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Problems

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Difficulty
Sort by
7254
Segments
Very easy
7286
Lexicographic order
Hard
7297
Marisia and Stepan
Very hard
7300
Code Lock
Hard
7304
Code lock
Easy
7306
Chess Masters
Easy
7309
Deal!
Easy
7375
Barrel
Easy
7376
Exchange of digits
Hard
7386
Trees
Medium
7400
New Game
Easy
7405
Ice Cream
Easy
7407
Sum of prime numbers
Medium
7440
Easy
Easy
7461
FRIENDLY NUMBERS
Medium
7470
Bank
Hard
7476
Riddicks Cube
Medium
7479
Crazy old lady
Medium
7480
Luxury burrow
Easy
7492
Alarm Clock
7510
ARITHMETIC PUZZLE
Hard
7548
Happy Camper
Very easy
7586
Cactus Reloaded
Easy
7595
Language Recognition
Hard
7600
Task 5
Very easy
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