$$:

After a disk partition has been formatted, the beginning of a free$-$space bitmap looks as follows $($the first block is used by the root directory$)$:

$100000000000$This particular system will search for free blocks starting from the left, so after writing a file A$,$ which uses three blocks, the bitmap looks like this:

$111100000000$Subsequently, the following four events take place, in succession:

a$)$ File B that uses five blocks was written to disk.

b$)$ File A was deleted from the disk.

c$)$ File C that uses six blocks was written to disk.

d$)$ File B was deleted from the disk.

What is the value of the bitmap after all four events are completed?

$$:

$[]$