HIT cat is a virtual elfin who likes to wander on the internet.
But now he is caught by a bad guy and imprison in a binary file.

The bad guy said "I have splited the little cat into pieces, each int piece is as big as int,
Firstly,  I added  1 to each int piece.
Then, I put the total number of the int pieces in the binary file.
Finally, I put all the pieces of that cat one by one in the binary file.
hahahahaha!!!"

To save HIT cat you have to recover the data in a reversed way the bad guy did.

What you need to do:

read the file HITcat
malloc some memory for the data
recover the data
print the HIT cat on your screen
write the data in a ASCII file

│＼＿＿╭╭╭╭╭＿＿／│
│　　　　　　　　　　　│　　 　╭────-──╮
│　　　　　　　　　　　│　　Ｏ│ 　HELP   　   │
│　┬　　　　　  ┬　  │　Ｏ  │        ME!    │
│≡　　 　　         ≡│Ｏ    ╰─────  ─ ╯
│　　　　﹋﹋﹋　　 　 │　
╰──┬Ｏ───Ｏ┬──╯

All the functions you need to deal with file is on your textbook.