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Question Free? Status Difficulty Topics Similar Questions
2101. Detonate the Maximum Bombs  🔗  📝
🆓 ⭐️⭐️
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Math  🔗
Depth-First Search  🔗
Breadth-First Search  🔗
Graph  🔗
Geometry  🔗
529. Minesweeper  🔗  📝
547. Number of Provinces  🔗  📝
695. Max Area of Island  🔗  📝
994. Rotting Oranges  🔗  📝
2102. Sequentially Ordinal Rank Tracker  🔗  📝
🆓 ⭐️⭐️⭐️
Design  🔗
Heap (Priority Queue)  🔗
Data Stream  🔗
Ordered Set  🔗
295. Find Median from Data Stream  🔗  📝
703. Kth Largest Element in a Stream  🔗  📝
1825. Finding MK Average  🔗  📝
2103. Rings and Rods  🔗  📝
🆓 ⭐️
Hash Table  🔗
String  🔗
1941. Check if All Characters Have Equal Number of Occurrences  🔗  📝
2104. Sum of Subarray Ranges  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Stack  🔗
Monotonic Stack  🔗
496. Next Greater Element I  🔗  📝
907. Sum of Subarray Minimums  🔗  📝
1759. Count Number of Homogenous Substrings  🔗  📝
1944. Number of Visible People in a Queue  🔗  📝
2281. Sum of Total Strength of Wizards  🔗  📝
2105. Watering Plants II  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Two Pointers  🔗
Simulation  🔗
2079. Watering Plants  🔗  📝
2106. Maximum Fruits Harvested After at Most K Steps  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Binary Search  🔗
Sliding Window  🔗
Prefix Sum  🔗
1383. Maximum Performance of a Team  🔗  📝
2107. Number of Unique Flavors After Sharing K Candies  🔗  📝
💰 ⭐️⭐️
Array  🔗
Hash Table  🔗
Sliding Window  🔗
546. Remove Boxes  🔗  📝
992. Subarrays with K Different Integers  🔗  📝
2108. Find First Palindromic String in the Array  🔗  📝
🆓 ⭐️
Array  🔗
Two Pointers  🔗
String  🔗
125. Valid Palindrome  🔗  📝
2109. Adding Spaces to a String  🔗  📝
🆓 ⭐️⭐️
Array  🔗
String  🔗
Simulation  🔗
2110. Number of Smooth Descent Periods of a Stock  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Math  🔗
Dynamic Programming  🔗
713. Subarray Product Less Than K  🔗  📝
1063. Number of Valid Subarrays  🔗  📝
2348. Number of Zero-Filled Subarrays  🔗  📝
2111. Minimum Operations to Make the Array K-Increasing  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Binary Search  🔗
300. Longest Increasing Subsequence  🔗  📝
801. Minimum Swaps To Make Sequences Increasing  🔗  📝
2112. The Airport With the Most Traffic  🔗  📝
💰 ⭐️⭐️
Database  🔗
2113. Elements in Array After Removing and Replacing Elements  🔗  📝
💰 ⭐️⭐️
Array  🔗
2114. Maximum Number of Words Found in Sentences  🔗  📝
🆓 ⭐️
Array  🔗
String  🔗
2047. Number of Valid Words in a Sentence  🔗  📝
2115. Find All Possible Recipes from Given Supplies  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
String  🔗
Graph  🔗
Topological Sort  🔗
210. Course Schedule II  🔗  📝
1711. Count Good Meals  🔗  📝
2116. Check if a Parentheses String Can Be Valid  🔗  📝
🆓 ⭐️⭐️
String  🔗
Stack  🔗
Greedy  🔗
20. Valid Parentheses  🔗  📝
22. Generate Parentheses  🔗  📝
678. Valid Parenthesis String  🔗  📝
1249. Minimum Remove to Make Valid Parentheses  🔗  📝
2267.Check if There Is a Valid Parentheses String Path  🔗  📝
2117. Abbreviating the Product of a Range  🔗  📝
🆓 ⭐️⭐️⭐️
Math  🔗
172. Factorial Trailing Zeroes  🔗  📝
2245. Maximum Trailing Zeros in a Cornered Path  🔗  📝
2118. Build the Equation  🔗  📝
💰 ⭐️⭐️⭐️
Database  🔗
2119. A Number After a Double Reversal  🔗  📝
🆓 ⭐️
Math  🔗
7. Reverse Integer  🔗  📝
190. Reverse Bits  🔗  📝
2120. Execution of All Suffix Instructions Staying in a Grid  🔗  📝
🆓 ⭐️⭐️
String  🔗
Simulation  🔗
576. Out of Boundary Paths  🔗  📝
657. Robot Return to Origin  🔗  📝
2121. Intervals Between Identical Elements  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
Prefix Sum  🔗
523. Continuous Subarray Sum  🔗  📝
2122. Recover the Original Array  🔗  📝
🆓 👀 ⭐️⭐️⭐️
Array  🔗
Hash Table  🔗
Sorting  🔗
Enumeration  🔗
1982. Find Array Given Subset Sums  🔗  📝
2007. Find Original Array From Doubled Array  🔗  📝
2123. Minimum Operations to Remove Adjacent Ones in Matrix  🔗  📝
💰 ⭐️⭐️⭐️
Array  🔗
Graph  🔗
Matrix  🔗
73. Set Matrix Zeroes  🔗  📝
542. 01 Matrix  🔗  📝
1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix  🔗  📝
2128. Remove All Ones With Row and Column Flips  🔗  📝
2124. Check if All A's Appears Before All B's  🔗  📝
🆓 ⭐️
String  🔗
1653. Minimum Deletions to Make String Balanced  🔗  📝
1752. Check if Array Is Sorted and Rotated  🔗  📝
2042. Check if Numbers Are Ascending in a Sentence  🔗  📝
2125. Number of Laser Beams in a Bank  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Math  🔗
String  🔗
Matrix  🔗
73. Set Matrix Zeroes  🔗  📝
2126. Destroying Asteroids  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Greedy  🔗
Sorting  🔗
735. Asteroid Collision  🔗  📝
2127. Maximum Employees to Be Invited to a Meeting  🔗  📝
🆓 ⭐️⭐️⭐️
Depth-First Search  🔗
Graph  🔗
Topological Sort  🔗
684. Redundant Connection  🔗  📝
2050. Parallel Courses III  🔗  📝
2076. Process Restricted Friend Requests  🔗  📝
2128. Remove All Ones With Row and Column Flips  🔗  📝
💰 ⭐️⭐️
Array  🔗
Math  🔗
Bit Manipulation  🔗
Matrix  🔗
861. Score After Flipping Matrix  🔗  📝
1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix  🔗  📝
2123. Minimum Operations to Remove Adjacent Ones in Matrix  🔗  📝
2174. Remove All Ones With Row and Column Flips II  🔗  📝
2129. Capitalize the Title  🔗  📝
🆓 ⭐️
String  🔗
520. Detect Capital  🔗  📝
709. To Lower Case  🔗  📝
2130. Maximum Twin Sum of a Linked List  🔗  📝
🆓 ⭐️⭐️
Linked List  🔗
Two Pointers  🔗
Stack  🔗
206. Reverse Linked List  🔗  📝
234. Palindrome Linked List  🔗  📝
876. Middle of the Linked List  🔗  📝
2131. Longest Palindrome by Concatenating Two Letter Words  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
String  🔗
Greedy  🔗
Counting  🔗
336. Palindrome Pairs  🔗  📝
409. Longest Palindrome  🔗  📝
2132. Stamping the Grid  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Greedy  🔗
Matrix  🔗
Prefix Sum  🔗
221. Maximal Square  🔗  📝
361. Bomb Enemy  🔗  📝
1314. Matrix Block Sum  🔗  📝
2133. Check if Every Row and Column Contains All Numbers  🔗  📝
🆓 ⭐️
Array  🔗
Hash Table  🔗
Matrix  🔗
36. Valid Sudoku  🔗  📝
1572. Matrix Diagonal Sum  🔗  📝
2134. Minimum Swaps to Group All 1's Together II  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Sliding Window  🔗
1151. Minimum Swaps to Group All 1's Together  🔗  📝
2135. Count Words Obtained After Adding a Letter  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
String  🔗
Bit Manipulation  🔗
Sorting  🔗
1554. Strings Differ by One Character  🔗  📝
1638. Count Substrings That Differ by One Character  🔗  📝
1717. Maximum Score From Removing Substrings  🔗  📝
2136. Earliest Possible Day of Full Bloom  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Greedy  🔗
Sorting  🔗
1482. Minimum Number of Days to Make m Bouquets  🔗  📝
2137. Pour Water Between Buckets to Make Water Levels Equal  🔗  📝
💰 ⭐️⭐️
Array  🔗
Binary Search  🔗
33. Search in Rotated Sorted Array  🔗  📝
162. Find Peak Element  🔗  📝
453. Minimum Moves to Equal Array Elements  🔗  📝
2138. Divide a String Into Groups of Size k  🔗  📝
🆓 ⭐️
String  🔗
Simulation  🔗
68. Text Justification  🔗  📝
830. Positions of Large Groups  🔗  📝
2139. Minimum Moves to Reach Target Score  🔗  📝
🆓 ⭐️⭐️
Math  🔗
Greedy  🔗
1342. Number of Steps to Reduce a Number to Zero  🔗  📝
1404. Number of Steps to Reduce a Number in Binary Representation to One  🔗  📝
2140. Solving Questions With Brainpower  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Dynamic Programming  🔗
198. House Robber  🔗  📝
403. Frog Jump  🔗  📝
2141. Maximum Running Time of N Computers  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Binary Search  🔗
Greedy  🔗
Sorting  🔗
453. Minimum Moves to Equal Array Elements  🔗  📝
1648. Sell Diminishing-Valued Colored Balls  🔗  📝
2071. Maximum Number of Tasks You Can Assign  🔗  📝
2187. Minimum Time to Complete Trips  🔗  📝
2335. Minimum Amount of Time to Fill Cups  🔗  📝
2142. The Number of Passengers in Each Bus I  🔗  📝
💰 ⭐️⭐️
Database  🔗
2143. Choose Numbers From Two Arrays in Range  🔗  📝
💰 ⭐️⭐️⭐️
Array  🔗
Dynamic Programming  🔗
349. Intersection of Two Arrays  🔗  📝
350. Intersection of Two Arrays II  🔗  📝
1874. Minimize Product Sum of Two Arrays  🔗  📝
1879. Minimum XOR Sum of Two Arrays  🔗  📝
2144. Minimum Cost of Buying Candies With Discount  🔗  📝
🆓 ⭐️
Array  🔗
Greedy  🔗
Sorting  🔗
561. Array Partition  🔗  📝
1200. Minimum Absolute Difference  🔗  📝
2145. Count the Hidden Sequences  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Prefix Sum  🔗
2146. K Highest Ranked Items Within a Price Range  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Breadth-First Search  🔗
Sorting  🔗
Heap (Priority Queue)  🔗
Matrix  🔗
215. Kth Largest Element in an Array  🔗  📝
1162. As Far from Land as Possible  🔗  📝
2147. Number of Ways to Divide a Long Corridor  🔗  📝
🆓 ⭐️⭐️⭐️
Math  🔗
String  🔗
Dynamic Programming  🔗
639. Decode Ways II  🔗  📝
1547. Minimum Cost to Cut a Stick  🔗  📝
1712. Ways to Split Array Into Three Subarrays  🔗  📝
2148. Count Elements With Strictly Smaller and Greater Elements   🔗  📝
🆓 ⭐️
Array  🔗
Sorting  🔗
744. Find Smallest Letter Greater Than Target  🔗  📝
2149. Rearrange Array Elements by Sign  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Two Pointers  🔗
Simulation  🔗
376. Wiggle Subsequence  🔗  📝
922. Sort Array By Parity II  🔗  📝
2161. Partition Array According to Given Pivot  🔗  📝
2231. Largest Number After Digit Swaps by Parity  🔗  📝
2150. Find All Lonely Numbers in the Array  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
Counting  🔗
1838. Frequency of the Most Frequent Element  🔗  📝
2151. Maximum Good People Based on Statements  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Backtracking  🔗
Bit Manipulation  🔗
Enumeration  🔗
1255. Maximum Score Words Formed by Letters  🔗  📝
2152. Minimum Number of Lines to Cover Points  🔗  📝
💰 ⭐️⭐️
Array  🔗
Hash Table  🔗
Math  🔗
Dynamic Programming  🔗
Backtracking  🔗
Bit Manipulation  🔗
Geometry  🔗
Bitmask  🔗
149. Max Points on a Line  🔗  📝
1584. Min Cost to Connect All Points  🔗  📝
2280. Minimum Lines to Represent a Line Chart  🔗  📝
2153. The Number of Passengers in Each Bus II  🔗  📝
💰 ⭐️⭐️⭐️
Database  🔗
2154. Keep Multiplying Found Values by Two  🔗  📝
🆓 ⭐️
Array  🔗
Hash Table  🔗
Sorting  🔗
Simulation  🔗
747. Largest Number At Least Twice of Others  🔗  📝
1346. Check If N and Its Double Exist  🔗  📝
2155. All Divisions With the Highest Score of a Binary Array  🔗  📝
🆓 ⭐️⭐️
Array  🔗
474. Ones and Zeroes  🔗  📝
487. Max Consecutive Ones II  🔗  📝
561. Array Partition  🔗  📝
1296. Divide Array in Sets of K Consecutive Numbers  🔗  📝
2031. Count Subarrays With More Ones Than Zeros  🔗  📝
2156. Find Substring With Given Hash Value  🔗  📝
🆓 ⭐️⭐️⭐️
String  🔗
Sliding Window  🔗
Rolling Hash  🔗
Hash Function  🔗
1316. Distinct Echo Substrings  🔗  📝
2157. Groups of Strings  🔗  📝
🆓 ⭐️⭐️⭐️
String  🔗
Bit Manipulation  🔗
Union Find  🔗
126. Word Ladder II  🔗  📝
839. Similar String Groups  🔗  📝
952. Largest Component Size by Common Factor  🔗  📝
2158. Amount of New Area Painted Each Day  🔗  📝
💰 ⭐️⭐️⭐️
Array  🔗
Segment Tree  🔗
Ordered Set  🔗
56. Merge Intervals  🔗  📝
1943. Describe the Painting  🔗  📝
2015. Average Height of Buildings in Each Segment  🔗  📝
2159. Order Two Columns Independently  🔗  📝
💰 ⭐️⭐️
Database  🔗
2160. Minimum Sum of Four Digit Number After Splitting Digits  🔗  📝
🆓 ⭐️
Math  🔗
Greedy  🔗
Sorting  🔗
258. Add Digits  🔗  📝
2161. Partition Array According to Given Pivot  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Two Pointers  🔗
Simulation  🔗
86. Partition List  🔗  📝
2149. Rearrange Array Elements by Sign  🔗  📝
2162. Minimum Cost to Set Cooking Time  🔗  📝
🆓 ⭐️⭐️
Math  🔗
Enumeration  🔗
539. Minimum Time Difference  🔗  📝
2163. Minimum Difference in Sums After Removal of Elements  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Dynamic Programming  🔗
Heap (Priority Queue)  🔗
238. Product of Array Except Self  🔗  📝
2099. Find Subsequence of Length K With the Largest Sum  🔗  📝
2164. Sort Even and Odd Indices Independently  🔗  📝
🆓 ⭐️
Array  🔗
Sorting  🔗
905. Sort Array By Parity  🔗  📝
922. Sort Array By Parity II  🔗  📝
2165. Smallest Value of the Rearranged Number  🔗  📝
🆓 ⭐️⭐️
Math  🔗
Sorting  🔗
179. Largest Number  🔗  📝
2166. Design Bitset  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
Design  🔗
1396. Design Underground System  🔗  📝
2167. Minimum Time to Remove All Cars Containing Illegal Goods  🔗  📝
🆓 ⭐️⭐️⭐️
String  🔗
Dynamic Programming  🔗
995. Minimum Number of K Consecutive Bit Flips  🔗  📝
2168. Unique Substrings With Equal Digit Frequency  🔗  📝
💰 ⭐️⭐️
Hash Table  🔗
String  🔗
Rolling Hash  🔗
Counting  🔗
Hash Function  🔗
2067. Number of Equal Count Substrings  🔗  📝
2083. Substrings That Begin and End With the Same Letter  🔗  📝
2169. Count Operations to Obtain Zero  🔗  📝
🆓 ⭐️
Math  🔗
Simulation  🔗
1342. Number of Steps to Reduce a Number to Zero  🔗  📝
2170. Minimum Operations to Make the Array Alternating  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
Greedy  🔗
Counting  🔗
1888. Minimum Number of Flips to Make the Binary String Alternating  🔗  📝
2216. Minimum Deletions to Make Array Beautiful  🔗  📝
2171. Removing Minimum Number of Magic Beans  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Sorting  🔗
Prefix Sum  🔗
462. Minimum Moves to Equal Array Elements II  🔗  📝
1658. Minimum Operations to Reduce X to Zero  🔗  📝
2172. Maximum AND Sum of Array  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Dynamic Programming  🔗
Bit Manipulation  🔗
Bitmask  🔗
1879. Minimum XOR Sum of Two Arrays  🔗  📝
2173. Longest Winning Streak  🔗  📝
💰 ⭐️⭐️⭐️
Database  🔗
2174. Remove All Ones With Row and Column Flips II  🔗  📝
💰 ⭐️⭐️
Array  🔗
Bit Manipulation  🔗
Breadth-First Search  🔗
Matrix  🔗
73. Set Matrix Zeroes  🔗  📝
1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix  🔗  📝
2128. Remove All Ones With Row and Column Flips  🔗  📝
2175. The Change in Global Rankings  🔗  📝
💰 ⭐️⭐️
Database  🔗
2176. Count Equal and Divisible Pairs in an Array  🔗  📝
🆓 ⭐️
Array  🔗
2006. Count Number of Pairs With Absolute Difference K  🔗  📝
2364. Count Number of Bad Pairs  🔗  📝
2177. Find Three Consecutive Integers That Sum to a Given Number  🔗  📝
🆓 ⭐️⭐️
Math  🔗
Simulation  🔗
128. Longest Consecutive Sequence  🔗  📝
2240. Number of Ways to Buy Pens and Pencils  🔗  📝
2178. Maximum Split of Positive Even Integers  🔗  📝
🆓 ⭐️⭐️
Math  🔗
Greedy  🔗
2179. Count Good Triplets in an Array  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Binary Search  🔗
Divide and Conquer  🔗
Binary Indexed Tree  🔗
Segment Tree  🔗
Merge Sort  🔗
Ordered Set  🔗
315. Count of Smaller Numbers After Self  🔗  📝
334. Increasing Triplet Subsequence  🔗  📝
1649. Create Sorted Array through Instructions  🔗  📝
2180. Count Integers With Even Digit Sum  🔗  📝
🆓 ⭐️
Math  🔗
Simulation  🔗
1945. Sum of Digits of String After Convert  🔗  📝
2240. Number of Ways to Buy Pens and Pencils  🔗  📝
2310. Sum of Numbers With Units Digit K  🔗  📝
2181. Merge Nodes in Between Zeros  🔗  📝
🆓 ⭐️⭐️
Linked List  🔗
Simulation  🔗
817. Linked List Components  🔗  📝
2182. Construct String With Repeat Limit  🔗  📝
🆓 ⭐️⭐️
String  🔗
Greedy  🔗
Heap (Priority Queue)  🔗
Counting  🔗
358. Rearrange String k Distance Apart  🔗  📝
2183. Count Array Pairs Divisible by K  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Math  🔗
Number Theory  🔗
1497. Check If Array Pairs Are Divisible by k  🔗  📝
2198. Number of Single Divisor Triplets  🔗  📝
2184. Number of Ways to Build Sturdy Brick Wall  🔗  📝
💰 ⭐️⭐️
Array  🔗
Dynamic Programming  🔗
Bit Manipulation  🔗
Bitmask  🔗
554. Brick Wall  🔗  📝
803. Bricks Falling When Hit  🔗  📝
2185. Counting Words With a Given Prefix  🔗  📝
🆓 ⭐️
Array  🔗
String  🔗
1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence  🔗  📝
2255. Count Prefixes of a Given String  🔗  📝
2186. Minimum Number of Steps to Make Two Strings Anagram II  🔗  📝
🆓 ⭐️⭐️
Hash Table  🔗
String  🔗
Counting  🔗
1347. Minimum Number of Steps to Make Two Strings Anagram  🔗  📝
2187. Minimum Time to Complete Trips  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Binary Search  🔗
1870. Minimum Speed to Arrive on Time  🔗  📝
2064. Minimized Maximum of Products Distributed to Any Store  🔗  📝
2141. Maximum Running Time of N Computers  🔗  📝
2226. Maximum Candies Allocated to K Children  🔗  📝
2188. Minimum Time to Finish the Race  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Dynamic Programming  🔗
1883. Minimum Skips to Arrive at Meeting On Time  🔗  📝
2189. Number of Ways to Build House of Cards  🔗  📝
💰 ⭐️⭐️
Math  🔗
Dynamic Programming  🔗
799. Champagne Tower  🔗  📝
2190. Most Frequent Number Following Key In an Array  🔗  📝
🆓 ⭐️
Array  🔗
Hash Table  🔗
Counting  🔗
1636. Sort Array by Increasing Frequency  🔗  📝
2191. Sort the Jumbled Numbers  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Sorting  🔗
677. Map Sum Pairs  🔗  📝
2192. All Ancestors of a Node in a Directed Acyclic Graph  🔗  📝
🆓 ⭐️⭐️
Depth-First Search  🔗
Breadth-First Search  🔗
Graph  🔗
Topological Sort  🔗
1786. Number of Restricted Paths From First to Last Node  🔗  📝
2193. Minimum Number of Moves to Make Palindrome  🔗  📝
🆓 ⭐️⭐️⭐️
Two Pointers  🔗
String  🔗
Greedy  🔗
Binary Indexed Tree  🔗
1312. Minimum Insertion Steps to Make a String Palindrome  🔗  📝
2194. Cells in a Range on an Excel Sheet  🔗  📝
🆓 ⭐️
String  🔗
168. Excel Sheet Column Title  🔗  📝
171. Excel Sheet Column Number  🔗  📝
1030. Matrix Cells in Distance Order  🔗  📝
2195. Append K Integers With Minimal Sum  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Math  🔗
Greedy  🔗
Sorting  🔗
402. Remove K Digits  🔗  📝
448. Find All Numbers Disappeared in an Array  🔗  📝
1539. Kth Missing Positive Number  🔗  📝
2196. Create Binary Tree From Descriptions  🔗  📝
🆓 ⭐️⭐️
Array  🔗
Hash Table  🔗
Tree  🔗
Depth-First Search  🔗
Breadth-First Search  🔗
Binary Tree  🔗
109. Convert Sorted List to Binary Search Tree  🔗  📝
1719. Number Of Ways To Reconstruct A Tree  🔗  📝
2197. Replace Non-Coprime Numbers in Array  🔗  📝
🆓 ⭐️⭐️⭐️
Array  🔗
Math  🔗
Stack  🔗
Number Theory  🔗
1209. Remove All Adjacent Duplicates in String II  🔗  📝
2001. Number of Pairs of Interchangeable Rectangles  🔗  📝
2198. Number of Single Divisor Triplets  🔗  📝
💰 ⭐️⭐️
Math  🔗
2183. Count Array Pairs Divisible by K  🔗  📝
2199. Finding the Topic of Each Post  🔗  📝
💰 ⭐️⭐️⭐️
Database  🔗
1484. Group Sold Products By The Date  🔗  📝
2200. Find All K-Distant Indices in an Array  🔗  📝
🆓 ⭐️
Array  🔗
1. Two Sum  🔗  📝
243. Shortest Word Distance  🔗  📝