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Problems

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Difficulty
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2388
Number of permutation
Very easy
2410
Word Game
Easy
2431
Game Progress
Very hard
2434
Necklace
Easy
2436
Necklace 2
Very hard
2438
Equations in Permutations
Easy
2442
Balls
Hard
2494
Report 2
Hard
2581
Lamps of the Mind
Hard
2623
Bisectors
Hard
2679
The Banzhaf Buzz-Off
Hard
2693
Binary vs. Negative Binary
Medium
2712
The problem of Queens
Very easy
2728
Cipher
Hard
2755
Pills
Medium
2828
Polynomial
Medium
2847
Concatenation of credits
Very easy
2871
Hypercube High
Very hard
2872
Hypercube Junior
Hard
2877
SuperNim High
Very hard
2879
K-sided domino
Medium
2901
Stones
Very hard
2999
Function-10
Very easy
3058
Bishops
Very easy
3069
Guess the Numbers
Medium
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  • 20