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Problems
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Problems

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Difficulty
Sort by
2900
Roman numerals
Easy
2910
ABCDEF
Very easy
2932
Dima and lines
Very easy
2937
Maksym and the Time Machine
Easy
2939
Dima and array 1
Easy
2942
Dima and the Table
2943
Dima and the Table
2949
Adding and Removing Points
Easy
2952
Count Online
Very easy
2954
The farthest
Easy
2955
Persistent Array
Very easy
2956
Permutations strike back
Medium
2958
Projection in $\mathbb{R}^3$
Hard
2963
Antitest
2970
Swap
Very easy
2971
Stencil
Very easy
2977
Croatian cube
Very easy
2982
Funny Confusion
Very easy
2984
Abracadabra
Easy
2986
Cubes
Easy
2987
Polygons
Very easy
2995
The extra digits
Medium
2997
Friday - 13
Medium
2998
Checkered sheet
Easy
3002
Tournament
Very easy
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