Problèmes
New-year presents#26
Moyen · Greedy algorithms
Cycle shifts#27
Facile · Number theory · Bitmasks · Bitwise Operations
Product#28
Moyen · Implementation · Math
The level of palindrome#29
Facile · Brute force · Strings
Certification#30
Moyen · Dynamic programming · Combinatorics
Superstitious Santa Claus#31
Très facile · Brute force
Knight and Pawn#32
Moyen · Games · Dynamic programming
The favourite numbers of Santa Claus#33
Facile · Number theory
The word of sponsor#34
Moyen · Graphs
Triangles from Matches#35
Moyen · Math
Gorynych the Dragon#36
Facile · Math
Mail of the Sponsor#37
Très facile · Graphs · Breadth-first Search
Firs Protection#38
Moyen · 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
Moyen · Geometry
Competitors’ quantity of the Olympiad#43
Très facile · Number theory
The number of ones#44
Facile · Dynamic programming
The Fuel#45
Très facile · Graphs · Implementation · Greedy algorithms
The Segments#46
Très 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