Problems
Topics
Simple problem#1
Very easy · Math
Gardener#10
Easy · Greedy algorithms · Math
Dragon#16
Medium · Implementation · Math
New-year tree#23
Medium · Combinatorics · Math
Product#28
Medium · Implementation · Math
Triangles from Matches#35
Medium · Math
Gorynych the Dragon#36
Easy · Math
The cut number#50
Easy · Brute force · Math
The Cost of the K-dominoes#51
Very easy · Math
New Year Gifts#55
Easy · Math
The Billiards#58
Very easy · Math
Cleaning up the Snow#61
Very easy · Geometry · Math
The Factorial#62
Easy · Math
Mytsyk and the flowers#63
Very easy · Math
Cheese for Anfisa - 2#67
Very easy · Math · For Beginners
The Expression from the Numbers#71
Very easy · Math
Primes' Problem#94
Easy · Brute force · Math · Implementation
Bell numbers#97
Very easy · Number theory · Math
Lines#99
Hard · Math
Page Numbering#109
Very easy · Math
Clocks#111
Easy · Math
Cake#112
Very easy · Math
The Enchanted Vault#114
Hard · Number theory · Math
Long number#116
Easy · Math
Raft#117
Very easy · Math
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