Graph

Biconnected Component

• 1192. Critical Connections in a Network

Eulerian Circuit

• 2097. Valid Arrangement of Pairs
• 753. Cracking the Safe
• 332. Reconstruct Itinerary

Graph

• 3493. Properties Graph
• 3481. Apply Substitutions
• 3435. Frequencies of Shortest Supersequences
• 3419. Minimize the Maximum Edge Weight of Graph
• 3387. Maximize Amount After Two Days of Conversions
• 3385. Minimum Time to Break Locks II
• 3383. Minimum Runes to Add to Cast Spell
• 3377. Digit Operations to Make Two Integers Equal
• 3342. Find Minimum Time to Reach Last Room II
• 3341. Find Minimum Time to Reach Last Room I
• 3311. Construct 2D Grid Matching Graph Layout
• 3310. Remove Methods From Project
• 3286. Find a Safe Walk Through a Grid
• 3244. Shortest Distance After Road Addition Queries II
• 3243. Shortest Distance After Road Addition Queries I
• 3241. Time Taken to Mark All Nodes
• 3203. Find Minimum Diameter After Merging Two Trees
• 3123. Find Edges in Shortest Paths
• 3112. Minimum Time to Visit Disappearing Nodes
• 3108. Minimum Cost Walk in Weighted Graph
• 3017. Count the Number of Houses at a Certain Distance II
• 3015. Count the Number of Houses at a Certain Distance I
• 2977. Minimum Cost to Convert String II
• 2976. Minimum Cost to Convert String I
• 2959. Number of Possible Sets of Closing Branches
• 2924. Find Champion II
• 2876. Count Visited Nodes in a Directed Graph
• 2858. Minimum Edge Reversals So Every Node Is Reachable
• 2846. Minimum Edge Weight Equilibrium Queries in a Tree
• 2737. Find the Closest Marked Node
• 2714. Find Shortest Path with K Hops
• 2699. Modify Graph Edge Weights
• 2685. Count the Number of Complete Components
• 2662. Minimum Cost of a Path With Special Roads
• 2646. Minimize the Total Price of the Trips
• 2642. Design Graph With Shortest Path Calculator
• 2608. Shortest Cycle in a Graph
• 2603. Collect Coins in a Tree
• 2577. Minimum Time to Visit a Cell In a Grid
• 2508. Add Edges to Make Degrees of All Nodes Even
• 2497. Maximum Star Sum of a Graph
• 2493. Divide Nodes Into the Maximum Number of Groups
• 2492. Minimum Score of a Path Between Two Cities
• 2479. Maximum XOR of Two Non-Overlapping Subtrees
• 2477. Minimum Fuel Cost to Report to the Capital
• 2473. Minimum Cost to Buy Apples
• 2467. Most Profitable Path in a Tree
• 2421. Number of Good Paths
• 2392. Build a Matrix With Conditions
• 2374. Node With Highest Edge Score
• 2371. Minimize Maximum Value in a Grid
• 2368. Reachable Nodes With Restrictions
• 2360. Longest Cycle in a Graph
• 2359. Find Closest Node to Given Two Nodes
• 2328. Number of Increasing Paths in a Grid
• 2316. Count Unreachable Pairs of Nodes in an Undirected Graph
• 2307. Check for Contradictions in Equations
• 2297. Jump Game VIII
• 2290. Minimum Obstacle Removal to Reach Corner
• 2285. Maximum Total Importance of Roads
• 2247. Maximum Cost of Trip With K Highways
• 2246. Longest Path With Different Adjacent Characters
• 2242. Maximum Score of a Node Sequence
• 2204. Distance to a Cycle in Undirected Graph
• 2203. Minimum Weighted Subgraph With the Required Paths
• 2192. All Ancestors of a Node in a Directed Acyclic Graph
• 2127. Maximum Employees to Be Invited to a Meeting
• 2123. Minimum Operations to Remove Adjacent Ones in Matrix
• 2115. Find All Possible Recipes from Given Supplies
• 2101. Detonate the Maximum Bombs
• 2097. Valid Arrangement of Pairs
• 2093. Minimum Cost to Reach City With Discounts
• 2092. Find All People With Secret
• 2077. Paths in Maze That Lead to Same Room
• 2076. Process Restricted Friend Requests
• 2065. Maximum Path Quality of a Graph
• 2050. Parallel Courses III
• 2045. Second Minimum Time to Reach Destination
• 2039. The Time When the Network Becomes Idle
• 1976. Number of Ways to Arrive at Destination
• 1971. Find if Path Exists in Graph
• 1928. Minimum Cost to Reach Destination in Time
• 1916. Count Ways to Build Rooms in an Ant Colony
• 1857. Largest Color Value in a Directed Graph
• 1820. Maximum Number of Accepted Invitations
• 1810. Minimum Path Cost in a Hidden Grid
• 1791. Find Center of Star Graph
• 1786. Number of Restricted Paths From First to Last Node
• 1782. Count Pairs Of Nodes
• 1761. Minimum Degree of a Connected Trio in a Graph
• 1728. Cat and Mouse II
• 1724. Checking Existence of Edge Length Limited Paths II
• 1719. Number Of Ways To Reconstruct A Tree
• 1697. Checking Existence of Edge Length Limited Paths
• 1632. Rank Transform of a Matrix
• 1615. Maximal Network Rank
• 1591. Strange Printer II
• 1584. Min Cost to Connect All Points
• 1579. Remove Max Number of Edges to Keep Graph Fully Traversable
• 1557. Minimum Number of Vertices to Reach All Nodes
• 1548. The Most Similar Path in a Graph
• 1514. Path with Maximum Probability
• 1494. Parallel Courses II
• 1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree
• 1466. Reorder Routes to Make All Paths Lead to the City Zero
• 1462. Course Schedule IV
• 1377. Frog Position After T Seconds
• 1368. Minimum Cost to Make at Least One Valid Path in a Grid
• 1361. Validate Binary Tree Nodes
• 1334. Find the City With the Smallest Number of Neighbors at a Threshold Distance
• 1319. Number of Operations to Make Network Connected
• 1311. Get Watched Videos by Your Friends
• 1298. Maximum Candies You Can Get from Boxes
• 1245. Tree Diameter
• 1203. Sort Items by Groups Respecting Dependencies
• 1192. Critical Connections in a Network
• 1168. Optimize Water Distribution in a Village
• 1136. Parallel Courses
• 1135. Connecting Cities With Minimum Cost
• 1129. Shortest Path with Alternating Colors
• 1059. All Paths from Source Lead to Destination
• 1042. Flower Planting With No Adjacent
• 997. Find the Town Judge
• 990. Satisfiability of Equality Equations
• 947. Most Stones Removed with Same Row or Column
• 928. Minimize Malware Spread II
• 924. Minimize Malware Spread
• 913. Cat and Mouse
• 886. Possible Bipartition
• 882. Reachable Nodes In Subdivided Graph
• 851. Loud and Rich
• 847. Shortest Path Visiting All Nodes
• 841. Keys and Rooms
• 834. Sum of Distances in Tree
• 802. Find Eventual Safe States
• 797. All Paths From Source to Target
• 787. Cheapest Flights Within K Stops
• 785. Is Graph Bipartite?
• 765. Couples Holding Hands
• 753. Cracking the Safe
• 743. Network Delay Time
• 685. Redundant Connection II
• 684. Redundant Connection
• 631. Design Excel Sum Formula
• 547. Number of Provinces
• 505. The Maze II
• 499. The Maze III
• 444. Sequence Reconstruction
• 399. Evaluate Division
• 332. Reconstruct Itinerary
• 329. Longest Increasing Path in a Matrix
• 323. Number of Connected Components in an Undirected Graph
• 310. Minimum Height Trees
• 277. Find the Celebrity
• 269. Alien Dictionary
• 261. Graph Valid Tree
• 210. Course Schedule II
• 207. Course Schedule
• 133. Clone Graph

Minimum Spanning Tree

• 1724. Checking Existence of Edge Length Limited Paths II
• 1584. Min Cost to Connect All Points
• 1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree
• 1168. Optimize Water Distribution in a Village
• 1135. Connecting Cities With Minimum Cost

Shortest Path

• 3419. Minimize the Maximum Edge Weight of Graph
• 3377. Digit Operations to Make Two Integers Equal
• 3342. Find Minimum Time to Reach Last Room II
• 3341. Find Minimum Time to Reach Last Room I
• 3286. Find a Safe Walk Through a Grid
• 3123. Find Edges in Shortest Paths
• 3112. Minimum Time to Visit Disappearing Nodes
• 2977. Minimum Cost to Convert String II
• 2976. Minimum Cost to Convert String I
• 2959. Number of Possible Sets of Closing Branches
• 2737. Find the Closest Marked Node
• 2714. Find Shortest Path with K Hops
• 2699. Modify Graph Edge Weights
• 2662. Minimum Cost of a Path With Special Roads
• 2642. Design Graph With Shortest Path Calculator
• 2577. Minimum Time to Visit a Cell In a Grid
• 2473. Minimum Cost to Buy Apples
• 2297. Jump Game VIII
• 2290. Minimum Obstacle Removal to Reach Corner
• 2203. Minimum Weighted Subgraph With the Required Paths
• 2093. Minimum Cost to Reach City With Discounts
• 2045. Second Minimum Time to Reach Destination
• 1976. Number of Ways to Arrive at Destination
• 1810. Minimum Path Cost in a Hidden Grid
• 1786. Number of Restricted Paths From First to Last Node
• 1514. Path with Maximum Probability
• 1368. Minimum Cost to Make at Least One Valid Path in a Grid
• 1334. Find the City With the Smallest Number of Neighbors at a Threshold Distance
• 882. Reachable Nodes In Subdivided Graph
• 787. Cheapest Flights Within K Stops
• 743. Network Delay Time
• 505. The Maze II
• 499. The Maze III
• 399. Evaluate Division

Strongly Connected Component

• 2846. Minimum Edge Weight Equilibrium Queries in a Tree
• 1568. Minimum Number of Days to Disconnect Island
• 1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree

Topological Sort

• 3481. Apply Substitutions
• 3435. Frequencies of Shortest Supersequences
• 3383. Minimum Runes to Add to Cast Spell
• 2603. Collect Coins in a Tree
• 2392. Build a Matrix With Conditions
• 2371. Minimize Maximum Value in a Grid
• 2360. Longest Cycle in a Graph
• 2328. Number of Increasing Paths in a Grid
• 2246. Longest Path With Different Adjacent Characters
• 2192. All Ancestors of a Node in a Directed Acyclic Graph
• 2127. Maximum Employees to Be Invited to a Meeting
• 2115. Find All Possible Recipes from Given Supplies
• 2050. Parallel Courses III
• 1976. Number of Ways to Arrive at Destination
• 1916. Count Ways to Build Rooms in an Ant Colony
• 1857. Largest Color Value in a Directed Graph
• 1786. Number of Restricted Paths From First to Last Node
• 1728. Cat and Mouse II
• 1632. Rank Transform of a Matrix
• 1591. Strange Printer II
• 1462. Course Schedule IV
• 1245. Tree Diameter
• 1203. Sort Items by Groups Respecting Dependencies
• 1136. Parallel Courses
• 1059. All Paths from Source Lead to Destination
• 913. Cat and Mouse
• 851. Loud and Rich
• 802. Find Eventual Safe States
• 631. Design Excel Sum Formula
• 444. Sequence Reconstruction
• 329. Longest Increasing Path in a Matrix
• 310. Minimum Height Trees
• 269. Alien Dictionary
• 210. Course Schedule II
• 207. Course Schedule

Union Find

• 3493. Properties Graph
• 3383. Minimum Runes to Add to Cast Spell
• 3378. Count Connected Components in LCM Graph
• 3235. Check if the Rectangle Corner Is Reachable
• 3108. Minimum Cost Walk in Weighted Graph
• 2948. Make Lexicographically Smallest Array by Swapping Elements
• 2852. Sum of Remoteness of All Cells
• 2812. Find the Safest Path in a Grid
• 2782. Number of Unique Categories
• 2709. Greatest Common Divisor Traversal
• 2685. Count the Number of Complete Components
• 2658. Maximum Number of Fish in a Grid
• 2617. Minimum Number of Visited Cells in a Grid
• 2573. Find the String with LCP
• 2503. Maximum Number of Points From Grid Queries
• 2493. Divide Nodes Into the Maximum Number of Groups
• 2492. Minimum Score of a Path Between Two Cities
• 2424. Longest Uploaded Prefix
• 2421. Number of Good Paths
• 2382. Maximum Segment Sum After Removals
• 2371. Minimize Maximum Value in a Grid
• 2368. Reachable Nodes With Restrictions
• 2334. Subarray With Elements Greater Than Varying Threshold
• 2316. Count Unreachable Pairs of Nodes in an Undirected Graph
• 2307. Check for Contradictions in Equations
• 2204. Distance to a Cycle in Undirected Graph
• 2157. Groups of Strings
• 2092. Find All People With Secret
• 2076. Process Restricted Friend Requests
• 2003. Smallest Missing Genetic Value in Each Subtree
• 1998. GCD Sort of an Array
• 1971. Find if Path Exists in Graph
• 1970. Last Day Where You Can Still Cross
• 1905. Count Sub Islands
• 1724. Checking Existence of Edge Length Limited Paths II
• 1722. Minimize Hamming Distance After Swap Operations
• 1697. Checking Existence of Edge Length Limited Paths
• 1632. Rank Transform of a Matrix
• 1631. Path With Minimum Effort
• 1627. Graph Connectivity With Threshold
• 1584. Min Cost to Connect All Points
• 1579. Remove Max Number of Edges to Keep Graph Fully Traversable
• 1569. Number of Ways to Reorder Array to Get Same BST
• 1559. Detect Cycles in 2D Grid
• 1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree
• 1391. Check if There is a Valid Path in a Grid
• 1361. Validate Binary Tree Nodes
• 1319. Number of Operations to Make Network Connected
• 1267. Count Servers that Communicate
• 1258. Synonymous Sentences
• 1254. Number of Closed Islands
• 1202. Smallest String With Swaps
• 1168. Optimize Water Distribution in a Village
• 1135. Connecting Cities With Minimum Cost
• 1102. Path With Maximum Minimum Value
• 1101. The Earliest Moment When Everyone Become Friends
• 1061. Lexicographically Smallest Equivalent String
• 1020. Number of Enclaves
• 990. Satisfiability of Equality Equations
• 959. Regions Cut By Slashes
• 952. Largest Component Size by Common Factor
• 947. Most Stones Removed with Same Row or Column
• 928. Minimize Malware Spread II
• 924. Minimize Malware Spread
• 886. Possible Bipartition
• 839. Similar String Groups
• 827. Making A Large Island
• 803. Bricks Falling When Hit
• 785. Is Graph Bipartite?
• 778. Swim in Rising Water
• 765. Couples Holding Hands
• 737. Sentence Similarity II
• 721. Accounts Merge
• 711. Number of Distinct Islands II
• 695. Max Area of Island
• 694. Number of Distinct Islands
• 685. Redundant Connection II
• 684. Redundant Connection
• 547. Number of Provinces
• 399. Evaluate Division
• 323. Number of Connected Components in an Undirected Graph
• 305. Number of Islands II
• 261. Graph Valid Tree
• 200. Number of Islands
• 130. Surrounded Regions
• 128. Longest Consecutive Sequence