Problemi
New-year presents#26
Media · Greedy algorithms
Cycle shifts#27
Facile · Number theory · Bitmasks · Bitwise Operations
Product#28
Media · Implementation · Math
The level of palindrome#29
Facile · Brute force · Strings
Certification#30
Media · Dynamic programming · Combinatorics
Superstitious Santa Claus#31
Molto facile · Brute force
Knight and Pawn#32
Media · Games · Dynamic programming
The favourite numbers of Santa Claus#33
Facile · Number theory
The word of sponsor#34
Media · Graphs
Triangles from Matches#35
Media · Math
Gorynych the Dragon#36
Facile · Math
Mail of the Sponsor#37
Molto facile · Graphs · Breadth-first Search
Firs Protection#38
Media · Convex Hull · Geometry
Sponsor’s Money#39
Facile · Dynamic programming
Water supply#40
Facile · Graphs
Command of the Mayor#41
Facile · Graphs
Green spot#42
Media · Geometry
Competitors’ quantity of the Olympiad#43
Molto facile · Number theory
Numero di unità#44
Facile · Dynamic programming
The Fuel#45
Molto facile · Graphs · Implementation · Greedy algorithms
The Segments#46
Molto facile · Dynamic programming
The Parquet of the Triangles#47
Facile · Graphs · Implementation
The Red and Blue Squares#48
Facile · Geometry
Smart Feeder#49
Facile · Geometry
The cut number#50
Facile · Brute force · Math