Longest common subsequence

#1

please help me with the code

#2


added comments and fixed the mistake, hope this helps
if your doubt is solved, please mark it as resolved

#3

it is not giving the correct output

#4


that was because, it was printing it in reverse order, you have to save it in a vector and then iterate the vector backwards

#5

this passes all the cases on hackerblocks as well
if your doubt is solved. please mark it as resolved