Contribute your expertise and make a difference in the GeeksforGeeks portal. Number of Distinct Substrings in a String, 1699. Longest Subsequence With Limited Sum, 2391. Zigzag Conversion 7. Count Number of Pairs With Absolute Difference K, 2007. Distribute Money to Maximum Children, 2593. Minimum Length of String After Deleting Similar Ends, 1751. Therefore, 2 for loops and a .substring() call within those loops equals an O(N^3) time complexity. Count Words Obtained After Adding a Letter, 2136. All the Pairs With the Maximum Number of Common Followers, 1953. Count Unique Characters of All Substrings of a Given String | Leetcode Minimum Flips in Binary Tree to Get Result, 2314. pass 3: (all the strings are of length 4) abcd = 1 strings. Find the Subtasks That Did Not Execute, 1769. Connecting Cities With Minimum Cost, 1141. Design an Expression Tree With Evaluate Function, 1633. Longest Subarray With Maximum Bitwise AND, 2422. Sum Of Special Evenly-Spaced Elements In Array, 1717. Find Two Non-overlapping Sub-arrays Each With Target Sum, 1481. 828. Maximum Score After Splitting a String, 1423. Flip Columns For Maximum Number of Equal Rows, 1074. See your article appearing on the GeeksforGeeks main page and help other Geeks. If you like GeeksforGeeks and would like to contribute, you can also write an article using write.geeksforgeeks.org or mail your article to review-team@geeksforgeeks.org. Optimize Water Distribution in a Village, 1170. The time complexity for this approach is O(n^2) similar to previous approach but the space reduces to O(n)*26. Find Cumulative Salary of an Employee, 581. Solution. Lowest Common Ancestor of a Binary Tree II, 1647. Ways to Express an Integer as Sum of Powers, 2789. Minimize Hamming Distance After Swap Operations, 1723. You will be notified via email once the article is available for improvement. Algebraically why must a single square root be done on all terms rather than individually? Minimum Operations to Make the Array K-Increasing, 2113. Binary Tree Level Order Traversal II, 108. Expected Time Complexity : O (N2logN) Expected Auxilliary Space : O (N2) Constraints: Delete Characters to Make Fancy String, 1959. Find Consecutive Integers from a Data Stream, 2529. Count Unique Characters of All Substrings of a Given String | Leetcode 828 1 waiting Premieres Aug 17, 2022 0 Dislike Share Save TECH DOSE 120K subscribers This video explains a very. Number of Steps to Reduce a Number in Binary Representation to One, 1412. Required fields are marked *. If we consider printing string x to take O(|x|) time, then yes, it is Omega(n^2). Maximum Number of Groups Entering a Competition, 2359. @Yuval..Did you get the efficient algo? Subsequence of Size K With the Largest Even Sum, 2099. Remove Stones to Minimize the Total, 1963. Smallest K-Length Subsequence With Occurrences of a Letter, 2031. Lexicographically Smallest Palindrome, 2698. Subtree Removal Game with Fibonacci Tree, 2006. Input: abc, k = 2Output: 2Possible substrings are {ab, bc}, Input: aba, k = 2Output: 3Possible substrings are {ab, ba, aba}, Input: aa, k = 1Output: 3Possible substrings are {a, a, aa}, Method 1 (Brute Force): If the length of string is n, then there can be n*(n+1)/2 possible substrings. Words Within Two Edits of Dictionary, 2455. Find Three Consecutive Integers That Sum to a Given Number, 2178. pass 2: (all the strings are of length 3) abc, bcd = 2 strings. Find The Original Array of Prefix Xor, 2434. Count the Number of Square-Free Subsets, 2575. Maximum Font to Fit a Sentence in a Screen, 1619. Finally we return size of the HashSet. Maximum Number of Robots Within Budget, 2399. Flip Binary Tree To Match Preorder Traversal, 982. Minimum Addition to Make Integer Beautiful, 2458. Count Unique Characters of All Substrings of a Given String - LeetCode Count Number of Rectangles Containing Each Point, 2259. Distance to a Cycle in Undirected Graph, 2205. Partition Array into Disjoint Intervals, 921. Add Two Numbers 3. Minimum Cost to Reach Destination in Time, 1930. Widest Pair of Indices With Equal Range Sum, 1984. If I allow permissions to an application using UAC in Windows, can it hack my personal files or data? Generate all unique substrings for given string - Stack Overflow Remove Duplicates from Sorted Array II, 82. Minimum Lines to Represent a Line Chart, 2282. Longest Palindrome by Concatenating Two Letter Words, 2133. Third One using LCP by initially finding all the suffix of a given string which has the worst case O(N^2) and best case O(N Log(N)). Find the Maximum Divisibility Score, 2645. Construct Binary Search Tree from Preorder Traversal, 1010. Substring with Concatenation of All Words, 34. For k = 2, o/p is 'bdbdbbd' For k = 3, o/p is 'bcbdbdbbdcd' For k = 5, o/p is 'abcbdbdbbdcdabd' Here is my code is taken from this site: I tested the algorithms against a string of length over 47,000 and the algorithms took over 20 minutes to complete, with the first one taking 1200 seconds, and the second one taking 1360 seconds, and that's just counting the unique substrings without outputting to the terminal. Sort Items by Groups Respecting Dependencies, 1209. Minimum Moves to Equal Array Elements II, 467. In order to calculate count, let's analyze the following pattern. Find Total Time Spent by Each Employee, 1743. Input Format A string Output Format A number representing count of substrings with exactly K unique characters. Max Sum of a Pair With Equal Sum of Digits, 2344. Number of Pairs Satisfying Inequality, 2431. Find the Maximum Number of Marked Indices, 2577. Maximum Employees to Be Invited to a Meeting, 2128. Find the Punishment Number of an Integer, 2701. Flatten a Multilevel Doubly Linked List, 440. Find the Minimum Number of Fibonacci Numbers Whose Sum Is K, 1415. Maximum Product Difference Between Two Pairs, 1916. Count Unique Characters of All Substrings of a Given String - Leetcode Checking Existence of Edge Length Limited Paths, 1698. Medium Accuracy: 20.46% Submissions: 28K+ Points: 4. Number of Ways to Rearrange Sticks With K Sticks Visible, 1867. Longest Substring Without Repeating Characters 4. Will do so and report back. You are given a string (str) and a number K. 2. Check if All A's Appears Before All B's, 2127. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts, 1466. Binary Tree Vertical Order Traversal, 317. Minimum Cost of a Path With Special Roads, 2663. OverflowAI: Where Community & AI Come Together, Generate all unique substrings for given string, Behind the scenes with the folks building OverflowAI (Ep. Binary Searchable Numbers in an Unsorted Array, 1967. Count Subarrays With More Ones Than Zeros, 2033. Concatenate the Name and the Profession, 2507. 1744. Maximum Number of Consecutive Values You Can Make, 1802. Maximal Score After Applying K Operations, 2531. TIA. Help us improve. find number of repeating substrings in a string, Algorithm to generate a unique string of a certain format. Find Nearest Point That Has the Same X or Y Coordinate, 1780. Stay tuned. Check if Number is a Sum of Powers of Three, 1784. String Transforms Into Another String, 1155. Maximum Product of the Length of Two Palindromic Substrings, 1961. Earliest Possible Day of Full Bloom, 2137. Execute Asynchronous Functions in Parallel, 2730. Example 1: Example 2: Constraints: 1 <= s.length, t.length <= 100 s and t consist of lowercase English letters only. Divide Nodes Into the Maximum Number of Groups, 2494. Maximum Strictly Increasing Cells in a Matrix, 2715. Construct Binary Tree from Inorder and Postorder Traversal, 107. Minimum Adjacent Swaps for K Consecutive Ones, 1704. Binary Tree Longest Consecutive Sequence II, 558. Find the Index of the Large Integer, 1536. Given a string s, return the sum of countUniqueChars(t) where t is a substring of s. Notice that some substrings can be repeated so in this case you have to count the repeated ones too. Maximum Number of Achievable Transfer Requests, 1602. Append Characters to String to Make Subsequence, 2489. Minimum Score of a Path Between Two Cities, 2493. Shortest Path with Alternating Colors, 1131. Minimum ASCII Delete Sum for Two Strings, 714. Count All Valid Pickup and Delivery Options, 1364. Merge Two 2D Arrays by Summing Values, 2571. Sum of lengths of all substring is 1 + 1 + 1 + 2 + 2 + 3 = 10 Example 2: Input: "ABA" Output: 8 Explanation: The same as example 1, except uni ("ABA") = 1. Minimum Changes To Make Alternating Binary String, 1759. So by adding a .substring() call in your code, the order of N has increased by one. Find the Substring With Maximum Cost, 2609. Let's define UNIQ(S) as the number of unique characters in string S. Given a string S with only uppercases, calculate the sum of UNIQ(substring) over all non-empty substrings of S. If there are two or more equal substrings at different positions in S, we consider them different. What do multiple contact ratings on a relay represent? Minimum Moves to Reach Target with Rotations, 1213. Sum of Mutated Array Closest to Target, 1304. Count Pairs of Equal Substrings With Minimum Difference, 1798. Keep track of counts of letters. CountAndSay (4) = say "21" = one time 2 and one time 1 = "1211". ObservationAs we scan the string from left to right, at each step i(0 indexed), there will be i + 1new substrings ending at s[i]. Minimum Cost Homecoming of a Robot in a Grid, 2089. Largest Number After Digit Swaps by Parity, 2232. Next Greater Numerically Balanced Number, 2051. Keep Multiplying Found Values by Two, 2155. Construct Binary Tree from Preorder and Postorder Traversal, 893. 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 Separate Sentence Into Rows, 2056. Maximum Product of Splitted Binary Tree, 1342. Count Ways to Build Rooms in an Ant Colony, 1921. Check if String Is Decomposable Into Value-Equal Substrings, 1935. Orders With Maximum Quantity Above Average, 1868. Minimum Number of Flips to Make the Binary String Alternating, 1889. Serialize and Deserialize N-ary Tree, 430. Minimum Operations to Make the Array Alternating, 2171. Lowest Common Ancestor of a Binary Search Tree, 236. Explanation: CountAndSay (1) = "1". Minimum Time For K Virus Variants to Spread, 1957. Build Binary Expression Tree From Infix Expression, 1599. Maximum Number of Groups Getting Fresh Donuts, 1819. Problem List Maximum Product of Two Elements in an Array, 1465. Minimum One Bit Operations to Make Integers Zero, 1612. Most Stones Removed with Same Row or Column, 952. Check if Word Can Be Placed In Crossword, 2019. In this OpenGenus article, we will be solving Find number of substrings with exactly k distinct characters problem. Both solutions did compute the same total number of unique substrings though. Maximum XOR of Two Numbers in an Array, 423. Count Nodes Equal to Average of Subtree, 2267. Minimum Swaps to Make Strings Equal, 1249. Probability of a Two Boxes Having The Same Number of Distinct Balls, 1474. Data Structure & Algorithm Classes (Live), Data Structure & Algorithm-Self Paced(C++/JAVA), Full Stack Development with React & Node JS(Live), Top 100 DSA Interview Questions Topic-wise, Top 20 Interview Questions on Greedy Algorithms, Top 20 Interview Questions on Dynamic Programming, Top 50 Problems on Dynamic Programming (DP), Commonly Asked Data Structure Interview Questions, Top 20 Puzzles Commonly Asked During SDE Interviews, Top 10 System Design Interview Questions and Answers, Indian Economic Development Complete Guide, Business Studies - Paper 2019 Code (66-2-1), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Print the season name of the year based on the month number, Find the hypotenuse of a right angled triangle with given two sides. Longest Arithmetic Subsequence of Given Difference, 1227. Execute Cancellable Function With Delay, 2721. Decrypt String from Alphabet to Integer Mapping, 1312. The idea is to insert characters that are not already present in the Trie. Contribute your expertise and make a difference in the GeeksforGeeks portal. Remove Duplicates from Sorted List II, 103. Find Median Given Frequency of Numbers, 579. Number of Valid Words for Each Puzzle, 1180. Output Format. Count Positions on Street With Required Brightness, 2238. O(a^n)? the question is about all possible substrings "abcdf" is not a substring of "abcdef", New! Alert Using Same Key-Card Three or More Times in a One Hour Period, 1605. Final Value of Variable After Performing Operations, 2014. Max Sum of Rectangle No Larger Than K, 378. Check if Number Has Equal Digit Count and Digit Value, 2287.
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