Remove Duplicate Letters | LeetCode 316 & 1081 | October LeetCode Challenge | Day 11

[@vinayakgm8413]

Clean explaination

[@divyakumari750]

Great...explanation sir.....

[@gwendolengallery6963]

Best explanation I've watched on youtube. Thanks!

[@sanjanagogte4087]

Excellent explanation. Very clear and to the point.

[@mandy1339]

Finally understood this problem

[@ANKURSingh-yl2lj]

wow very easily explained!

[@tejasj5485]

its just easy , just do print(set(string))

[@pallavibansode6588]

Good work...everything is understood 🙌

[@insane2539]

what is the time and space complexity?

[@shashanksah3915]

thank you for the explanation. It really helps

[@neslierivera9117]

Paano po pag nakalock tpos nag do doble ang letter paano un

[@ImranKhan-mc6vf]

Your logic would fail for 'bcadbc'. According to your logic you compare with prev visited character. So, b goes in, then c is greater so c goes too, then you check 'a' that is less than c, so in result [b, a], similarly d goes in too. Thus result is [b,a,d,c] instead of [a,d,b,c]. Let me know what am I missing?

[@learncoderepeat]

You have to remove the previous element in a loop, not just one time. Check the explanation from 14:30 - 15:15