one thing i want to add: mere jese slow learner ko jab koi kuch concept samjhaye or fir programme likhne k baad usi chiz ko dubara samjhaye pura no words for this thank you so much
@severemage33742 жыл бұрын
0:49 linear search 3:30 binary concept 8:00 binary code
@@ThunderBladeZen Hum har jagah par hai 😁! Ashirwad bhava
@singh_043 жыл бұрын
where is neha search ?
@shreyaschavhan55223 жыл бұрын
@@singh_04 Neha Search - Concept: Sabka Katega Neha Search - Time Complexity: 6 to 12 months Neha Search - Conclusion: ____________! (Fill in the blank)
@manitsaharan59953 жыл бұрын
Bhai ye code glat h chal hi ni mera binary search wala
@shreyaschavhan55223 жыл бұрын
@@manitsaharan5995 Correct hai Bhai! Ek baar phirse dekho kuch mistake ho rahi hogi apse
@kiranp58284 жыл бұрын
These guys are just amazing.And they were doing such a great work. They were giving a very quality education for free. Please guys support them all.🙏🙏🙏
@CSSqlJq Жыл бұрын
Mam you are really god for us, likes poor and middle class background students Your technique of teaching is just amazing your video makes easy to understand any topics...tqqqq my fav mam
@priyamondal61774 жыл бұрын
Best video ever. Thank you mentor and Aman dhattarwal for this awesome contribution to the society. More power to all the members of Apna College.
@kpsaini4043 жыл бұрын
Explaining Binary search complexity is awesome. I like it
@CricketLover-kc6ln4 жыл бұрын
Man with the mission 🔥🔥🔥❤️
@jaiveer93064 жыл бұрын
Like Elon musk 👻😉🤣🤣🤣
@CricketLover-kc6ln4 жыл бұрын
@@jaiveer9306 😀😂
@pep82214 жыл бұрын
@@CricketLover-kc6ln Tera aukat bhi nahi h Sharda jaise prestigious university me admission lene ka
@pep82214 жыл бұрын
@@CricketLover-kc6ln Tera aukat bhi nahi h Sharda jaise prestigious university me admission lene ka
@Shubham-rv5cm4 жыл бұрын
Man on mission
@devilhunter81204 жыл бұрын
8:52 the value of e = n-1, because the indexing starts from 0.
@jasmeetsinghvirdi773 жыл бұрын
Yes even I noticed the same thing.. Kindly update if we are wrong.
@aryansaxena49783 жыл бұрын
actually it could be either of the values, cuz vese b hamein exact mid point ki zarurat nhi hai. baad m to check krna hi hai ki key midpoint se bada hai ya chota hai.
@hemasingh56683 жыл бұрын
No...I think over here because as s=0 and e=n so when you will do (S+n)/2=(0+n)/2 will give exactly half of your array but if you do(0+n-1)/2 you will not get exactly the mid of the array.please think again.
@aryansaxena49783 жыл бұрын
@@hemasingh5668 yeah that is true but there is really no need to find out the exact mid point ryt? Lets assume array 6 size ki hai. (0+n)/2 krte ho to mid point 3 index p ata hai. (0+n-1)/2 se mid point 2 index ata h. And in either of the cases u ll be checking whether your target element is before that index or after that index. N time complexity is also the same in both cases. So the answer ll be d same either way.
@harshvardhankushwaha30003 жыл бұрын
gives same result either
@astatosiseverywhere3 жыл бұрын
whenever mam say 'thik hai' i feel very good
@rutvikrana5124 жыл бұрын
This approach of problem solving is called "divide and conquer". As we are dividing our array into halves. Another examples of D&C : - finding GCM ( greatest common divisor ) - merge sort and quick sort algorithms binary search will only work if array is sorted. This should be in mind. The same example of the video can be easily written by Recursion. binarySearch(int arr[],int item,int l, int r) { int n = sizeof(arr)/sizeof(arr[0]); int m = (l+r)/2; if (m < 0 || m> n-1){ return -1; } if (arr[m] == item){ return item; } else if(arr[m] > item) { return binarySearch(arr,item,l,m-1); } else{ return binarySearch(arr,item,m+1,r); } return -1; }
@kushagra03474 жыл бұрын
What is l and r representing?
@fundekaustubh4 жыл бұрын
@@kushagra0347 l represents the left-most index of the half that is to be searched and r represents the right-most index of the half that is to be searched. Initially while calling the function, l is 0 and r is n-1.
@kushagra03474 жыл бұрын
@@fundekaustubh Thanks Mate💯🙌🏻
@be_calm23724 жыл бұрын
Good ❤️
@sohanjangid12074 жыл бұрын
@@fundekaustubh can we assign first array index as '1' or it is necessary to assign it '0'. Here she use n but that mean that she is assigning first value as 1.
@sanketkumar094 жыл бұрын
Well done bhaiya We love you and always support you
@pep82214 жыл бұрын
Tera aukat bhi nahi h Sharda jaise prestigious university me admission lene ka
@ashisharyan30284 жыл бұрын
@@pep8221 good joke bro .... sharda prestigious h
@pep82214 жыл бұрын
@@ashisharyan3028 yesss very much. Even more prestigious than Harvard.
@ashisharyan30284 жыл бұрын
@@pep8221 lol bhai meri toh fir aukaat hi nhi h.....merese toh 12th pass hi nhi kiya hoga
@pep82214 жыл бұрын
@@ashisharyan3028 koi baat nahi bhai. Agar sharda university me admission nahi hua tho tum koi aur university jaise ki Oxford, Harvard ya Princeton me admission lelena.
@SakshiPatil_4 жыл бұрын
Thankyou so much for your efforts ❤️❤️ and urvi di apa bahoot jyada accha sikhate ho please apa hi sikhana ye pura course muze apaka sikhaya jyada accha samajha ata hai . Love you ❤️❤️❤️
@SUJOYPAULJOBS4 жыл бұрын
linear and binary search bohot easy ....and MAM EASY TO TEACH C++...NICE
@sagarrajkumargupta51683 жыл бұрын
your teaching style is quite good and i want notes of this lecture. i saw previous request for notes But you didn't upload on this video. kindly upload the notes as soon as possible its my humble request to you. Keep Growing.
@aestheticsurdu59753 жыл бұрын
Watching From Pakistan Love this Channel
@aryansharma-wf8sn4 жыл бұрын
Urvi di aap hi baki lectures bhi lena you explain these concepts very easily 🤩😍
@LifewRoshu3 жыл бұрын
Thank you so much AMAN BHAIYA and the whole team of APNA COLLEGE ❤️❤️✨✨
@bengaltiger38904 жыл бұрын
Everyone is first until you refresh 😂🔥
@arunmaity4614 жыл бұрын
Han..ekdom😂
@pep82214 жыл бұрын
Tera aukat bhi nahi h Sharda jaise prestigious university me admission lene ka
@pep82214 жыл бұрын
@@arunmaity461 Tera aukat bhi nahi h Sharda jaise prestigious university me admission lene ka
@arunmaity4614 жыл бұрын
@@pep8221 tum kon hote ho..mera aukad judge karne wala? Aur maine aisa kya comment kiya jisse tum mera aukad estimate karoge?
@arunmaity4614 жыл бұрын
@@pep8221 aur aisi arrogant stupid idiot ki tarah behave mat karo..isse tumhara khud ka hi respect girega dusro ke saamne..tumhare mata pita kya is tarike se tumhe logo ke saath behave karna sikhaya hai?
@tathagata_ghosh_144 жыл бұрын
Urvi di rocks man!!!🔥🔥🔥❤️
@vishalprajapati12084 жыл бұрын
Bhai madam ka pura name or insta account ho to do na , please 🙏🙏
@21ishansharma823 жыл бұрын
@@vishalprajapati1208 urvi goel!
@couldbenimish4 жыл бұрын
Addition : : Binary Search applicable only when the given array is sorted. If not, we first need to sort the array and then find the element using the binary search function.
@---UNDEMODUGULANIKHILTEJA3 жыл бұрын
Yeah...
@manasmj Жыл бұрын
5:10 pe bola toh hai, addition kis baat ka
@itsprincegaming Жыл бұрын
@@manasmj imp thing ti remember
@itsprincegaming Жыл бұрын
Thanks
@manasgupta6647 Жыл бұрын
@@manasmjexactly 😅
@prathitprasad3 жыл бұрын
I use Java but still this explanation was too helpful Btw no Nehas were harmed while making this video
@atomicity.probably2 ай бұрын
It's sooo much simpler than I had thought, thanks!
@RiyaSharma-gm5om4 жыл бұрын
Truly amazing content, I just love this series.
@HamadKhan-k5xАй бұрын
loved your easy method of teaching,,,,very nice
@361-shashankgupta33 жыл бұрын
Binary Search works in sorted array only. We have to sort the array first in ascending or descending order if the array entered in unsorted . Linear Search is better for unsorted array
@Samconery2 жыл бұрын
why is that the end point is n and not n-1 when we keep the start point as 0?
@CyberrBoss3 жыл бұрын
Your pace and voice is so good, it helps to get understand the concept very easily. Thanks
@oli13464 жыл бұрын
This video is well animated and explained nicely! please follow this order
@mukundkumar34003 жыл бұрын
I always forget about hitting the like button nevertheless I love this series
@priyanshuadhikary89154 жыл бұрын
There is one mistake in last time complexity that after K iterations ,the length of the array becomes = n/2^(k-1)........(12:17)... I hope , I am right since you are a wonderful teacher and because of you I can find the mistake and can correct it.....
@jatinkumar-bd2nw4 жыл бұрын
You are right brother
@bdbrightdiamond4 жыл бұрын
No the mistake is at first line, after first iteration length of the array becomes n/2 and not n
@snehilsinha46894 жыл бұрын
there's no mistake at all. The array size starts from n and after the iterations start, it becomes n/2, n/3, n/4... n/2^k. Note here that k is a random number and not according to the pattern you are thinking which makes it (k-1). Let's say (k-1)=k'. In the video k' is the k. You can co relate this with principal of mathematical induction where we assume the expression to be true for any random k and not some k as per some pattern. And for those who are saying after first iteration array size should be n/2, that's true but the point is that we have to consider from the point before the iteration starts for calculation of time complexity in which case the size wil be n itself. So apparently there's absolutely no mistake in the video.
@SudeepJoshi224 жыл бұрын
@@bdbrightdiamond That's Correct...👍👍👍👍👍👍👍
@prashantdeveloper73544 жыл бұрын
@@snehilsinha4689 you r right... But it should be n/2,n/4,n/8....
@talkwithrd56974 жыл бұрын
Great... Kisi ne itna easily nai samjhaya Thank @apnacollege
@adityadeepak56864 жыл бұрын
didi saying "thik hai" is op !!!
@rajgupta65214 жыл бұрын
After k iteration ,length of array=n/2^k-1 As In 1st iteration length =n/2^0 In 2nd iteration length =n/2^1 So In k iteration length =n/2^k-1 It is simple gm series
@tulsidas29084 жыл бұрын
Exactly
@chiragsharma53873 жыл бұрын
1st iteration ke baad n/2 hoga kyuki phli baar jab function run hoga to (s + e)/2 se run hoga, so kth iteration n/2^k hoga
@sagardas29243 жыл бұрын
Yess! Toh pehle n hi hain array size. First iteration ke baad n/(2^1) and so on!
@mehaseeburrehman2 жыл бұрын
Your teaching style and voice is quite good.
@tayyabali36042 жыл бұрын
Thank you very much for this DSA course very easy and simple way to learn
@dm014173 жыл бұрын
That "Theek Hai" hits on another level also kya awesome bandi ha yrr as in your voice is very sweat. Buddy Loved the way you teach xD xD !!
@rajeshjha68014 жыл бұрын
Bandhubud aur budbak me apna school tha AUR yaha pe apna college😍❤❤
@pep82214 жыл бұрын
Tera aukat bhi nahi h Sharda jaise prestigious university me admission lene ka
@me-oniichan4 жыл бұрын
@@pep8221 kahi bhi kuch bhi likh rha hai kya tu
@puneetchhabra25784 жыл бұрын
@@me-oniichan ye spam krra h pgl
@rajeshjha68014 жыл бұрын
@@puneetchhabra2578 haan
@mr.techoorienter3 жыл бұрын
Aman bhaiya = indian elon musk in education..❤️🔥🔥🔥
@GURU-lz1iw3 жыл бұрын
dd, ek baar dekhna... doubt tha... time complexity of binary search mein... after 3 interation length of array is n/2^3-1... so after k interation it should be n/2^k-1... so after calculation time complexity should be log2n with base 2...plz clear the doubt.... btw thanks for the course to every member... lots of love❤❤❤❤
@xpt5oo1862 жыл бұрын
base is ignored while calculating complexity as log base 2 is same log base e / log base 2 and we ignore the coefficients of terms. Here log base 2 is ignored.
@K-EC-AmanKumar2 жыл бұрын
constant to be ignored so K = log n + 1 would be same as K =log n
@shivammishra97332 жыл бұрын
This is a best course of C++ and DSA
@abdurrehmanali38513 жыл бұрын
There is mistake in finding time complexity of binary search. After 1s iteration our array size has reduced to half but in video they took full size of array . This is the correct form of solution Time complexity: After 1st iteration ,lenght of array = n/2 After 2nd iteration ,lenght of array = n/4 After 3rd iteration ,lenght of array = n/8 After 4th iteration ,lenght of array = n/16 After kth iteration ,lenght of array = n/(2)^k Let length of array becomes 1 after kth iteration n/(2)^k = 1 n= 2^k log2(n) = k log2(2) k = log2(n) Time complexity = log2(n)
@zishanali94612 жыл бұрын
F bro even on GFG they have also given the wrong soln
@PrithaMajumder Жыл бұрын
Thank You So Much Apna College for this amazing lecture 😊
@rakeshkumar0154 жыл бұрын
12:11 --After k iteration,i think length of array becomes n/2^(k-1)🙄🙄🙄
@bharatsinghrawat45363 жыл бұрын
true
@rounaksinghbuttar90833 жыл бұрын
I was specifically searching for this correction
@kamalchakravarathyrachakon99713 жыл бұрын
Yeah..you're right.
@janvimyadventures13103 жыл бұрын
There was some mistakes 1-n/2 2-(n/2)/2=n/2^2 3-(n/2^2)/2=n/2^3 . K-(n/2^k)
@janvimyadventures13103 жыл бұрын
Actually 1 was taken wrong
@barfy.man36244 жыл бұрын
Kya mast Kam krte ho maksood bhai
@GeshuLin_WW3 жыл бұрын
After K iteration, the length of the array should be n/2^k-1
@nikunjgaming95903 жыл бұрын
Yes
@techeduidea25983 жыл бұрын
Yes
@rameshmalhotra95253 жыл бұрын
kzbin.info/www/bejne/a3fWepRqgtVmntE
@ayushdey65032 жыл бұрын
Same doubt
@gagaguguu2 жыл бұрын
It doesn't matter. Its like subtracting infinity by 1 So infinity - 1 = infinity So N/2^k-1 = N/2^k Because N is dominant and can be value equal to infinity
@nainika.s65724 жыл бұрын
Well done bhaiyah you are the best and your whole team is also best
@tejasvitarone55863 жыл бұрын
Very Important condition for Binary search is that Array should be sorted But in your code there aren't any lines which shows that.if before searching we code for it then it will be better for unsorted input array also.
@nishant98472 жыл бұрын
hnn we can write a seperate function for that
@MtlbKuchBhi1212 жыл бұрын
Because she already has taken sorted array from user.
@AryanSingh-xx8lc2 жыл бұрын
Ma'am ki awaz se pyaar ho gya
@kunal18984 жыл бұрын
Shraddha Di.. you rock🔥
@hspianozone13374 жыл бұрын
Sab samaj aa gaya now I am confident about c++
@hifzahabid85542 жыл бұрын
you way of explaining things is awesome but just try to explain even more deeper because we are beginners
@unkownboy99622 жыл бұрын
🙂han na aksar cheezay uper sy he guzer jati hai
@EverythingaboutTechPro4 жыл бұрын
The time complexity of Binary search is not really O(logn ) because the array was not sorted . SO if i have to sort the array as well using Merge Sort then the time complexity becomes O(logn + nlogn) = O(logn) ... So if it's unsorted then time complexity is O(nlogn) .
@shubhambhardwaj88944 жыл бұрын
Awesome lecture, thanks ma'am❤😊
@dipanshi15883 жыл бұрын
0:47 agar nahi milega to minus 1 kyu karna hai return..?
@harshulagarwal17554 жыл бұрын
Bhaiya ads daal dete vids mein. Kam se kam kuch support toh milta hamaari taraf se. Thank you so much for this course 🙏🙏👍👍
@last_countr_4 жыл бұрын
Level of explanation aag aag aag 🙏
@SonalDhani4 жыл бұрын
Konse angle se
@last_countr_4 жыл бұрын
@@SonalDhani animation ke angle se🤣🤣🤣🤣
@VikasSingh-pw5iz4 жыл бұрын
Are ye didi konsi h, she explains really well. Thanks for the efforts
@saudaminisahu90602 жыл бұрын
@Apna college The length of array after k iterations would be n/2 power(k-1) (in the concept of finding time complexity of binary search)
@ManognaThota4 ай бұрын
i think iteration starts from 0
@darshanpathak51884 жыл бұрын
Aman Bhaiya is taking education to the next level🙏🙏🙏
@vidhutripathi48714 жыл бұрын
end should be set as n-1 since we have 0 based indexing in c++
@sayanghosh69964 жыл бұрын
yes
@vedantshah42304 жыл бұрын
Yes
@sohanjangid12074 жыл бұрын
Yes bro I have same doubt . Have you solved it?
@sayanghosh69964 жыл бұрын
@@sohanjangid1207 theres no doubt, it will be n-1.
@pranjalpagaria3224 жыл бұрын
thats why they have not run the code
@ehsanullah4206 Жыл бұрын
Very easy teaching method thanks maam
@AryanKohli-hkscx3 жыл бұрын
12:11 it should be n/(2^(k-1))
@Kshitish_th3 жыл бұрын
Yp i was thinking sane
@shivammaurya34514 жыл бұрын
Thank u aman bhaiya and mam very useful video thank u ❤🖤
@srijankunduchowdhury3 жыл бұрын
After 1st iteration, length of array should be n/2 .. That's why we can conclude, After k iteration, lengh of array would be n/(2**k)
@harshitasinghdulawat7956 Жыл бұрын
she has done wrong! ,right?
@brucewayne-mh7ul3 жыл бұрын
Gazab animation bhai 😁
@rutvikrana5124 жыл бұрын
Why use binary search?? Simple answer: If n will become very large then simple search will take hours to find element, but same with binarysearch becomes log(n) ( aka in seconds ... ) 👌
@me-oniichan4 жыл бұрын
Not hours
@_rahulsain4 жыл бұрын
there are advance sort also
@MintuKumar-dn4gq4 жыл бұрын
because of time complexity.
@rutvikrana5124 жыл бұрын
ALLEN A ... I am talking about n as big as billions. If we theoretically calculate it will take hours or days. 🤘
@rutvikrana5124 жыл бұрын
Rahul Sain .... what is that I don’t know ? Sort or Search ??
@vengersquad89122 жыл бұрын
It helped me a lot for my boards exam of computer
@jatingarg18974 жыл бұрын
Sir please provide the notes of this lecture sir. Thankyou. And your course is amazing.
@rakeshpatra78002 жыл бұрын
Re ghanta amazing vai sala wise parata hai jaise ki aj hi khatam karna hai pura syllabus ☹️ thoda smjha samjha ka padya na College mai vi eisa padata hai or yeh vu dise padata hai 😑kahase samjhe patahi nahi chalta hai
@jatingarg18972 жыл бұрын
@@rakeshpatra7800 Check the time of my comment. Its more than 1 year now. Ab isse kahi guna behtr courses youtube pe hai.
@hammadqayyum2467Ай бұрын
most simplest explanation ive ever got WTF DUDE
@beacoder12214 жыл бұрын
Sir Please upload the notes it is going to be 1 week of this video being uploaded
@weasleygaming34 жыл бұрын
Can you please tell at 5:57, it isn't necessary that the user inputs the elements of array in ascending, so how can we solve it then?
@TonyStark-ct8xd4 жыл бұрын
@@weasleygaming3 use c/c++ built in sort( ) function.
@0xatul4 жыл бұрын
@@weasleygaming3 Yes, It's necessar to have the inputs in ascending order, thats why it is called binary search. There are other algorithms for searching without a ascending order.
@cenacr0074 жыл бұрын
u can sort it beforehand....sort function is available for that
@AbhishekSharma-wi2ry3 жыл бұрын
@@TonyStark-ct8xd by after sorting the array index of the elements will change then how would we get correct index It will index of the sorted array but we want index of the real array that's my doubt
@ujjwalverma28703 жыл бұрын
I AM SO OBSESSED WITH NEHA😌
@THEELECTRICGUY4 жыл бұрын
There is a small mistake in the video; In the function, variable e should be initialized with (n-1) rather than n If you run the program and enter a value greater than the values you have given to the array then you will not get -1 rather you will get the same number as an output!!! which is weird...
@prometheus3899 Жыл бұрын
thanks thought same
@anubhabsamanta85324 жыл бұрын
Bhaisaab Kya samjha diya Neha rocks
@TheZipzapzum4 жыл бұрын
Yes , neha is back !
@Hot-Introduction4 жыл бұрын
Aman Bhaiya and team you are great
@r1sh1494 жыл бұрын
I think you all will hate me after this comment but 1.Everyone in comment section: This guy will ruin this system The world ia going to change But no one have any doubt 🙄 I had too many doubts and i commented in videos but that comment got ignored and this 🔥 appreciation only getting likes
@mohammedziyad1754 жыл бұрын
True brother..i feel like this course is way too fast for begineers!
@rahul_siloniya4 жыл бұрын
Bro you need stack exchange not comment section KZbin is for knowledge distribution not for doubt clearance sessions because it's mechanism is not built for this
@techega76324 жыл бұрын
@code with sumit 0.1 tm to le bitoge bhai sbka
@kalpeshmali14764 жыл бұрын
Solving ur own doubts by own makes u a real problem solver if u have any douts just google it or search on stack overflow youtube is for knowledge for doubts stack overflow is there
@techega76324 жыл бұрын
@@kalpeshmali1476 Right bro
@kritikamishra50236 ай бұрын
just loved the explanation
@subhamrudra3603 жыл бұрын
Sir, it has been 8 months now, please upload the notes of this video. 😃
@yashmodi24322 жыл бұрын
it has been 1 year 8 months please upload notes😂
@unkownboy99622 жыл бұрын
@@yashmodi2432 it has been 2 year please upload notes
@syedmuhammadabdullah3777 Жыл бұрын
🤣
@DevsMovies-w3f6 ай бұрын
3 years
@abhijeetdhumal86503 жыл бұрын
I think we need to write while loop like while(s
@vaibhavkapoor39533 жыл бұрын
Pls upload notes of this video it’s been 3 months now🙏🏼
@akshatavasthi28803 жыл бұрын
soory bro ..... short while( n
@mauryaashish18653 жыл бұрын
now its 7 months :(
@aditijha74383 жыл бұрын
@@shubhsharma19 everyone is not quick in grasping so u should respect it!
@ayushjhanwar36963 жыл бұрын
@@mauryaashish1865 8 months ;(
@sandhyashivhare29553 жыл бұрын
10 months
@ItsYourCandyBro3 жыл бұрын
These videos are really "awesome"
@bakchodipunekar58053 жыл бұрын
at 12:15 it should be n/2^(k-1) right?? because for 3rd iteration it is n/2^2
@ritikthakur49213 жыл бұрын
Yes it's a valid point but I think in a previous video, it has been mentioned that we check time complexity for large no. of iterations. For large k, k-1 is nearly same as k. Moreover we ignore constants while writing time complexity so even if you replace k by k-1 you would get no. of iterations as log(n)+1 which again gives a time complexity of log(n).
@adityasinha28483 жыл бұрын
After 1st iteration it should be n/2..
@rameshmalhotra95253 жыл бұрын
kzbin.info/www/bejne/a3fWepRqgtVmntE🙏🏻
@AK-ln2ko2 жыл бұрын
Time complexity of binary search is O(log(base2)N) and for linear search is O(N)
@excalibur28894 жыл бұрын
Didi afer kth iteration shouldn't it be n/(2^k-1)
@nimisharaj85014 жыл бұрын
yeah..i too had the same doubt..
@ibrahimwadi65394 жыл бұрын
@@nimisharaj8501 same here
@akshansharma35273 жыл бұрын
after the first iteration, it will be n/2. it will be n before that. so the formula is n/(2^iterations)
@Monikakumawat-k4v Жыл бұрын
It is very easy for me😊
@raghvendrasonarikar32004 жыл бұрын
In the code from 8:00 to 11:30 what if when array is not sorted in increasing or in decreasing order ?
@---UNDEMODUGULANIKHILTEJA3 жыл бұрын
Binary Search is applicable only when the given array is sorted. If not, we first need to sort the array and then find the element using the binary search function.
@omkarbochare71963 жыл бұрын
Everything is temporary but Neha is constant..
@0xatul4 жыл бұрын
Why do we even need to calculate Time Complexity? Is it asked in some interviews? Or is it just for our own understanding and for understanding the call stack?
@sit33darshanpagar163 жыл бұрын
We find time complexity to make our program fast
@ganeshmurmu23383 жыл бұрын
Bhai ek baar competitive websites use karke dekh sara jawab mill jaeyga, time complexity kyu zarure hey, Bohot jarure hey bhai!!!!!!!
@sayantaniguha85193 жыл бұрын
@@ganeshmurmu2338 link bhej tu aur bta teko aisa kyu lagta ?
@ganeshmurmu23383 жыл бұрын
@@sayantaniguha8519 dekho, simplest bhasa mey boley to, competitive coding websites mey difficult questions mey O(n) time complexity wala solution banana parta hey isley time complexity is important
@ganeshmurmu23383 жыл бұрын
Agar samjh nai aya to ek watsapp group banatey hey? Or if yo don't want to share number than telegram group, accha discussion, doubt solving ho payega..... What do you think?
@chandansuthar64473 жыл бұрын
Awesome teaching didi🤗
@dexhorox7394 Жыл бұрын
You forgot to mention one thing though while linear search can be used on unsorted data,binary search can only be used on sorted data
@pavankumar-gp9zx3 жыл бұрын
6:20 binary search
@bdbrightdiamond4 жыл бұрын
Urvi di, At @12:12 , after (k+1) iteration aayega n/2^k (I guess), k iteration bad to n/2^(k-1) aayega, jisse k = log_2(2n) aayega. Is it an error? Will it affect time complexity?
@rutvikrana5124 жыл бұрын
If you have array with 1024 items than it can written as 2^10. So it will take 10 times process if we cut it in half to small. So if array has length of N then 2^k = N, how we can find k here?? It is exponent Simple by log k = log(N) And yeah, video has mistake. After 1st iteration array will be N/2 and not N. If you are interested then read further. This approach of problem solving is called "divide and conquer". As we are dividing our array into halves. Another examples of D&C : - finding GCM ( greatest common divisor ) - merge sort and quick sort algorithms binary search will only work if array is sorted. This should be in mind. The same example of the video can be easily written by Recursion. binarySearch(int arr[],int item,int l, int r) { int n = sizeof(arr)/sizeof(arr[0]); int m = (l+r)/2; if (m < 0 || m> n-1){ return -1; } if (arr[m] == item){ return item; } else if(arr[m] > item) { return binarySearch(arr,item,l,m-1); } else{ return binarySearch(arr,item,m+1,r); } return -1; }
@peterpace33794 жыл бұрын
@@rutvikrana512 kya bhai topper lagte ho
@rutvikrana5124 жыл бұрын
peter pace ... Topper hu na but Medical Mai. 😂
@nn_yt243 жыл бұрын
In time complexity of binary search after k iterations length of array should be n/(2^k-1)
@shrey85043 жыл бұрын
No, as during the first iteration length of array will be n/2 (instead of n) ,the length of array for kth iteration will be n/(2^k)
@TanmayTanejaTheBoss3 жыл бұрын
12:10 after k iterations, shouldnt the length of array become n/2^(k-1) instead of n/2^(k)
@TanmayTanejaTheBoss3 жыл бұрын
ok no actually, after the first iteration, the length of the array becomes n/2 instead of n : which makes the length after the kth iteration be = n/2^(k).
@thats_me_ds Жыл бұрын
i would like to point one specific error, lets say we putted one sorted array and key is same as the last value of array, then it will return -1 because we have initialsed last element e from n, it would be better if we initialise [e= n-1]. In the function defined 'binarysearch', we need to initialize the end from n-1 where n is the size of the arr. I hope this helps.
@sounaksaha14554 жыл бұрын
Please, bhaiya upload the notes ASAP. We are counting on you
@armedgamer36363 жыл бұрын
Hi apna college. Amazing video you have made here, full of learning. Please can you upload notes for this video?? Regards
@mihirmakwana11414 жыл бұрын
Sir please upload notes of this video.
@guidanceverse_11 ай бұрын
My final CS exam at 9:00 am me watching this at 8:25 am
@viveksahu_me10 ай бұрын
Watching 20min before exam😅
@somnathduttabanik50484 жыл бұрын
please upload the notes... thank you for the lecture series
@himanshumittal40134 жыл бұрын
most studip students or haters who dislike the efforts by a such team