Minor critique, but for the part where you enable the optimization in gcc, I think just showing the individual option (-foptimize-sibling-calls) would be better and then mention that it's enabled in -O2/O3. :)
What was the optimization Sir? In the code which u showed at the end, coz both codes look same, so Sir can u please say what change did u made? Bcoz I can see return in both the codes and both are similar, thank you, would wait for ur reply.
Actually the whole point is when you return that time if you are doing some operation then it is not tail recursive optimised, and in second example i showed how to manipulate and get pure tail recursion optimisation. Go through video again, you will get it. At first it is hard to digest. And i think i rushed a little in this video, i could have gone more deeper, but now can't do much. May be i will release new video on same with better explanation but that is just in case if so many people find it hard to understand.
