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Problem Library

371 coding challenges available

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StatusTitleAcceptanceDifficultySave

○ 301.Emergency Dispatch Priority SchedulerDAG Scheduling · Emergency Systems — Easy

○ 302.Datacenter Maintenance ConnectivityNetworks · Offline Dynamic Connectivity — Easy

○ 303.Ride-Pool Minimum Driver CountBipartite Matching · DAG — Hard

○ 304.CDN Cache Warm-Up PlannerCaching · Cost Optimization — Hard

○ 305.Fraud Review Window With One Ignored EventOptimization · Payment Risk — Hard

○ 306.Call Center Peak StaffingIntervals · Sweep Line — Medium

○ 307.Cloud Uptime Gap BudgetCloud Reliability · Intervals — Medium

○ 308.Food Delivery Batch WindowHashing · Logistics — Medium

○ 309.Telemetry Deadband CompressorArrays · IoT — Easy

○ 310.Courier Scan Gap AuditEvent Processing · Hashing — Easy

○ 311.Dynamic LCP of Two Ordered Tree PathsBinary Search · Dynamic Hashing — Easy

○ 312.Synchronized Collision-Free Dual RoutingMulti-Agent Path Finding · Product Graphs — Easy

○ 313.K-th Distinct Spanning Tree WeightK-Best Structures · Matroid Optimization — Easy

○ 314.Fully Dynamic Directed Reachability CountBitsets · Directed Graphs — Easy

○ 315.Fully Dynamic Minimum Spanning Tree WeightDivide and Conquer · Fully Dynamic Graphs — Easy

○ 316.Dynamic Two-SAT Clause LedgerOffline Dynamic Graphs · Rollback — Easy

○ 317.Minimum Flow Cost With Convex Edge PricesConvex Costs · Min-Cost Flow — Easy

○ 318.Dynamic Range Mode With Smallest TieFrequency Buckets · Mo's Algorithm With Modifications — Easy

○ 319.Rollback Distinct Substring CounterDynamic Strings · Rollback Data Structures — Easy

○ 320.Dynamic Forest XOR DiameterBinary Trie · Dynamic Forest — Easy