Graph (18 completed) Back to top # Title Level Cats Solution Languages Date Complete 261 Graph Valid Tree Medium B75, N150, Weekly Premium solution py Jan 29, 2025 684 Redundant Connection Medium Daily, N150 solution py Jan 29, 2025 743 Network Delay Time Medium N150 solution java, py Jul 28, 2024 797 All Paths From Source to Target Medium solution py Mar 05, 2025 1334 Find the City With the Smallest Number of Neighbors at a Threshold Distance Medium Daily solution py Jul 26, 2024 1368 Minimum Cost to Make at Least One Valid Path in a Grid Hard Daily solution py Jan 18, 2025 1462 Course Schedule IV Medium Daily solution py Jan 27, 2025 1579 Remove Max Number of Edges to Keep Graph Fully Traversable Hard Daily solution py Jun 30, 2024 1791 Find Center of Star Graph Easy Daily solution c, cpp, java, py Jun 27, 2024 2045 Second Minimum Time to Reach Destination Hard Daily solution py Jul 28, 2024 2093 Minimum Cost to Reach City With Discounts Medium Weekly Premium solution py Jul 23, 2024 2192 All Ancestors of a Node in a Directed Acyclic Graph Medium Daily solution java, py Jun 29, 2024 2285 Maximum Total Importance of Roads Medium Daily solution c, cpp, java, py Jun 28, 2024 2374 Node With Highest Edge Score Medium solution py Jun 18, 2024 2392 Build a Matrix With Conditions Hard Daily solution py Jul 21, 2024 2473 Minimum Cost to Buy Apples Medium solution py Jun 29, 2024 2493 Divide Nodes Into the Maximum Number of Groups Hard Daily solution py Jan 30, 2025 2976 Minimum Cost to Convert String I Medium Daily solution py Jul 27, 2024