Why did we get this output?

Question

I know printf() returns the number of characters after printing but why is the output 6521 for this?

https://code.sololearn.com/cPBTJVUpJ73n/?ref=app

Answer 1

000101 is octal representation of decimal 65

The first 2 of the output (65) was this number

The third of the output (2) was the number of characters used to print 65 (2 characters, 6 and 5)

The fourth of the output (1) was the number of characters used to print 2 (the length of '65').

Hth, cmiiw

Answer 2

Ipang Got it, thanks!

Answer 3

codemonkey Yes