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Problems
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Problems

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Difficulty
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3200
Dice Puzzle
Easy
3212
Instant messaging system
Easy
3221
Channel Allocation
Medium
3231
Huffman Trees
Easy
3235
Interesting number
Easy
3336
Hexagram
Easy
3348
City Game
Very hard
3354
Sum
Very easy
3357
Wonderful!
Very easy
3359
Cubes
Easy
3363
Beautiful name
Very easy
3366
Mesmerization of The Count
Very hard
3369
Pride and Prejudice and Zombies
Medium
3381
Guessing Game
Medium
3382
Hidden Code
Medium
3390
Fibonacci Words
Very easy
3437
Encircling Circles
Easy
3521
Sudoku
Very easy
3523
Su-Su-Sudoku
Very easy
3525
Sudoku
Easy
3529
Electrical circuit
Easy
3536
Rice Company
Very easy
3542
Kaeru Jump
Medium
3544
Dungeon Wall
Medium
3565
Longest Lane
Easy
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