Problems
Biochips#7486
Medium · Dynamic programming
Ants#7487
Medium · Implementation
Monkey and Apple-trees#7488
Medium · Segment Tree
Mountain Trek Route#7489
Easy · Greedy algorithms · String suffix structures · Sorting
Substrings#7490
Very hard · Strings · Implementation
Integer#7491
Very easy · Math
Alarm Clock#7492
Easy · Brute force
Buffcraft#7493
Easy · Greedy algorithms · Math
Combinator Expression#7494
Easy · Data Structures · Dynamic programming
Digits#7495
Very easy · Implementation · Math
Expression#7496
Easy · Dynamic programming
Fragmentation#7497
Medium · Sorting · Graphs
Grave#7498
Very easy · Geometry
Hiking in the Hills#7499
Very easy · Graphs · Binary Search
Instruction#7500
Hard · Trees · Implementation · Greedy algorithms · Sorting
Joy of Flight#7501
Very easy · Implementation · Math
Kebab House#7502
Very easy · Dynamic programming
Olympiad#7503
Very easy · Greedy algorithms · Math
Three rectangles#7504
Very easy · Implementation
Sequence of multiples#7505
Medium · Math
Journey in the City#7506
Easy · Graphs · Shortest paths
PRODUCT#7507
Medium · Sorting
WEEK NUMBER#7508
Easy · Implementation
Ones and sevens#7509
Easy · Bitmasks
ARITHMETIC PUZZLE#7510
Hard · Brute force · String suffix structures