Preorder, Inorder and Postorder in 5 minute | Tree Traversal | Easiest and Shortest Trick

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Pre-order traversal while duplicating nodes and values can make a complete duplicate of a binary tree. It can also be used to make a prefix expression (Polish notation) from expression trees: traverse the expression tree pre-orderly.
In-order traversal is very commonly used in binary search trees because it returns values from the underlying set in order, according to the comparator that set up the binary search tree (hence the name).
Post-order traversal while deleting or freeing nodes and values can delete or free an entire binary tree. It can also generate a postfix representation of a binary tree
0:00 - Introduction
1:35 - Complete the given tree
2:23 - Basic technique
2:54 - Solution with example
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#Preorder#Inorder#Postorder#DataStructure

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this guy deserves oscar for explaining this clearly

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Oscar is for acting not teaching LoL

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I spent 1 hour in class trying to understand this but couldn't even solve 1 question. And now after watching this video for 5 minutes, I solved 5 examples in 10 minutes. I'm truly grateful to you for this video, sir. You are the best. 🙇🏻‍♂

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Give this Sir an Oscar for this trick Most efficient way to get inorder,preorder,postorder traversal👍👍

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🏅🏆

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I watched this trick 30 mins before exam and got it right! Can't say enough thank you🤗🥺

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THIS IS THE BEST VIDEO TO LEARN TREE TRAVERSALS. I WAS STRUGGLING A LOT IN IT INITIALLY. BUT, AFTER WATCHING SIR'S EXPLANATION I LEARNED IT EVEN BEFORE 6:46 MINUTES!!!!🔥🔥🔥

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True aasani se sikhaya sir ne 🙏

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i am so grateful for this , it's wonderul and 100% efficient in any kind of question. thankyou so much sir !

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[@vaibhavsood5713]

Amazing method! Couldn't find an easier way of doing this! Btw this question is worth 10 marks in our university exam! 😂 And it's doable in 2 minutes using Sir's trick! It's amazing how his video is still helping people after 3 years! A huge round of applause for this amazing teacher 👏👏👏 He helped me with my DBMS subject as well! This comment is to tell him that not just GATE aspirants but college/university students watch him too! I guess majority might be us college students🤣 even though the channel name is Gate Smashers. Once again, a very great and helpful video😇

[@GateSmashers]

Thank you so much Vaibhav..lots of blessings

[@vaibhavsood5713]

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I have seen the video before 20 minutes of my exam and got common and secure 2 MCQ from this!!! Again Thanks a lot!

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[@Desmond113]

love you bro, it was so hard to me to understand this concept, but after watching this video my all doubt's are clear , i cant even express my felling, Thanks

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Legend is learning this in examination hall !

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Great trick!!! never thought it could be done in such a simple way when I was student,😉 I wish I had got this at that time. 😄

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Thank you so much sir May God bless you with millions of subscribers.🥰

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Wow, this 7 min video just knocked it out of the park for me! Best video for traversals made ever! Thank you for this video.

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Respect you sir soo much. You should be awarded for the best teacher.

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🤓

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legend see before the 1day of exam..................

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me before 3 hours of exam

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Thank you so much, sir. This technique helps a lot.

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Now that is a technique I've never seen before, thank you! It's very helpful.

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Simply superb technique! Hats off to you for simplifying to the simplest possible level 👋👋👋👍👍👍👌👌👌

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EULER'S TRAVERSAL KA NAAM SUNA HAI 😂

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This legend is born to make life easy

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I usually don't comment on education channel but this explanation was amazing,Very simple and clear.

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Thank you so much for explaining our 2 hours long lecture in just 6 minutes very clearly.

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best technique ever I understood at one time thanks sir .

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I wish we had you as a teacher in our college , thank you so much sir 🙏

[@GeekyGrape]

wow, super helpful for us visual learners! really appreciate the help, thanks so much!

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Just after 1 hr my 3rd semester BCA examination will start and I'm so confident after watching this amazing way of finding order Thank you so much sir 💖

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Is this there in 3rd sem also

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Thank you so much for such an amazing technique sir.... You are doing an incredible work for computer science students God bless you....

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awesom trick, after seeing this trick,we will never forget preorder....thanku so much sir,for ur guidance and hard work

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Mera ek problem solve krke dhogi kya Yahi pre order in order ka

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Such a great approach, SIR ,it really saves time while written all 3 traversal.❤

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Me watching just before 15 min of exam😅

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Ohh ! Thank you so much sir. I was stuck at this concept for quite a while, but your easy and simple explanation cleared all my doubts. Thank you once again !

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thankyou so much..This is the easiest way to learn this traversal techniques

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Tq u sir..... Please add more videos on data structures.. It will be helpful... U way of teaching was good... Whenever I listen to your video it is easy to understand

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Amazing trick...👏❤ thank you so much sir

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The best lecture video ever made. You deserve an award

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This was soo easy to understand Now I feel confident enough with tree traversing

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Superb!!! I had never understand that topic entire my btech...now i got this... thanks

[@GateSmashers]

Thank You for your love and support. Bless you

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Exactly same 😂

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Thank u sooo much sir u made me realise that this concept is very easy and the way you taught is quite wonderful keep up the good work,..... ☺

[@GateSmashers]

Thanks and welcome

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The best trick ever came across. A big thank you Varun!

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Thankkkk uuu soon muchhh...❣❣❣ It's my exam tomorrow and I just confused but your 5 mins made it very clear..🙌

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Galgotias??👽

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OMG thats the easiest and shortest way really! Thank you so much! Continue the good job! Greetings from Greece!

[@macaaamala]

YOU ARE THE BEST LITERALLY THANK U SM COULDNT GET BETTER EXPLANATION THAN THIS U ROCK!

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INSANE!! I watched several videos on traversal of trees,this is the best one!

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Thank you very much,sir. Finally I understood this concept by you. I watched many videos before but I learned here quickly and without any confusion.

[@GateSmashers]

Thank you mrunal Mane for such a lovely feedback..

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Thank you very much sir.. Kal mera semester exam h Thanks a million

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Best solution i have seen for preorder,inorder and post order!

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love you sir...ek bar me hi smjh aa gya ...iske phle bht sari videos dekhi thy but aapka ek video batty jala diya 😅❤️❤️❤️

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Amazing 🤩

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how can someone dislike this video 2 minute of silence for them

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I guess they got years in their eyes and misclicked it

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its bot dislikes it is youtube's algorithm to have a balance between likes and dislikes

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U made my worry ease... Heartiest thanks to u.

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the way you explained it that's amazing

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Khatrnaak technique hai

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Literally today 20/04/22 at 9:30am I have my midterm exam ...I saw this content at early morning 5 am ... it was very helpfull ❣️... thank you much sir🙏

[@GateSmashers]

All the best

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Thank you sir 🙏....with regards your virtual student

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really great explanation. Made the tough one very simple. Grateful to you.

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Kis kis layer per kon kon se protocol use hote h g ... Ye video bhi Bana deejiye sir g .... Please please

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Welcome polytechnic boys 😅 All the best for tomorrow's exam 🎉

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Whooo kya samjhya hai apne matlab jo mujhe abhi kat samajh nhi aya vo apne sirf 5 min me samajh diya sir you are great

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Thank you so much sir... It got me hours to understand and was confused .. But because of you I could understand it in a proper , simpler way 😊

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Before 1 hour of exam 😂😂😂😂

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Me😂

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😅​@@VivekKrDev

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Same bro subha paper h😂

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Not sure if its trick or method but you made it really easier 😂

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Its actually a trick. Not the method. 🤔

[@vertigo_57_42]

Thank you for this technique it makes ordering of nodes really simple

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moj la di bhai is lecture ne yaar ye sikhke dil khush ho gya bhaii. was very confused in this topic you just made me clear.

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Is there anyone in 2024😂

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s boos

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The word genius is actually made for you sir... God Bless you.. Keep up the good work... Thank you so much

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Sirrrrr this is the best method i watched other videos but didnt understand but you saved the dayyyyyyyy

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Thankas a lot sir... I was confused in this topic from many days, but now I understand at once through your good explaination..

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one of the best understanding platform , thanks sir

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It helped me to give answers using a proper method... Thanks a lot👍🏻

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AP bht acha smjhaty ko Sachi sabhi lectures AP k leti hon itni achi tayyari hoti hai Mai Pakistan Sy hon hmary teachers tk AP ky lecture dakhty hai ...❤❤❤ .....har chez itni clearly define krty hai bht help hoti hai

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Thank you, Sir, the whole lecture understand in 5 minutes..

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You actually deserve a lot 🎉....tq sir 🙏 i understand my every doubt from your lecture

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Excellent...thank you so much for teaching this

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So beautiful, so elegant, just looking like a wow... Explanation superb sir😊😅

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What a trick bro , NO confusion...!!🥰

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Saved my precious time! Thank you sir

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THE BEST Traversal video on KZbin !! 🫡

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Wow sir you are amazing.. The way of your explanation I just love it.. Don't stop teaching sir carry on we need you as a good teacher.

[@jitendraparmar1153]

thank you sir aapne muze yeh topic sirf 5 min me samza diay lekin college main muze isse sumuzne main bohot time laga tha. your concept is so easy and simple. thank you so much sir.

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Thank you sir for making learning that much easy🙏

[@ashaybhojane]

Great sir. Thank you for the best technique