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A. New Year Transportation time limit per test  2 seconds memory limit per test  256 megabytes input  standard input output  standard output New Year is coming in Line W

time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output A few years ago, Hitagi encountered a giant crab, who stole the whole of her body w...

In the beginning of the new year Keivan decided to reverse his name. He doesn't like palindromes, so he changed Naviek to Navick. He is too selfish, so for a given n he wants to obtain a string of n

We have a string of letters 'a' and 'b'. We want to perform some operations on it. On each step we choose one of substrings "ab" in the string and replace it with the string "bba". If we have no "ab" ...

C. Boxes Packingtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputMishka has got n empty boxes. For every i (1 ≤ i ≤ n), i-th box is a cube with side...