time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Jon fought bravely to rescue the wildlings who were attacked by the white-walkers at Hardhome. On his arrival, Sam tells him that he wants t…
Jon fought bravely to rescue the wildlings who were attacked by the white-walkers at Hardhome. On his arrival, Sam tells him that he wants to go to Oldtown to train at the Citadel to become a maester, so he can return and take the deceased Aemon's pl…
C. Digit Tree time limit per test:3 seconds memory limit per test:256 megabytes input:standard input output:standard output ZS the Coder has a large tree. It can be represented as an undirected connected graph of n vertices numbered from 0 to n - 1 a…