Write a program that reads a file whose name is given on the command line. Count how many blank lines (i.e., lines of length 0) are in the file. Find the longest line and count how many lines of that length exist in the file. Then print a summary of the form

The file ... has x empty lines.
The longest line is has length y.
There are z lines of that length.

However, if there are no empty lines, write “no empty lines”, and if it has one empty line, write “one empty line”.

If there is only one line of maximum length, don't include the last sentence.

If the file is empty (i.e., has length 0), don't include the last two sentences, since there is no line in it.