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Problems

338 problems

Has videoPremium onlyReset
Array2,237String877Hash Table797Math691Dynamic Programming673Sorting508Greedy485Binary Search357Depth-First Search338Database308Bit Manipulation286Matrix279Tree264Breadth-First Search257Prefix Sum252All topics

338 results

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TitleSolutionAcceptDifficultyTopics
2316. Count Unreachable Pairs of Nodes in an Undirected GraphVideo
Solution49.9%Medium
Breadth-First Search, Depth-First Search +2· 4 companies
2322. Minimum Score After Removals on a TreeVideo
Solution76.2%Hard
Array, Bit Manipulation +2· 4 companies
2328. Number of Increasing Paths in a GridVideo
Solution57.4%Hard
Array, Breadth-First Search +6· 2 companies
2331. Evaluate Boolean Binary TreeVideo
Solution82.7%Easy
Binary Tree, Depth-First Search +1· 1 company
2359. Find Closest Node to Given Two NodesVideo
Solution53.0%Medium
Depth-First Search, Graph· 4 companies
2360. Longest Cycle in a GraphVideo
Solution51.1%Hard
Depth-First Search, Graph +1· 7 companies
2368. Reachable Nodes With RestrictionsVideo
Solution60.8%Medium
Array, Breadth-First Search +5· 2 companies
2378. Choose Edges to Maximize Score in a TreeVideoPremium
Solution57.1%Medium
Depth-First Search, Dynamic Programming +1· 1 company
2385. Amount of Time for Binary Tree to Be InfectedVideo
Solution65.8%Medium
Binary Tree, Breadth-First Search +3· 12 companies
2415. Reverse Odd Levels of Binary TreeVideo
Solution86.7%Medium
Binary Tree, Breadth-First Search +2· 3 companies
2440. Create Components With Same ValueVideo
Solution54.0%Hard
Array, Depth-First Search +3· 1 company
2445. Number of Nodes With Value OneVideoPremium
Solution66.3%Medium
Binary Tree, Breadth-First Search +2· 1 company
2458. Height of Binary Tree After Subtree Removal QueriesVideo
Solution55.0%Hard
Array, Binary Tree +3· 3 companies
2467. Most Profitable Path in a TreeVideo
Solution67.3%Medium
Array, Breadth-First Search +3· 6 companies
2476. Closest Nodes Queries in a Binary Search TreeVideo
Solution44.9%Medium
Array, Binary Search +4· 1 company
2477. Minimum Fuel Cost to Report to the CapitalVideo
Solution65.0%Medium
Breadth-First Search, Depth-First Search +2· 5 companies
2479. Maximum XOR of Two Non-Overlapping SubtreesPremium
Solution51.3%Hard
Depth-First Search, Graph +2· 2 companies
2492. Minimum Score of a Path Between Two CitiesVideo
Solution66.2%Medium
Breadth-First Search, Depth-First Search +2· 5 companies
2538. Difference Between Maximum and Minimum Price SumVideo
Solution34.5%Hard
Array, Depth-First Search +2· 2 companies
2556. Disconnect Path in a Binary Matrix by at Most One FlipVideo
Solution27.8%Medium
Array, Breadth-First Search +3· 1 company
2581. Count Number of Possible Root NodesVideo
Solution49.3%Hard
Array, Depth-First Search +3
2596. Check Knight Tour ConfigurationVideo
Solution62.0%Medium
Array, Breadth-First Search +3· 3 companies
2641. Cousins in Binary Tree IIVideo
Solution75.8%Medium
Binary Tree, Breadth-First Search +3· 2 companies
2646. Minimize the Total Price of the TripsVideo
Solution48.5%Hard
Array, Depth-First Search +3
2658. Maximum Number of Fish in a GridVideo
Solution70.5%Medium
Array, Breadth-First Search +3· 4 companies
2685. Count the Number of Complete ComponentsVideo
Solution80.8%Medium
Breadth-First Search, Depth-First Search +2· 4 companies
2689. Extract Kth Character From The Rope TreeVideoPremium
Solution73.4%Easy
Binary Tree, Depth-First Search +1· 1 company
2764. Is Array a Preorder of Some ‌Binary TreeVideoPremium
Solution67.8%Medium
Binary Tree, Depth-First Search +2
2773. Height of Special Binary TreeVideoPremium
Solution75.2%Medium
Binary Tree, Breadth-First Search +2
2791. Count Paths That Can Form a Palindrome in a TreeVideo
Solution52.6%Hard
Bit Manipulation, Bitmask +3· 4 companies
2792. Count Nodes That Are Great EnoughVideoPremium
Solution57.1%Hard
Binary Tree, Depth-First Search +2
2852. Sum of Remoteness of All CellsVideoPremium
Solution70.8%Medium
Array, Breadth-First Search +4· 1 company
2858. Minimum Edge Reversals So Every Node Is ReachableVideo
Solution60.2%Hard
Breadth-First Search, Depth-First Search +2· 11 companies
2867. Count Valid Paths in a TreeVideo
Solution36.2%Hard
Depth-First Search, Dynamic Programming +3· 1 company
2872. Maximum Number of K-Divisible ComponentsVideo
Solution74.1%Hard
Depth-First Search, Tree· 4 companies
2920. Maximum Points After Collecting Coins From All NodesVideo
Solution36.6%Hard
Array, Bit Manipulation +3· 1 company
2925. Maximum Score After Applying Operations on a TreeVideo
Solution47.2%Medium
Depth-First Search, Dynamic Programming +1· 1 company
2973. Find Number of Coins to Place in Tree NodesVideo
Solution37.4%Hard
Depth-First Search, Dynamic Programming +3· 1 company
3004. Maximum Subtree of the Same ColorVideoPremium
Solution59.2%Medium
Array, Depth-First Search +2· 2 companies
3067. Count Pairs of Connectable Servers in a Weighted Tree NetworkVideo
Solution55.6%Medium
Array, Depth-First Search +1· 2 companies
3123. Find Edges in Shortest PathsVideo
Solution47.0%Hard
Breadth-First Search, Depth-First Search +3· 2 companies
3157. Find the Level of Tree with Minimum SumVideoPremium
Solution69.6%Medium
Binary Tree, Breadth-First Search +2· 1 company
3203. Find Minimum Diameter After Merging Two TreesVideo
Solution57.1%Hard
Breadth-First Search, Depth-First Search +2· 4 companies
3235. Check if the Rectangle Corner Is ReachableVideo
Solution24.4%Hard
Array, Breadth-First Search +4· 2 companies
3241. Time Taken to Mark All NodesVideo
Solution29.5%Hard
Depth-First Search, Dynamic Programming +2
3249. Count the Number of Good NodesVideo
Solution55.0%Medium
Depth-First Search, Tree
3310. Remove Methods From ProjectVideo
Solution70.2%Medium
Breadth-First Search, Depth-First Search +1· 1 company
3313. Find the Last Marked Nodes in TreeVideoPremium
Solution57.1%Hard
Depth-First Search, Tree· 1 company
3319. K-th Largest Perfect Subtree Size in Binary TreeVideo
Solution61.6%Medium
Binary Tree, Depth-First Search +2· 1 company
3327. Check if DFS Strings Are PalindromesVideo
Solution20.9%Hard
Array, Depth-First Search +4· 1 company
Showing 251–300 of 338