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 RU18045.17
19Matching BracketsES RU12745.77
104Triangle Area11935.89
94Fool's Day 201410286.15
22Two PrintersRU9776.23
37Mortgage Calculator6247.01
69Fibonacci Divisibility6067.06
62Prime Ranges5457.25
127Anagrams4707.50
36Code Guesser4127.73
54Pythagorean Triples3518.01
51Dungeons and Dragons Dice3218.16
97Girls and Pigs3148.20
70Most Frequent Word2848.38
66Caesar Cipher Cracker2778.42
145Modular Exponentiation2458.63
71Fibonacci Divisibility Advanced1689.28
89Instrument Tuner1589.39
90Lexicographic Permutations1569.41
131Four Pics One Word1459.54
108Star Medals1439.56
150Introducing Regexps1419.59
103Easter Eggs10510.09
140Proper Bracket Sequences8010.56
129Enumerating Combinations7710.63
130Combinations with Repetitions7310.72
151Word Ladders7110.77
110Lucky Tickets Advanced6610.89
168Caesar meets BF6310.97
173Chords of Music6211.00
139Beam Balance and Masses5711.14
102Travelling Salesman5211.30
111Necklace Count5211.30
100Crossing the Road4811.44
192Gangster Battles4611.51
159Hard Life4511.54
179Look and Say binary4211.66
157Emirp primE3911.79
107Knight's Tour3212.12
210Ticket Puzzle3112.18
149Prime Chains3012.23
175Algae Robot2912.29
209Suffix Array Advanced2312.68
180Simple Game of Sticks2012.91
178Maze of the Wumpus1813.08