What is %i in c language

Answer 1

%i = Integer
%d = Decimal
%o = Octal
%x = small letter HexaDecimal
%X = capital letter HexaDecimal
%u = unsigned int
%l = long int
%lu = long unsigned int
%c = character
%f = float
%lf = double

Answer 2

https://www.sololearn.com/Course/C/?ref=app

Format specifiers begin with a percent sign % and are used to assign values to corresponding arguments after the control string.
https://www.sololearn.com/learn/C/2914/

Answer 3

Its same as %d you putting it to printf function when you want format a digit there.