The first line contains an integer N (2 \leq N \leq 100,000), giving the total number of files and directories. For the purposes of input, each object (file or directory) is assigned a unique integer ID between 1 and N, where ID 1 refers to the top level directory.

Next, there will be N lines. Each line starts with the name of a file or directory. The name will have only lower case characters a-z and digits 0-9, and will be at most 16 characters long. Following the name is an integer, m. If m is 0, then this entity is a file. If m > 0, then this entity is a directory, and it has a total of m files or directories inside it. Following m there will be m integers giving the IDs of the entities in this directory.

#4061 upload - done - how_to_reg -

Directory Traversal timer 2s memory 512MB

#4061

Directory Traversal 2s 512MB