Determining the Length of the String `\\\22a,0\n` in C

int len = strlen("\\22a,0\n");

To determine the length of the string \\\22a,0\n, we need to consider how each character and escape sequence is interpreted in C.

Here's the breakdown of the string:

1. \\ - This is an escape sequence for a single backslash (\). It counts as 1 character.
2. \2 - This is an escape sequence for the ASCII character with octal value 2. It counts as 1 character.
3. 2 - This is the character 2. It counts as 1 character.
4. a - This is the character a. It counts as 1 character.
5. , - This is the character ,. It counts as 1 character.
6. 0 - This is the character 0. It counts as 1 character.
7. \n - This is an escape sequence for a newline character. It counts as 1 character.

Now, let's add up the lengths of these characters:

• \\ -> 1 character
• \2 -> 1 character
• 2 -> 1 character
• a -> 1 character
• , -> 1 character
• 0 -> 1 character
• \n -> 1 character

So, the total length of the string is:

1 + 1 + 1 + 1 + 1 + 1 + 1 = 7

Therefore, the value of len will be 7.