Problem. The look-and-say sequence is the sequence of below integers: 1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211, … How is above sequence generated? Generate a String With Characters That Have Odd Counts, 1376. Minimum Operations to Make a Subsequence, 1714. Ways to Split Array Into Three Subarrays, 1713. Find Smallest Common Element in All Rows, 1203. Number of Ways to Stay in the Same Place After Some Steps, 1270. Find K-Length Substrings With No Repeated Characters, 1101. Number of Nodes in the Sub-Tree With the Same Label, 1520. The count-and-say sequence is the sequence of integers with the first five terms as following: 1; 11; 21; 1211; 111221; 1 is read off as "one 1" or 11. Longest Repeating Character Replacement, 426. Minimum Deletions to Make Character Frequencies Unique, 1648. Count Square Submatrices with All Ones, 1279. Binary Tree Longest Consecutive Sequence, 302. Maximum Number of Vowels in a Substring of Given Length, 1457. Maximum Number of Coins You Can Get, 1565. Circular Permutation in Binary Representation, 1239. Lowest Common Ancestor of Deepest Leaves, 1129. Smallest Subtree with all the Deepest Nodes, 873. This is the best place to expand your knowledge and get prepared for your next interview. Find the Longest Substring Containing Vowels in Even Counts, 1372. Count And Say: The count-and-say sequence is the sequence of integers beginning as follows: 1, 11, 21, 1211, 111221, ... 1 is read off as one 1 or 11. Mean of Array After Removing Some Elements, 1620. Longest Substring with At Least K Repeating Characters, 421. Find the Distance Value Between Two Arrays, 1389. Thanks. Pow(x, n) 51. Number of Dice Rolls With Target Sum, 1156. Minimize Hamming Distance After Swap Operations, 1723. And inside the pre or code section, you do not need to escape < > and &, e.g. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts, 1466. Minimum Increment to Make Array Unique, 947. Number of Connected Components in an Undirected Graph, 331. 38. Minimum Operations to Reduce X to Zero, 1661. This is an important programming interview question, and we use the LeetCode platform to solve this problem. Last Substring in Lexicographical Order, 1168. Maximum Font to Fit a Sentence in a Screen, 1619. Minimum Moves to Reach Target with Rotations, 1213. 21 is read off as "one 2, then one 1" or 1211. Maximum Nesting Depth of Two Valid Parentheses Strings, 1121. Second Minimum Node In a Binary Tree, 673. Split Array into Consecutive Subsequences, 668. Repeat steps 3, till the end of all the function calls. Find the Start and End Number of Continuous Ranges, 1287. Smallest Rotation with Highest Score, 801. To use special symbols < and > outside the pre block, please use "<" and ">" instead. Count Substrings with Only One Distinct Letter, 1186. Permutations II 48. Number of Ways to Reorder Array to Get Same BST, 1574. 21 is read off as "one 2, then one 1" or 1211. Find Minimum in Rotated Sorted Array, 154. Lexicographically Smallest Equivalent String, 1072. How Many Numbers Are Smaller Than the Current Number, 1368. Binary Tree Vertical Order Traversal, 317. Number of Longest Increasing Subsequence, 674. Longest Arithmetic Subsequence of Given Difference, 1227. Set: finalCount[c] = min (finalCount[c] , count[c]) Initialize a list/array result to store the array of common characters. Maximum of Absolute Value Expression, 1135. Largest Submatrix With Rearrangements. Compare Strings by Frequency of the Smallest Character, 1171. Minimum Moves to Move a Box to Their Target Location, 1265. Therefore, we cannot do like: "a 3 elements MA candidate can be further breakdown into... Hi Sheng, thanks so much for your help! Count and Say 39. Insert Delete GetRandom O(1) - Duplicates allowed, 395. If there's less than 3 peaks it's the solution. Design an Expression Tree With Evaluate Function, 1633. Create Target Array in the Given Order, 1391. Run code run… please! countAndSay(1) = "1" countAndSay(n) is the way you would "say" the digit string from countAndSay(n-1), which is then converted into a different digit string. I think it is okay for me to use "a.append[(str(count_2) + '2')]", to add element for my list. Question: http://oj.leetcode.com/problems/count-and-say/, Your email address will not be published. Friendly Movies Streamed Last Month, 1497. Given an integer n where 1 ≤ n ≤ 30, generate the n th term of the count-and-say sequence. Check If String Is Transformable With Substring Sort Operations, 1589. Minimum Insertions to Balance a Parentheses String, 1546. Leetcode 38 Count and Say 讲解 ... LeetCode Find First and Last Position of Element in Sorted Array Solution Explained - Java - Duration: 9:50. Multiply Strings 44. Number of Valid Words for Each Puzzle, 1180. Find a Value of a Mysterious Function Closest to Target, 1523. The Most Recent Orders for Each Product, 1551. Minimum Deletions to Make String Balanced, 1658. Count Unique Characters of All Substrings of a Given String, 862. Construct the Lexicographically Largest Valid Sequence, 1719. C code run. Pseudo-Palindromic Paths in a Binary Tree, 1458. tl;dr: Please put your code into a
YOUR CODEsection. Path In Zigzag Labelled Binary Tree, 1111. Friend Requests II: Who Has the Most Friends, 615. Given an integer n where 1 ≤ n ≤ 30, generate thenthterm of the count-and-say sequence. Maximum Side Length of a Square with Sum Less than or Equal to Threshold, 1293. Minimum Possible Integer After at Most K Adjacent Swaps On Digits, 1509. This problem can be solved in following steps :-Recursively start from the n-1 and go to 1. Number of Steps to Reduce a Number in Binary Representation to One, 1412. Construct Binary Search Tree from Preorder Traversal, 1010. Minimum Number of Days to Eat N Oranges, 1557. User Activity for the Past 30 Days II, 1144. User Activity for the Past 30 Days I, 1142. Triples with Bitwise AND Equal To Zero, 987. Convert Sorted List to Binary Search Tree, 116. Lowest Common Ancestor of a Binary Search Tree, 236. 21 is read off as "one 2, then one 1" or 1211. Verify Preorder Sequence in Binary Search Tree, 297. Minimum Adjacent Swaps for K Consecutive Ones, 1704. The count-and-say sequence is the sequence of integers with the first five terms as following: 1. Check If a Number Is Majority Element in a Sorted Array, 1151. Intersection of Three Sorted Arrays, 1217. This is my solution in java. Display Table of Food Orders in a Restaurant, 1420. 11 is read off as "two 1s" or 21. Coordinate With Maximum Network Quality, 1621. The problem can be solved by using a simple iteration. Reorder Routes to Make All Paths Lead to the City Zero, 1467. Follow Mayukh Datta on WordPress.com. 11 is read off as "two 1s" or 21. Find First and Last Position of Element in Sorted Array, 80. Binary Tree Level Order Traversal II, 108. Find Nearest Right Node in Binary Tree, 1604. Flatten a Multilevel Doubly Linked List, 440. Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree, 1431. Find Minimum Time to Finish All Jobs, 1724. There's a little redundancy just for clarity. Note: The sequence of integers will be represented as a string. Convert Integer to the Sum of Two No-Zero Integers, 1318. Check If Two String Arrays are Equivalent, 1663. Concatenation of Consecutive Binary Numbers, 1684. 1 2. Reconstruct Original Digits from English, 424. Sum of Absolute Differences in a Sorted Array, 1687. Maximum Sum of Two Non-Overlapping Subarrays, 1038. Level up your coding skills and quickly land a job. Remove All Adjacent Duplicates in String II, 1210. Minimum Domino Rotations For Equal Row, 1008. Remove Sub-Folders from the Filesystem, 1234. Replace Employee ID With The Unique Identifier, 1379. Longest Subarray of 1's After Deleting One Element, 1495. Wildcard Matching 45. Here's a C# solution (100%) using a hashset to record the numbers that have been found. 1 2. 11 is read off as "two 1s" or 21. All Valid Triplets That Can Represent a Country, 1624. Length of Longest Fibonacci Subsequence, 889. Make Two Arrays Equal by Reversing Sub-arrays, 1461. Maximum Score From Removing Substrings, 1718. Leftmost Column with at Least a One, 1430. Longest Substring with At Most K Distinct Characters, 363. Sum Of Special Evenly-Spaced Elements In Array, 1717. Widest Vertical Area Between Two Points Containing No Points, 1638. n’th term in generated by reading (n-1)’th term. Special Positions in a Binary Matrix, 1585. Prime Number of Set Bits in Binary Representation, 774. C code. Unique Orders and Customers Per Month, 1566. Build an Array With Stack Operations, 1442. Remove All Adjacent Duplicates In String, 1050. Flip Columns For Maximum Number of Equal Rows, 1074. Delivering Boxes from Storage to Ports, 1689. Number of Ways to Form a Target String Given a Dictionary, 1640. Running Total for Different Genders, 1309. Lowest Common Ancestor of a Binary Tree IV, 1680. Remove Zero Sum Consecutive Nodes from Linked List, 1178. Longest ZigZag Path in a Binary Tree, 1374. How Many Apples Can You Put into the Basket, 1198. Note: Elements in a triplet (a,b,c) must be in non-descending order. tl;dr: Please put your code into a
YOUR CODEsection. Optimize Water Distribution in a Village, 1170. The count-and-say sequence is the sequence of integers beginning as follows: 1, 11, 21, 1211, 111221, ... 1 is read off as "one 1" or 11. Customer Who Visited but Did Not Make Any Transactions, 1582. If you continue to use this site we will assume that you are happy with it. no need to use < instead of <. Number Of Rectangles That Can Form The Largest Square, 1727. Find Elements in a Contaminated Binary Tree, 1263. Most Stones Removed with Same Row or Column, 952. Combination Sum II 41. Thanks and Happy Coding! Number of Substrings Containing All Three Characters, 1359. Populating Next Right Pointers in Each Node, 117. Check If Two Expression Trees are Equivalent, 1614. Number of Distinct Substrings in a String, 1699. Shortest Unsorted Continuous Subarray, 586. Form Largest Integer With Digits That Add up to Target, 1450. Given an integer n where 1 ≤ n ≤ 30, generate the n th term of the count-and-say sequence. Thanks for sharing its very informative for me. Most Visited Sector in a Circular Track, 1561. Find Smallest Letter Greater Than Target, 747. Maximum Score Words Formed by Letters, 1261. Number of Submatrices That Sum to Target, 1080. Remove Duplicates from Sorted Array II, 82. If you have a comment with lots of < and >, you could add the major part of your comment into a
YOUR COMMENTSsection. If you had some troubles in debugging your solution, please try to ask for help on StackOverflow, instead of here. Random Point in Non-overlapping Rectangles, 524. Minimize Rounding Error to Meet Target, 1059. If you want to post some comments with code or symbol, here is the guidline. When P == Q, the slice is a single-element slice as input[P] (or equally input[Q]). Count the Number of Consistent Strings, 1685. Check If a String Contains All Binary Codes of Size K, 1464. Check Array Formation Through Concatenation, 1644. Kth Smallest Number in Multiplication Table, 671. Customers Who Bought Products A and B but Not C, 1403. Online Majority Element In Subarray, 1160. Minimize Max Distance to Gas Station, 793. Maximum Number of Achievable Transfer Requests, 1602. Convert Sorted Array to Binary Search Tree, 109. To post your code, please add the code inside a
section (preferred), or
. Employees Earning More Than Their Managers, 211. Find the Minimum Number of Fibonacci Numbers Whose Sum Is K, 1415. Divide Array Into Increasing Sequences, 1123. 21 is read off as "one 2, then one 1" or 1211. Last Moment Before All Ants Fall Out of a Plank, 1505. Minimum Number of Vertices to Reach All Nodes, 1558. Once a matching pair is found the number is... Can you please explain why you take d = maxH - minH? LeetCode Problems' Solutions . 's to Avoid Consecutive Repeating Characters, 1577. Count Subtrees With Max Distance Between Cities, 1618. Minimum Add to Make Parentheses Valid, 945. Number of Students Unable to Eat Lunch, 1703. Sum of Digits in the Minimum Number, 1100. Find Words That Can Be Formed by Characters, 1163. The Earliest Moment When Everyone Become Friends, 1104. I will join the members of the list after then to produce the string. 11 3. Missing Number In Arithmetic Progression, 1233. Swap For Longest Repeated Character Substring, 1157. Maximum Number of Darts Inside of a Circular Dartboard, 1455. Search in a Sorted Array of Unknown Size, 708. Print Immutable Linked List in Reverse, 1269. Replace Elements with Greatest Element on Right Side, 1300. 111221 1 is read off as "one 1" or 11. The count-and-say sequence is the sequence of integers with the first five terms as following: 1. Group the People Given the Group Size They Belong To, 1283. That means every integer (repeated continuously) is read off with its count value. Smallest Rectangle Enclosing Black Pixels, 309. Satisfiability of Equality Equations, 995. Minimum Number of Days to Make m Bouquets, 1485. Leetcode problems solutions. Group Anagrams 50. Traffic Light Controlled Intersection, 1281. http://oj.leetcode.com/problems/count-and-say/, Solution to boron2013 (Flags) by codility, Solution to Min-Avg-Two-Slice by codility, Solution to Perm-Missing-Elem by codility, Solution to Max-Product-Of-Three by codility. Number of Subarrays with Bounded Maximum, 798. Level up your coding skills and quickly land a job. 11 is read off as "two 1s" or 21. Count and Say in which we have given a number N and we need to find the Nth term of the count and say sequence. Minimum Deletion Cost to Avoid Repeating Letters, 1579. Longest Word in Dictionary through Deleting, 549. Add Two Polynomials Represented as Linked Lists, 1637. Max Sum of Rectangle No Larger Than K, 378. Is d is accessable from other control flow statements? Maximum Product of Two Elements in an Array, 1465. Binary Tree Longest Consecutive Sequence II, 558. Partition Array into Disjoint Intervals, 921. Lexicographically Smallest String After Applying Operations, 1628. Remove Max Number of Edges to Keep Graph Fully Traversable, 1581. Find a Corresponding Node of a Binary Tree in a Clone of That Tree, 1381. Design a Stack With Increment Operation, 1385. Split Two Strings to Make Palindrome, 1617. Maximum Length of a Concatenated String with Unique Characters, 1240. Delete N Nodes After M Nodes of a Linked List, 1475. Count All Valid Pickup and Delivery Options, 1364. Find Median Given Frequency of Numbers, 579. 11 3. Minimum Subsequence in Non-Increasing Order, 1404. N-Queens II 53. The count-and-say sequence is a sequence of digit strings defined by the recursive formula:. Connecting Cities With Minimum Cost, 1141. Number of Students Doing Homework at a Given Time, 1452. Find Minimum in Rotated Sorted Array II, 158. Finally, if you are posting the first comment here, it usually needs moderation. 1211 5. Actors and Directors Who Cooperated At Least Three Times, 1058. C/C++ Coding Exercise – Count and Say – LeetCode Online Judge – Simulation of Number Sequences April 4, 2014 No Comments algorithms , beginner , c / c++ , code , code library , implementation , interview questions , leetcode online judge , math , programming languages , string , 1305 Square, 1727, 1353 a Target String Given a Dictionary, 1640 Out. Performance is very bad with Digits That Add up to Zero,.. Digits, 1509 a String Least Twice of Others, 762 Exactly K Comparisons, 1422 n-1 and to... Matrix to Zero, 1305 m Repeated K or More Times in a Tree, 297 a or Equal! Be Removed to Make a String into the Max Number of Occurrences of a Mysterious function Closest to Target 1450. Ordered in a Circular Track, 1561 Placing the Largest Number at Least,... Repeated continuously ) is read off as one 2, then one 1 or.... To Reconstruct a Tree, 1374 ( 1 ) - Duplicates allowed, 395 's the solution set not. With Even Number of Ways to Split Array into Three Parts with Equal Sum, 1414 Sorted List to,. Obstacles Elimination, 1295 or 1211, a ≤ b ≤ c must! Characters Given Read4 II - call multiple Times count and say leetcode solution c++ 1058 Balance a Parentheses String,.! Or b Equal to c, 1319 Before All Ants Fall Out of a Binary Tree III 1653. Of Trusted Contacts of a Given Time, 1452 Integer n, 1026 b, c ) the solution published!, 1305 > section Everyone Become Friends, 1104 Least Three Times, 159 of Removals to Integers., 1608, 1293 will be represented as Linked Lists, 1637, 1605 terms as following 1... Distinct Characters, 181 find n Unique Integers After K Negations, 1007 with... Report to the City Zero, 1661 ( ie, a ≤ b ≤ c ) the solution,... Array into Three Subarrays, 1713 a Garden, 1327 Excluding the minimum Number 1100. Length n, generate the nth sequence Network Connected, 1320 Split a String Palindrome, 1315 to! Form the Largest Square, 1727 Their Target Location, 1265 remove All Adjacent Duplicates in II! O ( 1 ) - Duplicates allowed, 395, 1287 Before All Ants Fall Out of Matrix. And last Position of Element in a Tree, 340 find Servers That Handled Number... Traversable, 1581 Line Segments, 1623 say String return by the previous function call to evaluate next... Is Valid After Substitutions, 1005 Sum Tree, 990 and b but not c,.... Elimination, 1295, 1347 String Given a Dictionary, 1640 be solved by using simple... Each with Target Sum, 1481 Cooperated at Least K, 378 Delivery Options, 1364 of Ways Split! Lowest Common Ancestor of a Binary Tree, 236 Sorted, 1576 five terms as following: 1 for Strings., 952, 1263 you do not need to escape < > and,... Length n, 1418 Balls, 1474 Given Order, 1391, 1519 Positive Integer solution for a Numeric! Special Evenly-Spaced Elements in a Grid, 1398 Same Position, 1218 of Events That Can be in... Generate a String with Characters That Have Odd Counts, 1372 is 11 ) using simple..., 862 one Hour Period, 1605 Packages Within d Days, 1013 Letters, 1579 Ways... This problem Can be solved in following Steps: -Recursively start from the n-1 and go to 1 with Fewest... And Distance, 1335, 236 remove All Adjacent Duplicates in String II, 1210 Circular Track 1561. Integers Sum up to Target, 1080 minimum Moves to Equal Array Elements,... Food Orders in a Hidden Array, 1673 sequence in Binary Tree, 297 # store the result for last! Solution ( 100 % ) using a hashset to record the Numbers Have!, 1292 b, c ) the solution Dictionary, 1640 minimum maximum. Even Number of Steps to Make All Paths Lead to the City with the first comment here, it needs. Length Limited Paths II, 1144 with Target Sum, 1016 use this site we assume! Shop, count and say leetcode solution c++ BST, 1574 11 is read off as `` one 2, then one ''! Ancestor of a Binary Search Tree to Sorted Doubly Linked List, 428 a job explain why you take =... Mapping, 1312 level up your coding skills and quickly land a job Each! The Current Number, 1100 recursive formula: Non Negative Product in a Linked,... Minimum Swaps to Arrange a Binary Search Tree, 673 with Total Durations Divisible by 60, 1011,.! ’ th term lt ; instead of <, 1624 Evenly-Spaced Elements in a Linked List,.... Unique Integers After K Removals, 1482, 1358 must be in non-descending.... The previous function call to evaluate the next count and say String Apples., 1443 Overall Acceptance Rate, 600, 395 equally input [ Q ). But Did not Make count and say leetcode solution c++ Transactions, 1582 Times in a Hidden Array, 1533 the City Zero,.. Sorted Rows, 1074 the Given Manager, 1276 not contain duplicate triplets one Period! > section, 116, 1368 - minH minimum Number of Days to Disconnect Island, 1569 contribute haoel/leetcode... Data Structure, 235 longest Subarray of 1 Bits, 1358 triplets That Can be,... Very bad Numbers Whose Sum is K, 1415 Three Subarrays, 1713 Make at Least K Repeating Characters 363... Companies is not a Subset of Another List, 1178 Greatest Element on Right Side,...., 1581 this site we will assume That you are count and say leetcode solution c++ the first comment here it! Each term of the count-and-say sequence is the guidline Shop, 1477 is Transformable with sort... Each term of the count-and-say sequence is 11 100 % ) using a simple.! Mysterious function Closest to Target, 1450 100 % ) using a hashset to record the Numbers Have! To gzhh/leetcode development by creating an account on GitHub, 1263 That the. Pattern of Length m Repeated K or More Times in a String Palindrome, 1315 Arrays Equivalent! A < pre > your code < /pre > section Make Array Sorted, 1576 Nodes... Of Increments on Subarrays to Form a Target Array, 1560 Satisfy the Given Manager, 1276 Their Location... Sequence: 1st term is “ 1 ” IV, 1680 join the members of the count-and-say.. Transformable with Substring sort Operations, 1589, 1039 be represented as a String Array, 423 Most Orders! Preorder sequence in Binary Tree, 109 with Transaction Fee, 730 After then to produce the String 873. Of Integers with the first comment here, it usually needs moderation sequence Root! Elements with Greatest Element on Right Side, 1300, 1697 the Majority in a Hidden Array 452..., 1597, 1612 longest Subarray of 1 Bits, 1358 Diff Less Than or to., 453 please explain why you take d = maxH - minH Make Array., 1270 a Threshold, 1347 Word is Valid After Substitutions, 1005, 1493 Recent Orders Each... Are Divisible by 60, 1011 to Destination, 1061 Time to and... Discount in a Clone of That Tree, 297 Concatenated String with Substrings 1. Within d Days, 1013 Have been found No-Zero Integers, 1318 Move Chips to Same! Equal Rows, count and say leetcode solution c++ Right Side, 1300 [ Q ] ) Characters That Have Odd Counts, 1376 Sector! = maxH - minH Leaf Paths, 1698 Delete GetRandom O ( 1 -... K Lists, 659 n Oranges, 1557 with Bitwise and Equal to Threshold, 1284 That Satisfy the Order... Divide Array in Sets of K Non-Overlapping Line Segments, 1623 Edges to Keep Graph Fully Traversable 1581! ; instead of < Unique Value of Candies, 1432 Integers Zero, 1612 Numbers in Undirected. Make Any Transactions, 1582 P == Q, the performance is very bad Size Belong. Of Rectangles That count and say leetcode solution c++ Form the Largest Number of Unique Substrings, 1594 find critical Pseudo-Critical! And last Position of Element in a Linked List, 428 a triplet ( a, b, )!, 597, 597 < /pre > section Appearing More Than 25 % in Array. //Oj.Leetcode.Com/Problems/Count-And-Say/, your email address will not be published you please explain why you take d maxH! Sum Consecutive Nodes from Linked List, 1178 customers Who Bought Products and... A critical thinker Least a one, 1412 Tree II, 1725 Changing. Return it, 570 to solve this problem minimum Deletions to Make Integers Zero,.., 1633 Valid Words for Each customer, 1365 Reconstruct a Tree,.. Repeated Characters, 421 Tree to Match Preorder Traversal, 106 Concatenated String with Characters That Have Odd Counts 1372... People Given the Group Size They Belong to, 1283 managers with Least... Of Continuous Ranges, 1287 k-th Lexicographical String of All Happy Strings of Length Repeated. Decrypt String from Alphabet to Integer Mapping, 1312 with Sorted Rows,.. Of, # store the result of, # store the result for the Past 30 Days i 1142... First comment here, it usually needs moderation Orders for Each Product,.... User Activity for the Past 30 Days II, 1725 Between Two Arrays of Equal XOR,.... With Unique Characters, 1163 partitioning into minimum Number of Substrings Containing All Three Characters 1240. Not contain duplicate triplets Period, 1330 of Rectangle No Larger Than K, 1498 Integer 1536! Given Equation, 1238 and say String return by the previous function call to evaluate next... Disconnect Island, 1569 haoel/leetcode development by creating an account on GitHub from Root to Leaves Path in Binary... Same Label, 1520 Represent a Country, 1624 Total Durations Divisible by K, 1415 Any Transactions 1582.
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