Problems

Note that you can solve most task in any order!
Already solved ones are at the bottom of the table.

Solve more and win a certificate


Id Title Translations Solved Blessing
24Neumann's Random GeneratorDE RU21585.20
19Matching BracketsES RU15635.76
104Triangle Area14025.95
94Fool's Day 201412076.21
22Two PrintersRU11926.23
37Mortgage Calculator7497.04
69Fibonacci Divisibility7327.08
62Prime Ranges6397.31
127Anagrams5647.53
36Code Guesser4887.78
54Pythagorean Triples4258.02
51Dungeons and Dragons Dice3828.20
97Girls and Pigs3718.25
70Most Frequent Word3308.46
66Caesar Cipher Cracker3228.50
145Modular Exponentiation2868.71
71Fibonacci Divisibility Advanced1969.36
89Instrument Tuner1889.43
90Lexicographic Permutations1769.54
108Star Medals1729.58
150Introducing Regexps1639.68
131Four Pics One Word1619.70
103Easter Eggs12210.18
140Proper Bracket Sequences8910.72
129Enumerating Combinations8510.80
130Combinations with Repetitions8310.84
151Word Ladders8210.86
173Chords of Music8210.86
110Lucky Tickets Advanced7311.06
168Caesar meets BF7211.08
139Beam Balance and Masses7011.13
111Necklace Count6311.31
192Gangster Battles5911.42
102Travelling Salesman5811.45
100Crossing the Road5311.61
159Hard Life5011.71
179Look and Say binary5011.71
157Emirp primE4611.85
210Ticket Puzzle3912.13
107Knight's Tour3712.22
175Algae Robot3712.22
149Prime Chains3312.41
209Suffix Array Advanced2612.81
180Simple Game of Sticks2512.88
178Maze of the Wumpus1813.42