Print All The Permutations Of A String Using Recursion | FREE DSA Course in JAVA | Lecture 41
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- čas přidán 4. 01. 2023
- We have to print all the permutations of a given string in java using recursion.
So far we have solved so many questions around printing all elements, subsequences etc using recursion that you brain must now be wired in such a sense that when you see a question like this you must start thinking recursively.
This program of printing all the permutations of a given string can be solved recursively as it satisfies the basic 3 conditions of recursion.
Let's see how we can solve this program and write a program in java to print all the permutations of a given string.
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woww ! What a beautiful explanation. I watched over 50 youtube videos , read many websites but still I have not understood permutation.I really liked AR and the steps like 1-1 , 1-2 ... + and why it not work if dont put the backtrack line .That failed case ( with out 3rd line) helped me alot to understand.. My brother is IIT CS student, still he could not explain this permutation clearly as you did. Oh my god... please do more videos.. You will beat all youtube channels ... your subscribers will explode soon. Please keep doing.... these videos.. dont think you will get many subscribers. .. just keep doing by the end of year.. you will see the result. I will also suggest this channels to friends.
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But I can't understand how I returned from 2nd to first step😭😭 any one help me
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This video is currently most valuable and most comprehensive video on CZcams. If you are still not understanding....then first you should understand the basics of recursion call....
But the thing which was lagging in the video was the stack frames which were created during the execution of the program...those who know this this video is blessing for them... great visualisation...❤
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This is the best tutorial i have watched in backtracking
The best explanation on this permutation question u can find on youtube !!!!!!!!!!! thanks for this amazing video.☺
Great explanation of recursive permutations problem i nerver seen anyone in whole CZcams who explained better than this thank you...!
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Same here 😀
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The Best video on permutation . hats off
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very clear and concise explanation.the AR usage was wonderful
❤ wonderful explanation to this complicated case, thank you so much
Best explanation on CZcams so far. Thanks
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Wah Really greatful explanation sir I understand proper but isse pahle Kai video dekha pr nhi samajh aa rha tha
Flawless, just flawless
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I am unable to think the how recursion execution is done in this problem and i watch many vides on youtube and in my premium course but unable to got such a precise information and how every steps being performed. After this video and i am totally understand the recursion in this.
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Great Expalnation
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Thank you!
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Sir Java oops concepts pr video bna dijiye aap bahot achha explain krte hai
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Thank you sir🫡
Tq😊
When will i will increment after executing all statements inside it ?
Usura koduthu solli kudukkura maree irukku 😂😂 actually intha qn puriya evvlo naal agirukku enakku 😅 thanks a lot 🎉
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Can anybody explain how i became 2 after return ?
class Solution{
private:
void solve(vector nums, vector & ans, int index){
//base case
if(index >= nums.size()){
ans.push_back(nums);
return;
}
for( int i = index; i < nums.size(); i++){
swap(nums[index], nums[i]);
solve(nums,ans,index+1);
//backtrack
swap(nums[index], nums[i]);
}
}
public:
vector permute(vector&nums){
vector ans;
int index = 0;
cout
someone please explain this to me
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"I hope ur able to think" 😂
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