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Problems

Implementation
Difficulty
Sort by
9543
Swimming pool
Medium
9545
Tower
Medium
9546
Old Phone
Very easy
9551
Sum a*a + ... + b * b
9556
Am I Drunk?
Very easy
9559
Grid with equal xor
Easy
9560
Two-dimensional array - input, output
9561
Largest in each column
Very easy
9563
Rows with minimal elements
Very easy
9565
Minimum among maximums
Easy
9567
Move zero elements to the right
9568
Move zero elements up
9569
Rotate the array clockwise
9570
Reflect relative to the vertical axis of symmetry
Medium
9571
The sum of elements of a two-dimensional array
Very easy
9572
Number of even elements in a two-dimensional array
9573
Sum of positive elements in odd rows
9581
Balls of Buma
Very easy
9591
Lexicography
Easy
9593
Merge the sequences
9595
Video conference
Very easy
9596
Word Processor
Very easy
9607
Watermelons
Hard
9610
Mixed sequence
9617
Number of positive
  • 1
  • …
  • 72
  • 73
  • 74
  • …
  • 86