3.8 Infix to Prefix using Stack | Data Structures Tutorials

[@alixaprodev]

*I am always feeling bored while watching tutorials online but your style of delivering lecture is somehow different. Thanks Ma'am and keep continue. I think that i am not the one who fall in love with your lectures.*

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i feel the same! her 20 min lecture can be finished in 10 mins too!

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[@Arsh-kd4cq]

@@nazansari9902 * (your text) * remove space b/w asterisks

[@nazansari9902]

@@Arsh-kd4cq *thank you*

[@nazansari9902]

@@Arsh-kd4cq *I got it*

[@thethinkinlad]

BRUH this video actually saved me for my coding assignment (use a stack to convert an infix string to prefix). ALL the coding websites claim that all you have to do is reverse the string, then do the usual infix to postfix conversion, then reverse the resulting string. What they DON'T tell you is that you do NOT pop operators of the SAME priority. All it took was a quick skim through your video to figure out what had gone wrong. Thanks Jenny!

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Thanks mam for saving our time and money ...I prefer all of my friends to watch your videoes ..you are the only one who care about us

[@programmerji3113]

First of all a great great thanks to dear Jenny Teacher. I salute her for teaching such a tough topic of DSA in very simple and easy manner. When I was in class 6th I use to think how to solve a math expression in Java and C . Then when I learnt the INFIX prefix and postfix then I coded my own mathematical Calculation Program in C++. Thanks once again mam for your great help by teaching. I salute you mam ⭐⭐⭐⭐⭐ Thanks **100000000... Times thank you

[@usmanweb]

dear sister, you have explained each and everything in a perfect way, earlier I was having a lot's of doubt in "infix in prefix" but you cleared. You are the excellent teacher of Data Structure. Thank you so much to make a video on this topic.

[@kd_bhai35]

Nikal l

[@khushigarg5397]

Speechless , what's the explaination, heads off to u ma'am!

[@kyliemun2681]

wow it is so clear explanation. i hope you keep making new videos. you saved me !!!!

[@testaunni1284]

you are the gem....i was not aware of associativity so was getting wrong answer ... now it is clear..thank you very much

[@binduaradhya3514]

I have exams in 10 days. I did not understand anything when my clg faculty was teaching....but now after watching your videos data structures has become my favourite subject. Thank you so much ma'am.

[@shreyasambhaikar9600]

Mam ur teaching skills are really very good. I understood each and every topics that u taught. Keep it up👍

[@SAM-uy2ek]

Q

[@ramyas355]

Thank you so much ma'am 😊 I found it very helpful I was confused when it was thought in my class (online classes) but after watching this video all of my doubts got cleared

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@Sagar . tharki saala 🤣🤣🤣

[@vigneshdy7151]

World best teacher 🎉❤ very thankful to you madam our college was do this data structure in just 3 days we won't understand now there will be an exam your videos are very helpful to me thank you so much madam 🎉

[@anitamatthew4409]

You are the best teacher I have listened to

[@vatsalpagare6935]

After watching your video of conversion of infix to postfix I was able to write the code on my own using your algorithm..... Thanks and present mam😊🙋🏻‍♂️

[@zinebboukouiss2445]

AAYUSH PAGARE hey can you please send me the code if you still have it !! Thank you

[@introvertzmotivation5632]

I can't thank you enough ma'am I was struggling with this prefix thing very bad.... Thanks a ton

[@ritikasharma2513]

Thnkuuu dii for making this video ... seriously Ur way of teaching is sooo attractive which is easily understandable

[@shahidjaved6407]

But I can't understand

[@csmuffins3588]

Thank you ma'am!🔥this is the first clip for clearing my doubts for infix conversion🔥👍🏻

[@wasit-shafi]

soon ur going to dominate other CS channels if u continued making more videos...keep it up

[@ritik_ken_001]

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[@elatedvids7354]

thank you for helping me. I followed your many videos. God BLESS YOU.

[@mohamedkanu66]

Thanks mam. Minor mistake in d stack conversion to prefix. It left out the U after reversing but it's ok. You are super excellent mam. You have saved my life for good

[@maulikvaghela2971]

Above Infix equation to prefix conversion start from 05:26

[@tendaindagurwa3605]

thanks for your contributions. i love you Ma'am. keep continue with your hard work, and you are helping me a lot. God bless you.

[@santukapri2409]

I think after watching this video there is no doubt for any student like me on this important topic.

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And you are doing great job , i have become your fan from when i saw your first lecture, which was about patterns of C language. Keep going on.

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[@gueshteklu8624]

Thanks My Lovley Teacher For Your Great Contribution To develop My Attitude In DS!!!!!!

[@arvindkumargupta8856]

Ma'am you have not written 'U' in the final prefix expression..you have explained very well.. thankyou

[@sadiakiran6695]

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Thank you ma'am for this, Tomorrow is my DSA exam, thank you for the last minute preparation

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[@6020Bhupendrasingh]

Thank you very much mam I was making mistake in due to associativity, Thank you I got it now

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[@dineshkumarsingh8079]

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[@vaibhavsingh2209]

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[@wajdanakmal8325]

In the final expression and reverse of expression, you have forgotten the "U" lying between the W and V in the expression.

[@piyushbedre3769]

mam is always right

[@ghimasree2607]

Yes she forgot the U lying b/w "w"&"v"

[@novinjeno7981]

Instead of focusing on that U that maam has left , focus on you .she made you understand the concept that is why you are able to point it out.

[@sv798]

True

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Ma'am your explanation is unbelievable.... thanks a lot ma'am 🙏❤️

[@KeerthiKaturi-u6r]

superb explanation mam❤😍

[@enter10mentchannel26]

A small mistake ma'am in this video. After getting final answer using algorithm you forgot to write "U" i.e. in the end it will be "OPWUVTQ" but you have written"OPWVTQ".It's somewhere between 13:00 - 15:00

[@akashlenka4068]

Yeah bro that was a mistake

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[@GoodVibes-xp6pv]

Finally, cleared the concept !! 👏🏻 only U is left 🤭🤭 to write as last after scanning all ! But it’s totally understanding

[@sandeepkumarthakur7368]

Thank you ma'am I wish you were the faculty of our uni..

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wow ..tomorrow is my exam ..and today I get the video

[@srijitanitamajumdar5904]

Ma'am, in your previous lectures you had taught that if both the incoming and the 'top-of-the-stack' operators have the same precedence and thereafter associativity of 'Left-right', then we need to pop the top of the stack before storing the incoming operator. But here in the 8th step, you pushed the incoming operator instead.

[@dominicpeng8802]

that should be the infix to postfix case because in the prefix case you are scanning the string reversely which leads to reversed associativities rules

[@gracenote108]

@@dominicpeng8802 So I'm actually wondering the samething. Other guides say that we should follow the postfix style operator associativity rules since we already reversed the expression.

[@ZahidHasan-sv2sh]

what if right to left associativity in case of infix to prefix

[@matthewadams4097]

Guys, basically if you're just doing infix->postfix you just loop the condition while (precedence(operator) top) pop finally push if doing infix->prefix, reverse the string and then do the same process as postfixing but instead the condition for operators is while (precedence(operator) < precedence(operator at stack->top) pop finally push (At the end reverse again) Hope this helped

[@user-oc8cr1ib2u]

thank u so much ma'am i really like ur way of teaching and finally understood both of the conversations; infix to postfix and prefix

[@mr_editor_719]

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[@sumitsinghGYMvids]

Feeling sad for 'U' in the final expression😂.....jokes apart....nice explanation ma'am....thank you..

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genuine teacher #respect

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nice mam , concept cleared.

[@pranavsarate376]

22:23 most important part of video

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Nice video ❤❤

[@adityashekharsingh2669]

brilliantly explained thank you mam !

[@muztahidhassan7165]

Mam, your lecture is very helpful. But you missed the 'U' operand at 13:59. Thank you.

[@ashutoshshukla5581]

at 13:52 you missed "U" in the expression. Anyways nice explanation ma'am!

[@rohitpawar5604]

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6:21 and here we have a QT .😂. APART FROM JOKE. Great lectures.

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[@gauravmehra2472]

Check once : if peecedence of both opeartor are equal (incoming operator and top of stack operator ) then we ahould follow same rule given for infix to postfix conversion .

[@ShaikksuhilIrshadBEC]

no .. for knowing that rule go to infix to postfix video