Problems
Olympic Parade#7518
Medium · Bitmasks
Server#7526
Very easy · Implementation
Eligibility#7527
Very easy · Implementation
Plane Ticket Pricing#7528
Hard · Dynamic programming
Facility Locations#7529
Hard · Greedy algorithms · Combinatorics
Repeated Substrings#7530
Very hard · Suffix Array · Strings
Landline Telephone Network#7531
Very easy · Graphs
Aquarium Tank#7532
Easy · Binary Search
Restaurant Ratings#7533
Hard · Combinatorics · Math
Locked Treasure#7534
Very easy · Dynamic programming
Yet Satisfiability Again!#7535
Very easy · Ternary search · Implementation
Continued Fraction#7536
Easy · Implementation
Popular Vote#7537
Very easy · Implementation
Flipping Cards#7538
Very easy · Graphs
Amazing Race#7539
Hard · Dynamic programming · Bitmasks · Shortest paths
Scaling Recipes#7540
Medium · Implementation
The Magical 3#7544
Very easy · Math
I've Been Everywhere, Man#7546
Very easy · Implementation
Happy Camper#7548
Very easy · Brute force · Implementation
Chemistry#7549
Easy · Implementation
Fuel Stops#7551
Medium · Greedy algorithms
Adjustment Office#7561
Very easy · Prefix Sums
Binary vs Decimal#7562
Medium · Dynamic programming
Cactus Jubilee#7563
Very hard · Graphs · Depth-first Search · Trees · Combinatorics · Data Structures
Distance on Triangulation#7564
Very easy · Shortest paths · Graphs