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Problems
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Problems

Topics
Difficulty
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533
The Core of Power
Hard
534
Computer Network
Medium
535
Shoring Up the Levees
536
Combination Lock
537
Oleh's Lotto Tickets
538
A No-Win Situation
Medium
539
A Walk in the Park
540
Teleport Out!
Hard
541
Worms
Medium
542
Soda Surplier
543
Money Matters
Very easy
544
Allergy Test
Very easy
545
Rain Fall
Very easy
546
Racing Game
Medium
547
Gokigen Naname
548
Flight Planning
Very easy
549
Beacons
Very easy
550
Playfair Cipher
551
Code Permutations
552
Numerical sequence
Easy
553
Recursion
Very easy
554
Inscribed Circle
Easy
555
The nearest points
Very easy
556
The sum of two numbers
Medium
557
Cutting rectangle
Very easy
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