This month’s challenge is dedicated to the memory of Frances Allen, who passed away in August. Among her many accomplishments is the invention of the control-flow graph, in her 1970 paper “Control flow analysis“
My solution
with step number:
10 A = a
20 B = b
30 JMP_ZERO B 90
40 AA = A
50 BB = B
60 A = B
70 B = AA % BB
80 JMP 30
90 RETURN A
-----
without step number:
A = a
B = b
JMP_ZERO B 90
AA = A
BB = B
A = B
B = AA % BB
JMP 30
RETURN A
IBM Gadi submission result:
Thanks! This indeed computes the GCD, but the requirement on the number of paths is not fulfilled.