Research Article

The Computational Complexity of Tissue P Systems with Evolutional Symport/Antiport Rules

Algorithm 2

Execution phase.
Input:  The output    of the selection phase
for  each    do
end for
for  each    do
end for
for  each    do
for  each    according to the lexicographical
order  do
if    then
else
end if
end for
end for