Problem suggestion

Правка en1, от youssefbou62, 2018-12-26 12:38:25

I had a little bit of trouble solving this problem 455A - Boredom so I want to train more on this type of problems so could you suggest to me some problems using same / similar (dp) principle ?

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en1 Английский youssefbou62 2018-12-26 12:38:25 213 Initial revision (published)