You know that 9+10 is 21, but someone challenges you saying that it isn't. You'll show them, though.
Have your program print 21
in the shortest code length possible. The only numeral characters you can use are the ones found in the left side of this equation: 9 + 10 = 21
. That is, "9", "1", and "0".
Bonus: if you can do it without typing ANY numeral characters (i.e. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9) you get to subtract 5 bytes from your score.
K)
orYX
. \$\endgroup\$ – Dennis Oct 3 '15 at 6:29C!B!
for 4 - 5 = -1 bytes... i wish this was still open. \$\endgroup\$ – cat Dec 10 '15 at 1:13