C_21 Operators Precedence and Associativity in C | C programming Tutorials

[@shivangikumari2231]

--a*(5+b)/2-c++*b --0*(5+1)/2-(-1)++*1 Firstly we evaluated which is written in bracket --0*6/2-(-1)++*1 Now we evaluate postfix increment op --0*6/2+1*1 We write +1 bcz in postfix firsly value assigned then value incremented After postfix increment we evaluate prefix decrement -1*6/2+1*1 We know that * and / has same precidence and associativity is from left to right -6/2+1*1 -3+1*1 We know that +has lower precidence than * then * evaluated first -3+1 =-2 Hence answer is -2

[@acroshubham]

For me it's the ever most helpful comment, that I ever read on this earth. Ya, there are some gems on earth, in which you are the one. Smile because you're unique. Thanks for helping me out to understand it in form of a comment 😊

[@aakashyericharla8668]

can you explain the post fix increment. -1++ is 0 right?

[@shivangikumari2231]

@@aakashyericharla8668 no this is not right bcz in postfix firstly we put value then incremented That means (-1)++=-1

[@kkkkkkk754]

Hi, can u explain what is post increment and dercrement after the step of 5+1 pls. I am school student.. I will be grateful

[@shivangikumari2231]

@@kkkkkkk754 in post increment we firstly assigned the value then incremented. Eg. int a=2; printf("a=%d",a++); It gives output a=2 then a becomes 3. In post decrement we firstly assigned the value then it is decremented . Eg. int a=2; printf("a=%d",a- -); It gives you the output a=2 then a becomes 1. Hints:- Incremented means plus 1 Decremented mean minus 1

[@18fatima15]

11:03 #include int main() { int a=0,b=1,c=-1; printf("%d",--a*(5+b)/2-c++*b); return 0; } output: -2 working: --a*(5+b)/2-c++*b => -1*6/2+1*1 => -3+1 => -2

[@BodhiiDharma]

Shortcut to remember the operator precedence table in C… Use PUMA' S REBL TAC. ( spell "REBL" as if "REBEL"). (Note: all operators with associativity not specified is left to right). P - Primary U - Unary M - Multiplicative A - Additive S- Shift R- Relational E- Equality B- BitWise ( & > ^ > |) L- Logical ( logical && > logical ||) and the last three operators are T- Ternary A- Assignment C- Comma If you need a shortcut for Assosiativity then "AUTo rides in the right side", meaning Assignment, Unary and Ternary operators are Right to Left, O is added for completion)

[@gsharada2910]

Super bro no need to see video

[@vaishnavinalabolu9603]

kis channel se padthe ho

[@mugdhashrivastava]

thanks

[@aayushthakur6159]

Q . --a * (5 + b) / 2 - c++ * b given a = 0, b = 1, c = -1; ans = -2 explaination- firsty bracket will be evaluated so it will give 6 now evaluate --a, it will give -1 since we are pre decrementing 0 now, -1*6 = -6 now -6/2=-3 then -3 - (-1)*b(due to post fix the value of c will remain same ) will give -3 +1*1(since b is given as 1) hence -3+1=-2 ans

[@saikrishna8431]

After brackets c++ na postfix increment has higher precendence that. Prefix

[@sentongohamza7936]

Thnx for ur gd expln abt the c++

[@rutujajadhav1782]

Wrong ans

[@SchooloDoodlo]

He is right you can compile it

[@lyricist3845]

@@rutujajadhav1782 I got -3? is it correct

[@susova2432]

--a will decrement the value of a by 1 and return the new value (-1). 5+b will add 5 to the value of b (which is 1) and return 6. --a*(5+b) will multiply the result of step 2 by the result of step 1, which gives -6. /2 will divide the result of step 3 by 2, which gives -3. c++ will return the current value of c (-1) and then increment it by 1 (to become 0). c++*b will multiply the result of step 5 by the current value of b (which is 1), which gives 0. -3-0 will subtract the result of step 6 from the result of step 4, which gives -3. Therefore, the output of the expression --a*(5+b)/2-c++*b will be -3.

[@ElectricalsSolutions]

but -2 is given by computer

[@sudheerkimidi]

​@@ElectricalsSolutions -3+1 will become -2

[@manojess]

Wrong

[@manojess]

C++ means post increment so value of c used is -1 but in output in you print c you will get zero. In program c=-1 will be used. Now you will get -2 as the answer.

[@nithiya8418]

Mam ur DS playlist really helped me a lot for exam prep... please make a playlist for Computer architecture also mam... the subject sounds so vague pl help mam... 🙏🙂

[@chandrasekharnatukula6262]

👍

[@herteert299]

Your work is awesome Mama. Your courses of the C language are the best I found on the internet.

[@Mister.G181]

--a*(5+b)/2-c++*b here, a=0, b=1, c=-1 --0*(5+1)/2-(-1)++*1 brackets, postfix have the same precedence(highest), therefore we have to go from left to right --0*6/2+1*1 now the prefix has the highest precedence in the above expression, -1*6/2+1*1 now * / have the highest precedence in the above expression, to break the tie we from left to right, -3+1 now + has has the highest precedence in the above expression, -2 We have the values of the variables as, a=-1, b=1, c=0

[@hulkcochulk6486]

int a=0,b=1,c=-1; - -a * (5+b)/2 - c+ + * b.................. ['/ ' is higher precedence than '*'] -1 * 3 - -1 * 1.......................... [value of a will increment first , c is now incremented to 0{-1+1=0}] -3 - -1..................['*' have higher precedence value than '-'] -3 + 1 = -2 ( output)

[@Dr._Aniekan_udo]

Ans = -2 - -a * (5+b) / 2 - c++ * b - -a * 6 / 2 - - 1 * b (#(),++,#) - 1 * 6 / 2 +1 * b (#- -, -,# ) - 3 + 1 (#* ,/ ,*#) - 2 (#+#) Operation done on the previous line is commented with # inside the bracket in the new line, in other of operation precedence and separate by non-computing commas. I didn’t use compiler anyways, but you are free to point out mistakes if found😅

[@omarfaruque1095]

You didn't increment the value of c by 1.

[@Dr._Aniekan_udo]

@@omarfaruque1095 it was a post increment, so c was evaluated before being incremented, as such it remain as -1 as shown in the second line

[@adedejiafeez1238]

@@Dr._Aniekan_udo apt. Followed the same reasoning and compiled to verify my answer

[@kennedychukwu4152]

I think it's after the program runs for the first time, then when it runs the second time it will increment to 1 because it's a postfix. That's how the postfix program runs. If it was a prefix it will increment from 0 to 1 the first time it runs.

[@Narratesmart]

Thank you sir

[@sumitkhursange2673]

Mam your videos is easily understandable for me on KZbin platform... Thank you mam for this course🙏

[@emiliarose1980]

Big thanks to you ma'am , what a smoothness and how u can transmit ur knowledge is just amazing 👏 👌 ❤

[@tusharsonawane3530]

Excellent teaching mam , no words for your teaching

[@tps8470]

Ans is -2 Thanks a lot Mam

[@ElectricalsSolutions]

how i couldn't got it

[@saibalam7852]

Mam ur teaching is marvelous this is what a beginner expects

[@yeshwanthrajsp5876]

teaching "extraordinary, fanstatic and mind blowing mam salute mam😇"

[@whathuh6965]

You're really good at explaining things clearly. Good job.

[@Pramiti_Choudhury]

do we have to learn this???to solve, but how will i learn such a big table? any short trick? like bodmas or something?

[@khushikumari-fun]

-3 will be correct answer.. --a * (5 + b) / 2 - c++ * b given a = 0, b = 1, c = -1; --a * (5 + b) / 2 - c++ * b -1*(5+1)/2-0*1 (--a becomes -1,The value of a is updated to -1 becuase its a prefix dcrement and c is postfix increment so it will be update -1 to 0). -1*6/2-0*1 -1*6/2-0 -6/2-0 -3 ans................

[@TechR2545S]

Correct

[@MINHAJ_MJ]

Compiler Answer : -2 but what i understood from your lecture: int a=0,b=1,c=-1; int k= --a *(5+b)/2-c++*b; --a *6/2-c++*b --a *6/2-0*b -1 *6/2-0*b -6/2-0*1 -3-0*1 -3-0 -3 tell me where i am wrong??

[@yashkumar-lg1jq]

You didn't take c++=-1

[@ankitrawat978]

@@yashkumar-lg1jq why? c is already -1 .and after c++ it becomes 0

[@yashkumar-lg1jq]

@@ankitrawat978 bhai post increment hai

[@kannakavyareddy6685]

Yaa i got the same answer

[@sanatanmahato7341]

-2 is my final answer a= -1 b= 1 c= 0 If it is right please let me know jenny mam

[@BITPrateektrivedi]

Waiting from last 5 days.. Happy to see you in my notification 🙂🙂

[@sagar1216]

Videos are good as talking about the explanation, but I am wishing project based tutorial as these videos totally like as some online Computer Engineering Quick Guides. If you could do it I would be very thankful to you ,MAM!, as I am just in 9th. Please..

[@chandrashekarr1977]

Nice one. Thank you. This part need more clarification and workouts as most of the entrance exams have bunch of questions from this area. To my knowledge, none of the books in market covering this area fully. There is always a grey area where people get confusions. If possible, please comeup with more videos with more sample questions from placement question papers and show with step by step explanation in detail. Thanks once again.

[@Ganesh222]

You are a very experienced and skill in teaching mam .... really

[@walkwithme_P62]

a=o b=1 c=-1 --a*(5+b)/2-c++*b =0*6/2-c++*b =0*6/2-2*b =0-2 =-2 Ans is -2 Thanks ma'am

[@anjanhalder7164]

Post inc. Will increase value after that statement... That's why -3

[@VishalAwati18]

@@anjanhalder7164 can u plz elaborate? My output is just showing -2

[@anjanhalder7164]

Ans is -2. I was wrong.

[@farzanaashraf8136]

@Prajwal @Anjan Halder @VISHAL AWATI Please tell me about the --a when the a is an integer and it's value can be -1 after the --a?🤔

[@Rajendra_kumar39]

Wrong

[@HariomSingh-nc6uh]

Maam u r soo cute And through your teaching pattern I'll learn more and more.... U r amazing😍 Love from FoET lucknow CSE(AI). ❤

[@girishkulkarni3537]

I have seen c programming topic video. Amazing presentation.

[@memcraft_2511]

Thank you so much mam aap kitna hard work karti h mam

[@hiriharanvm5568]

int main() { int a = 0, b = 1, c = -1,res; res = --a*(5+b)/2-c++*b; printf("%d",res); return 0; } ans is -2

[@chaitanyapaidi7396]

I just watched your previous videos of many months before and you know what you have become chubby and cute 😍😍❤️.....love from South India ❤️❤️🔥

[@adityaprakash6248]

I could not solve why when a=0, b=1, c=-1 why --a*(5+b)--c++*b comes out to be -2

[@hadieudonne433]

Welcome Back and HnewY 2021 Lecturer Jenny, wish you higher advancement in this year and I promise you to be a good programer because of you. Step by step any thing is possible

[@hadieudonne433]

Thank you so to press like on my comment, now I want to invite you if possible to press follow on my instagram which is instagram.com/hadieudonne43 🤦🤦🤦🙏

[@prakashvenkat7630]

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[@tellalavanya3819]

answer is -2 mam for the last expression

[@shrur3527]

dear mam thank you will be very less for your videos , praying for all happiness n success to u n to ur family , i m benefited a lot by your videos , you are an excellent teacher

[@archittiwarii]

Mam thanks 😊 . I m beginner 🔰 mam give a video how to start

[@karthikpendem7085]

a=0; b=1; c= -1 --a×(5+b)/2 - c++ ×b Solve the above question according to C programming The answer is -2

[@maryannemuthoni5388]

int a=0, b=1, c= -1; --a * (5+b)/2-c++*b Start with brackets and postfix --a * 6/2 - -1*b Move to prefix -1 * 6/2 - -1*b Move to multiplication and division -3 - -1 -3 + 1 Answer is -2

[@freakraajpubg2626]

Watched your whole ds algo videos... Really helpful for me.. Keep making such videos🙏

[@brindhavenugopal4395]

12.30-( answer is -2 mam)

[@sumitbadola2976]

Can u explain?

[@shacks05]

I kindly Request . To Pls Make Videos on Python As soon as possible mam ❤️ . Because we are Addicted to u 🙏☺️

[@manvendra91102]

Best teacher ever

[@d.shabanaz337]

Sister plz Jarvis Al tell us how to do as your teaching is very understandable and interesting and easy to learn

[@shivamsnehi6130]

🤣🤣

[@amankumarsingh4924]

Mam aap English kitna simple bolte ho 👌👌🤗🤗

[@nasirrashid7898]

I usually watch your videos they so well and I like them. thanks so much. I would ask you do you know anyone who would teach me data structure and java programming. I'm going to pay for the service.

[@chinnulohithh1887]

Mam can u give a more clarity about postfix and prefix with an example

[@musiclovers11706]

Mam u r so pretty..❤ and a good teacher also..😊

[@sanusain4989]

Mam discuss about Python course step by step please.....🙏🙏🙏🙏🙏

[@kalisthamary1919]

Very use ful I need online ' c 'course

[@kalisthamary1919]

How run the c program in system

[@RaniChoramale-e5w]

a=0 b=1 c=-1 --a*(5+b)/2-c++*b ans=0 I dont no answer is correct . jeeny mam please the separate voide

[@priyanshunandan9648]

Great Guide ma'am Keep Spreading knowledge 🥰

[@MathsCuber]

mam what about the precedence of this expression? int a=5,b=4,c; c=++a||++b; printf("%d %d %d",a,b,c); i get the answer as 6,4,1?? Then why precedence is not followed??

[@surendrapuppala1607]

Best teacher i have ever seen

[@handekarilingojivarasaikri782]

--a * (5+b)/2 - c++ * b Value will be -2

[@abhirajvv7994]

How please explain

[@learncseasily3385]

Areh i compile this code in my laptop it is coming as 1 ..i didnt understood how 1 is coming

[@handekarilingojivarasaikri782]

@@learncseasily3385 Its -2 not 1. You might have compiled it wrongly.

[@learncseasily3385]

@@handekarilingojivarasaikri782 yes yes i got it by mistakely i have writen -a instead of - - a 😅

[@prakashvenkat7630]

kzbin.info/www/bejne/p3qVaph3ncl9f8U

[@TheExpeditionMindset]

so basically we check the associativity (if of the same priority) from the expression

[@adarshsensingh]

Mam how to decide the step is L to R, or R to L if both associativity is involved in ques

[@nukavarapusrikrishna714]

Tq mam clearly understood 😊

[@xiiscb-42subhalakshmisarka41]

Am getting -3 as the ans

[@devilaj1021]

Mam please check priority of postfix (++ and --) is left to right or right to left?????

[@farzanaashraf8136]

Left to Right

[@prathamshirke7450]

Mam add more languages like C++ and JAVA please

[@caymannvelingkar7369]

Is FINAL answer -3?

[@1shAggarwal]

Mine is -1

[@dharaneeshwaranr3591]

Super bro

[@shivatapasya1910]

Bro explanation pls ?

[@Abraham33286]

-3

[@bswetha16]

-3 ans

[@syedalifathimaa9618]

output=> a has -1 b has 1 c has 0 result has -2

[@ramakrishnakota7523]

Hii

[@ramakrishnakota7523]

No we get c=1

[@TUCSARVINDKUMARS]

I was learning from u r vedios only mama

[@prakashvenkat7630]

kzbin.info/www/bejne/p3qVaph3ncl9f8U

[@Kulgt]

Happy New Year Madam G.. Thanks Jii

[@user-kb9tz7pp9y]

Pls post the lectures in bulk!!!!if possible!!and u r the best after shukla sir!!

[@RashidKhan-wj7cp]

Who is Shukla Sir ? May I know the channel name ?

[@aadixya]

@@RashidKhan-wj7cp kzbin.info/door/D-scAE4ju78dld1kpcsQfQ

[@rajshreesharma6778]

ans = -3 is it right ?

[@rogue.freaks9860]

Mam why the associativity of ?: is right to left in ternary operators we first check condition which is left to right

[@d.shabanaz337]

Sister after c++ course jarvis Al mam plz

[@AnshuGiri-zq5ug]

Thanks maam❤

[@1shAggarwal]

You have a great way of teaching but i want to say that I laugh 🤣 when you scream 'now' out of nowhere 😆.

[@aahmad83]

😂

[@Chris-vt6nl]

😂

[@melkamuteshome8449]

🤣

[@stylingdancer6619]

Thank you mam for the owsmful video🙏❤️

[@uttej1390]

Mam next course plz add c++ course mam 🙏🙏🙏

[@uttej1390]

Thank u mam for 💓 💓 💓

[@PalyamYashwanthsai]

Answer is 2 madam

[@deepakkumars5608]

-2 is correct I'll be verified with complier

[@mhullash2383]

How? Can you explain?

[@krupa1963]

12:40 Answer : -2

[@shoba2212]

Can u explain?

[@vaibhavsinhbihola1]

It is right answer

[@sankalpphadke4938]

@@shoba2212 -1*6/2-(-1)*1 -1*6/2+1*1 -6/2+1 -3+1 -2

[@madhukasturi9953]

C has postfix increment then y it still be -1, the value must change to 0 I guess..pls clarify

[@charanp970]

@@madhukasturi9953 yeah I think ansr is -4

[@prathamshirke7450]

Commenting uh first because in all crowd I get vanished and ignored and always I praise uh but I get camouflaged

[@dharanidharani2496]

Mam the final answer is -2

[@karthickambrish]

Awesome sister.... After C language kindly update a Playlist on oops based language C++ that would be more helpful sister... Thank you..

[@sistlachaitanya1222]

Hatsoff for ur hardworking.

[@yogasankar2032]

Madam please upload solving towers of honoi problem in data structures

[@Rockyyyyyyy524]

Super teaching mam

[@prakhar381]

Thankyou very much❤️

[@farhanpathan4167]

How can we understand between uneary + - and binary + - how can we find difference

[@CEIT-RANJITHR]

9*6/2+1=28

[@MahirRashid-ih1nz]

thanx you are great well madam.....

[@deeprabasak345]

-2 is ans ....checked in ide

[@jackbhai-j8u]

Mam please discuss more examples on this topic 🙏🏻

[@granderuhu]

Anybody has a good example for that postfix operators have higher precedence than prefix operators which would give wrong result when postfix and prefix is thought as they have same precedence?

[@036rahulmishra9]

Nice maam ur inspiration for me

[@anjanhalder7164]

What is the output? Mine is -3

[@ayushibawari]

yup

[@sahilyadav2146]

-2 is the output

[@mani6896]

@@sahilyadav2146 is that correct

[@sahilyadav2146]

@@mani6896 yes

[@pragathi068]

I too got-3👍👍

[@hardik8974]

Ans is -2.

[@CitizenWarwick]

Hey Jenny did you make a video how to deal with functions? Thanks!

[@SahasraMuthyam]

What is the difference between uniary + and binary +

[@subhashreeswain1]

Answer will be -2 Mam plz reply me wheather it is right or wrong

[@radhagoyal3606]

I got same ans

[@anjanhalder7164]

-3

[@Vanisingh03]

Thanks a lot ma'am 😍😍😇😇

[@saikiranreddy8135]

Mam do videos on python programming language

[@laksh2626]

a-b/c(c*d$e) mam how to solve this question 🤔 does * and $ have same precedence

[@kakhil1843]

super i love you for ur teaching🥰🥰🥰🥰🥰🥰🥰🥰

[@everyone307]

Good explanation mam

[@Rockyyyyyyy524]

My thanks goes to u mam