Practice. Submit. Improve.

Problem Library

371 coding challenges available

0/371Solved

StatusTitleAcceptanceDifficultySave

○ 81.Versioned Sensor Signature XOR QueryPersistent Segment Tree · Persistent Trie — Easy

○ 82.Versioned Network Address XOR SearchPersistent Segment Tree · Persistent Trie — Easy

○ 83.Versioned Game Item XOR QueryPersistent Segment Tree · Persistent Trie — Easy

○ 84.Versioned Inventory Code XOR QueryPersistent Segment Tree · Persistent Trie — Easy

○ 85.Versioned Security Token XOR SearchPersistent Segment Tree · Persistent Trie — Easy

○ 86.Factory Upgrade Dependency PortfolioBitmask DP · Budget Optimization — Hard

○ 87.Research Experiment Dependency BudgetBitmask DP · Budget Optimization — Hard

○ 88.Construction Project Dependency PlanBitmask DP · Budget Optimization — Hard

○ 89.Course Curriculum Budget SelectionBitmask DP · Budget Optimization 0% Hard

○ 90.Software Feature Roadmap SelectionBitmask DP · Budget Optimization — Hard

○ 91.Game Skill Tree Route ReversalMaximum Subarray · Path Processing — Hard

○ 92.Campus Walk Sequence ReversalMaximum Subarray · Path Processing — Hard

○ 93.Power Grid Inspection Route ReversalMaximum Subarray · Path Processing — Hard

○ 94.Family Tree Value Route RepairMaximum Subarray · Path Processing — Hard

○ 95.Supply Chain Route Segment ReversalMaximum Subarray · Path Processing — Hard

○ 96.Garden Plot Row ReorderingGrid Dynamic Programming · Optimization — Hard

○ 97.Factory Conveyor Row FlipGrid Dynamic Programming · Optimization — Hard

○ 98.Hospital Supply Shelf ReversalGrid Dynamic Programming · Optimization — Hard

○ 99.Solar Farm Panel Row RewireGrid Dynamic Programming · Optimization — Hard

○ 100.Warehouse Aisle Row ReversalGrid Dynamic Programming · Optimization — Hard