the %3d in printf

[Kashi Chan]

what does the %3d do exactly? i dont see it displayed anywhere and the actual value isnt displayed till later in the statement

[Kashi Chan]

mm figured out the d means decimal but not sure bout the 3

[Kris Verdeyen]

mm figured out the d means decimal but not sure bout the 3
The 3 is the number of displayed digits.

If you use a number there, it will print leading zeros to fill up the number, up to 3. Instead of '1', it will print '001';

[Greg Ross]

The 3 is the number of displayed digits.

If you use a number there, it will print leading zeros to fill up the number, up to 3. Instead of '1', it will print '001';
Actually, %3d should print ' 1' (space, space, one.) You would need %03d to get '001'.