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Problems

Implementation
Difficulty
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2225
Beautiful numbers
Medium
2238
Who will get the "avtomat"?
2243
Two collections
2261
Defense of a Kingdom
Very easy
2265
Horrible Truth
2266
Ideal Contest
Medium
2284
Chips Challenge
Easy
2285
Coffee Central
Easy
2289
Mummy Madness
2304
Horrible Queries
Very easy
2309
Windows
Easy
2315
Permutations (Easy)
2319
Rectangles Online (Easy)
2322
Columns
2323
Numbers from digits
2330
Row 2
Medium
2334
Mad tea Party
Very easy
2336
A large number
Easy
2341
Moving the king
Easy
2343
Simple Path
2346
Forbidden Corridor
Very easy
2347
Care of Magical Creatures
Easy
2348
Numerology
Hard
2349
Races
Easy
2358
Chess
Very easy
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