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\$\begingroup\$ Alternate answer (12 bytes): ,>,[-<++>]<. \$\endgroup\$

Julian Lachniet
– Julian Lachniet

2017-02-13 20:37:15 +00:00
Commented Feb 13, 2017 at 20:37
\$\begingroup\$ @JulianLachniet will that output A+2B? \$\endgroup\$

george
– george

2017-03-08 13:37:58 +00:00
Commented Mar 8, 2017 at 13:37
\$\begingroup\$ A+2B hacked when B=0 \$\endgroup\$

l4m2
– l4m2

2017-12-15 18:48:39 +00:00
Commented Dec 15, 2017 at 18:48
\$\begingroup\$ @mbomb007 I'm saying the ,>,[-<++>]<. solution \$\endgroup\$

l4m2
– l4m2

2017-12-18 21:04:00 +00:00
Commented Dec 18, 2017 at 21:04
\$\begingroup\$ @JulianLachniet Yeah, that's not a valid answer because A+2B for input B=0, gives A. \$\endgroup\$

mbomb007
– mbomb007

2017-12-18 22:40:31 +00:00
Commented Dec 18, 2017 at 22:40

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