COulD you help me in this problem?

Правка en1, от Halym2007, 2023-11-01 14:45:59

i trying to solve this problem.I tried my best I got 23 point(I got 1-st and 2-nd subtask).Can you share your idea for full score?

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en1 Английский Halym2007 2023-11-01 14:45:59 213 Initial revision (published)