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Problems

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Difficulty
Sort by
9546
Old Phone
Very easy
9556
Longest Alternating Sequence with One Flip
Very easy
9559
Grid with equal xor
Easy
9560
Two-dimensional array - input, output
Very easy
9561
Largest in each column
Very hard
9563
Rows with minimal elements
Very easy
9565
Minimum among maximums
Hard
9569
Rotate the array clockwise
Easy
9571
The sum of elements of a two-dimensional array
Very easy
9572
Number of even elements in a two-dimensional array
Very easy
9573
Sum of positive elements in odd rows
Very easy
9581
Balls of Buma
Very easy
9591
Lexicography
Easy
9595
Video conference
Very easy
9596
Word Processor
Easy
9607
Watermelons
Hard
9610
Mixed sequence
Very easy
9617
Number of positive
Very easy
9618
Sum of negative
Very easy
9630
Bishops
Medium
9631
Competition of sequences
Very easy
9634
Go to the finals
Very easy
9635
Transport system
Medium
9641
Cold Days in Dinotopia
Hard
9649
Java Fraction 1
Very easy
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