverse all even positioned elements of the input array, and do the following. Is it a concern? Number of Pairs of Strings With Concatenation Equal to Target, 2025. Last Substring in Lexicographical Order, 1168. Largest Positive Integer That Exists With Its Negative, 2442. Find the Quiet Students in All Exams, 1413. Find Servers That Handled Most Number of Requests, 1608. Maximum Number of Jumps to Reach the Last Index, 2771. Find the Minimum Number of Fibonacci Numbers Whose Sum Is K, 1415. Percentage of Users Attended a Contest, 1634. Count Common Words With One Occurrence, 2086. 1 check your index bounds - user180100 Oct 18, 2013 at 20:15 Also note that the code does not do what you say. Find Closest Node to Given Two Nodes, 2366. Construct Target Array With Multiple Sums, 1356. Longer Contiguous Segments of Ones than Zeros, 1876. Find centralized, trusted content and collaborate around the technologies you use most. All Elements in Two Binary Search Trees, 1308. Remove All Occurrences of a Substring, 1911. The condition ( a[i] > a[i+1] ) is always false in a sorted array. Consecutive Transactions with Increasing Amounts, 2702. Check if Array Is Sorted and Rotated Solution in C++ The_Kunal_Singh May 03, 2023 C++ 1 1K 0 Easy to understand C++ code using O (N) time and space complexity yash2dahake Feb 17, 2023 C++ 2 2K 0 [C++] Graphical approach [Very Beginner Friendly] ankursingh91002 Along with the array, we are also given a specific element that we need to find. Minimum Distance to the Target Element, 1849. Binary Searchable Numbers in an Unsorted Array, 1967. First and Last Call On the Same Day, 1973. Number of Nodes in the Sub-Tree With the Same Label, 1520. Help us improve. String Transforms Into Another String, 1155. Minimum Adjacent Swaps to Make a Valid Array, 2342. Count Number of Distinct Integers After Reverse Operations, 2446. To learn more, see our tips on writing great answers. Closest Nodes Queries in a Binary Search Tree, 2477. Minimum Operations to Make All Array Elements Equal, 2605. Amount of Time for Binary Tree to Be Infected, 2388. Minimum Changes To Make Alternating Binary String, 1759. Check If Array Pairs Are Divisible by k, 1498. Distribute Money to Maximum Children, 2593. For every element, we check if it is smaller than the previous element. Number of Ways to Reach a Position After Exactly k Steps, 2406. Number of Ways to Build House of Cards, 2190. Maximum Value at a Given Index in a Bounded Array, 1805. Managers with at Least 5 Direct Reports, 571. Employees Whose Manager Left the Company, 1979. Number of Substrings Containing All Three Characters, 1359. Check if Number is a Sum of Powers of Three, 1784.