Skip to content

For employers Sign in

Make and follow sheets.Sign in

Problems

335 problems

Has video Premium only Reset

Array2,209 String870 Hash Table786 Math682 Dynamic Programming666 Sorting504 Greedy480 Binary Search352 Depth-First Search335 Database303 Bit Manipulation283 Matrix278 Tree261 Breadth-First Search255 Two Pointers249 All topics

With video · 335 results

Sign in to see which of these you have solved.Sign in

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

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

3331. Find Subtree Sizes After ChangesVideo

Solution52.8%Medium

Array, Depth-First Search +3

Showing 251–300 of 335