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Problems

Topics
Difficulty
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5730
YAPTCHA
Very easy
5731
Skyscrapers
Very easy
5732
Business Cards
Very easy
5733
Museum
Very hard
5734
Morphing is fun
Very hard
5735
Tower
Very hard
5736
Suffix reconstruction
Medium
5737
Two professors
Very easy
5738
Counting heaps
Very hard
5739
In case of failure
Hard
5740
Army Buddies
Very easy
5741
Ball Stacking
Very easy
5742
Candy's Candy
Very hard
5743
Portuñol Dictionary
Hard
5744
Electrical Pollution
Hard
5745
File Retrieval
Very hard
5746
Garden Fence
Very hard
5747
Hedge Mazes
Very hard
5748
In Braille
Easy
5749
Jupiter Attacks!
Easy
5750
King`s Poker
Medium
5751
Delta Encoding and Decoding
Very hard
5752
Hidden Password
Very easy
5753
Crazy tea party
Very easy
5754
Supermarket
Very easy
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