Problems
The post office#2509
Very easy · Greedy algorithms · Brute force
Queue Sorting#2510
Very easy · Data Structures
Starbase Defense Grid#2514
Hard · Geometry · Binary Search · Ternary search
Transactions#2515
Hard · Dynamic programming · Number theory · Knapsack
Viruses#2516
Easy · Dynamic programming
Cutting the Cake#2522
Very hard · Binary Search
Fibonacci Strings#2523
Easy · Dynamic programming
Fibonacci strings#2524
Very easy · Dynamic programming · Strings
Fibonacci String#2525
Very easy · Strings
Concatenation#2526
Easy · Strings
Binary Fibonacci String (BFS)#2527
Very easy · Strings
Diophantus of Alexandria#2528
Very easy · Number theory · Math
Tudoku#2529
Medium · Brute force · Depth-first Search
Traveling Queen Problem#2530
Very hard · Graphs · Brute force
Mine Map#2531
Medium · Breadth-first Search
Knights of the Round Table#2532
Hard · Geometry
Honeymoon Hike#2533
Very easy · Dynamic programming · Graphs
Relocation#2534
Very easy · Dynamic programming · Brute force
Gauß in Elementary School#2535
Very easy · Prefix Sums
Kick-Tipp#2536
Easy · Sorting
Elephant show#2537
Easy · Depth-first Search
Encoding binary numbers#2538
Easy · Strings
Chorus#2539
Very easy · Strings · Brute force
Length and frequency of sentences#2540
Very easy · Implementation
Another word sorting#2541
Very easy · Sorting