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For each listed problem, the document provides at least one example input, the expected output, and a short explanation for the result in several cases.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},391220,1790552559,{"code":4,"msg":82,"data":83},"success",[84,88,92,95,100,105,110,115,120,123,127],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":93,"slug":94},70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":102,"show_sort_weight":103,"slug":104},6,"Technology",50,"technology",{"id":106,"doc_module":4,"doc_module_name":25,"category_name":107,"show_sort_weight":108,"slug":109},7,"Healthcare",40,"healthcare",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":112,"show_sort_weight":113,"slug":114},8,"Research & Report",30,"research-report",{"id":116,"doc_module":4,"doc_module_name":25,"category_name":117,"show_sort_weight":118,"slug":119},9,"Religion & Spirituality",20,"religion-spirituality",{"id":118,"doc_module":4,"doc_module_name":25,"category_name":121,"show_sort_weight":118,"slug":122},"World Cup","world-cup",{"id":124,"doc_module":4,"doc_module_name":25,"category_name":125,"show_sort_weight":124,"slug":126},10,"Lifestyle","lifestyle",{"id":128,"doc_module":4,"doc_module_name":25,"category_name":129,"show_sort_weight":96,"slug":130},19,"General","general",{"code":4,"msg":82,"data":132},{"doc_id":79,"user_id":133,"nickname":42,"user_avatar":134,"doc_module":4,"category_id":33,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":140,"language":141,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":12,"update_tm":145,"read_time":146,"preview_page_count":4},687207024643,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","75 MOST IMPORTANT LEETCODE DSA QUESTIONS  \n+91-7260058093  \n[info@algotutor.io](info@algotutor.io)  \n [www.algotutor.io](www.algotutor.io)  \nArray  \n1. Two Sum  \nGiven an array of integer nums and an integer target, return indices of the two numbers such that they add up to the target.  \nYou may assume that each input would have exactly one solution, and you may not use the same element twice.  \nYou can return the answer in any order.  \nInput: nums = [2,7, 11, 15], target = 9  \nOutput: [0, 1]  \nExplanation: Because nums[0] + nums[1] = = 9, we return [0, 1] .  \nPRACTICE NOW  \n2. Best Time to Buy and Sell Stock  \nYou are given an array of prices where prices[i] is the price of a given stock on an ith day.  \nYou want to maximize your profit by choosing a single day to buy one stock and choosing a different day in the future to sell that stock.  \nReturn the maximum profit you can achieve from this transaction. If you cannot achieve any profit, return 0  \nInput: prices = [7, 1, 5,3, 6,4]  \nOutput: 5  \nExplanation: Buy on day 2 (price = 1) and sell on day 5 (price = 6), profit = 6-1 = 5.  \nPRACTICE NOW  \n01  \n3. Contains Duplicate  \nGiven an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.  \nInput: nums = [1,2,3, 1]  \nOutput: true  \nPRACTICE NOW  \n4. Product of Array Except Self  \nGiven an integer array nums, return an array answer such that answer[i] is equal to the product of all the elements of nums except nums[I].  \nThe product of any prefix or suffix of nums is guaranteed to fit in a 32-bit integer.  \nYou must write an algorithm that runs in O ( n) time and without using the division operation.  \nInput: nums = [1,2,3,4]  \nOutput: [24, 12, 8, 6]  \nPRACTICE NOW  \n02  \n5. Maximum Subarray  \nGiven an integer array nums, find the subarray with the largest sum, and return its sum.  \nInput: nums = [-2, 1,-3,4,-1,2, 1,-5,4]  \nOutput: 6  \nExplanation: The sub array [4,-1,2, 1] has the largest sum 6.  \nInput: nums = [1]  \nOutput: 1  \nExplanation: The sub array [1] has the largest sum of 1.  \nPRACTICE NOW  \n6. Maximum Product Subarray  \nGiven an integer array nums, find a subarray that has the largest product, and return the product.  \nInput: nums = [2,3,-2,4]  \nOutput: 6  \nExplanation: [2,3] has the largest product 6.  \nInput: nums = [-2, 0,-1]  \nOutput: 0  \nExplanation: The result cannot be 2, because [-2,-1] is not a sub array.  \nPRACTICE NOW  \n03  \n7. Find the Minimum in Rotated Sorted Array  \nGiven the sorted rotated array nums of unique elements, return the minimum element of this array.  \nYou must write an algorithm that runs in O (log n) time.  \nInput: nums = [3,4, 5, 1,2]  \nOutput: 1  \nExplanation: The original array was [1,2,3,4, 5] rotated 3 times.  \nPRACTICE NOW  \n8. Search in Rotated Sorted Array  \nGiven the array nums after the possible rotation and an integer target, return the index of the target if it is in nums, or-1 if it is not in nums.  \nYou must write an algorithm with O (log n) runtime complexity.  \nInput: nums = [4, 5, 6,7, 0, 1,2], target = 0  \nOutput: 4  \nInput: nums = [4, 5, 6,7, 0, 1,2], target = 3  \nOutput: -1  \nPRACTICE NOW  \n04  \n9. 3Sum  \nGiven an integer array nums, return all the triplets [ nums[i], nums[j], nums[k]]  \nsuch that i != j, i ! = k, and j ! = k, and nums[i] + nums[j] + nums[k] = = 0. Notice that the solution set must not contain duplicate triplets.  \nInput: nums = [-1, 0, 1,2,-1,-4]  \nOutput: [[-1,-1,2],[-1, 0, 1]] Explanation:  \nnums[0] + nums[1] + nums[2] = (-1) + 0 + 1 = 0.  \nnums[1] + nums[2] + nums[4] = 0 + 1 + (-1) = 0.  \nnums[0] + nums[3] + nums[4] = (-1) + 2 + (-1) = 0. The distinct triplets are [-1, 0, 1] and [-1,-1,2] .  \nPRACTICE NOW  \n10. Container With Most Water  \nYou are given an integer array height of length n. There are n vertical lines drawn such that the two endpoints of the ith line are (i, 0) and (i, height[I]).  \nFind two lines that together with the x-axis form a container, such that the co","cbCaiafURHWy7fty","https://ap.wps.com/l/cbCaiafURHWy7fty","pdf",5901457,46,"English","# Arrays\n## Two Sum\n## Best Time to Buy and Sell Stock\n## Contains Duplicate\n## Product of Array Except Self\n## Maximum Subarray\n## Maximum Product Subarray\n## Find the Minimum in Rotated Sorted Array\n## Search in Rotated Sorted Array\n## 3Sum\n## Container With Most Water\n# Matrix\n## Set Matrix Zeroes\n## Spiral Matrix\n## Rotate Image\n## Word Search\n# String\n## Longest Substring","[{\"question\":\"What are the array topics covered in these LeetCode DSA questions?\",\"answer\":\"The document covers classic array problems including Two Sum, stock buy-sell profit, duplicate detection, product of array except self, maximum subarray/product, rotated sorted array minimum search, rotated array target search, 3Sum, and container with most water.\"},{\"question\":\"What matrix problem types are included?\",\"answer\":\"It includes Set Matrix Zeroes, Spiral Matrix, Rotate Image, and Word Search, each with example inputs and outputs and corresponding solution requirements.\"},{\"question\":\"Do the questions provide sample input/output and explanations?\",\"answer\":\"Yes. For each listed problem, the document provides at least one example input, the expected output, and a short explanation for the result in several cases.\"}]","75 MOST IMPORTANT LEETCODE DSA QUESTIONS - Practice Problems | PDF",1790350202,116]