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Techdose
Day-19
Next Permutation

Leetcode #31
Algorithm: Two Pointer
Related Video: https://www.youtube.com/watch?v=6qXO72FkqwM

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Please try the problem yourself and watch the video to learn the Algorithm 🙂
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#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #facebook101 #amazon14 #microsoft7
LeetCode
Next Permutation - LeetCode
Can you solve this real interview question? Next Permutation - A permutation of an array of integers is an arrangement of its members into a sequence or linear order.

* For example, for arr = [1,2,3], the following are all the permutations of arr: [1,2…
1.7K viewsedited  
Techdose
Day-19 (Solution)
Next Permutation

Leetcode #31
Algorithm: Two Pointer

Solution: https://gist.github.com/lavakush-m-tiwari/176829d915c7b06adf6ef2e65f008419
Related Video: https://www.youtube.com/watch?v=6qXO72FkqwM

Subscribe our Channel : https://www.youtube.com/c/TECHDOSE4u
Follow on Linkedin: https://www.linkedin.com/company/tech-dose

Please try the problem yourself and watch the video to learn the Algorithm 🙂
Please SHARE this initiative with your friends as well 😀

#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #facebook101 #amazon14 #microsoft7
LeetCode
Next Permutation - LeetCode
Can you solve this real interview question? Next Permutation - A permutation of an array of integers is an arrangement of its members into a sequence or linear order.

* For example, for arr = [1,2,3], the following are all the permutations of arr: [1,2…
1.68K viewsedited  
Techdose
Day-23
Rotate Array

Leetcode #189

Algorithm: two pointer, Math

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Please try the problem yourself and watch the video to learn the Algorithm 🙂
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#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #facebook5 #amazon10 #microsoft7 #google3 #apple3
LeetCode
Rotate Array - LeetCode
Can you solve this real interview question? Rotate Array - Given an integer array nums, rotate the array to the right by k steps, where k is non-negative.

 

Example 1:


Input: nums = [1,2,3,4,5,6,7], k = 3
Output: [5,6,7,1,2,3,4]
Explanation:
rotate 1…
1.68K views
Techdose
Day-23(Solution)
Rotate Array

Leetcode #581

Algorithm: two pointer, Math
Solution: https://gist.github.com/lavakush-m-tiwari/cff4aee4b1597d73aadbf202aac2907b

Subscribe our Channel : https://www.youtube.com/c/TECHDOSE4u
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Please try the problem yourself and watch the video to learn the Algorithm 🙂
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#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #facebook5 #amazon10 #microsoft7 #google3 #apple3
LeetCode
Rotate Array - LeetCode
Can you solve this real interview question? Rotate Array - Given an integer array nums, rotate the array to the right by k steps, where k is non-negative.

 

Example 1:


Input: nums = [1,2,3,4,5,6,7], k = 3
Output: [5,6,7,1,2,3,4]
Explanation:
rotate 1…
1.61K views
Techdose
Day-4
First Unique Character in a String

Leetcode #387

Algorithm: Stack
Related Video: https://www.youtube.com/watch?v=KnWqCfIfHX0

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Please try the problem yourself and watch the video to learn the Algorithm 🙂
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#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #facebook12 #amazon38 #google4 #microsoft7 #apple6
LeetCode
First Unique Character in a String - LeetCode
Can you solve this real interview question? First Unique Character in a String - Given a string s, find the first non-repeating character in it and return its index. If it does not exist, return -1.

 

Example 1:

Input: s = "leetcode"

Output: 0

Explanation:…
1.73K views
Techdose
Day-4 (Solution)
First Unique Character in a String

Leetcode #387

Algorithm: Stack
Solution: https://gist.github.com/lavakush-m-tiwari/137cfbe73d678c860e216487cbfb12f2
Related Video: https://www.youtube.com/watch?v=KnWqCfIfHX0

Subscribe our Channel : https://www.youtube.com/c/TECHDOSE4u
Follow on Linkedin: https://www.linkedin.com/company/tech-dose

Please try the problem yourself and watch the video to learn the Algorithm 🙂
Please SHARE this initiative with your friends as well 😀

#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #facebook12 #amazon38 #google4 #microsoft7 #apple6
LeetCode
First Unique Character in a String - LeetCode
Can you solve this real interview question? First Unique Character in a String - Given a string s, find the first non-repeating character in it and return its index. If it does not exist, return -1.

 

Example 1:

Input: s = "leetcode"

Output: 0

Explanation:…
1.72K views
Techdose
Day-10
Basic Calculator

#224

Algorithm: Stack, String

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Please try the problem yourself and watch the video to learn the Algorithm 🙂
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LeetCode
Basic Calculator - LeetCode
Can you solve this real interview question? Basic Calculator - Given a string s representing a valid expression, implement a basic calculator to evaluate it, and return the result of the evaluation.

Note: You are not allowed to use any built-in function…
1.45K views
Techdose
Day-10 (Solution)
Basic Calculator

#224

Algorithm: Stack, String
Solution: https://gist.github.com/lavakush-m-tiwari/2c6439fc299bd9674c0da5093d75c8d5

Subscribe our Channel : https://www.youtube.com/c/TECHDOSE4u
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Please try the problem yourself and watch the video to learn the Algorithm 🙂
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#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #facebook10 #amazon9 #microsoft7 #uber5
LeetCode
Basic Calculator - LeetCode
Can you solve this real interview question? Basic Calculator - Given a string s representing a valid expression, implement a basic calculator to evaluate it, and return the result of the evaluation.

Note: You are not allowed to use any built-in function…
1.38K viewsedited  
Techdose
Day-4
Remove Nth Node From End of List

#19

Algorithm: linkedList, two pointer

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Please try the problem yourself and watch the video to learn the Algorithm 🙂
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#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #amazon9 #microsoft7#apple2 #facebook18 #google5
LeetCode
Remove Nth Node From End of List - LeetCode
Can you solve this real interview question? Remove Nth Node From End of List - Given the head of a linked list, remove the nth node from the end of the list and return its head.

 

Example 1:

[https://assets.leetcode.com/uploads/2020/10/03/remove_ex1.jpg]…
1.63K views
Techdose
Day-4 (Solution)
Remove Nth Node From End of List

#19

Algorithm: linkedList, two pointer
Solution: https://gist.github.com/lavakush-m-tiwari/4993f2214140fb9177281f482d30905a

Subscribe our Channel : https://www.youtube.com/c/TECHDOSE4u
Follow on Linkedin: https://www.linkedin.com/company/tech-dose

Please try the problem yourself and watch the video to learn the Algorithm 🙂
Please SHARE this initiative with your friends as well 😀


#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #amazon9 #microsoft7 #apple2 #facebook18 #google5
LeetCode
Remove Nth Node From End of List - LeetCode
Can you solve this real interview question? Remove Nth Node From End of List - Given the head of a linked list, remove the nth node from the end of the list and return its head.

 

Example 1:

[https://assets.leetcode.com/uploads/2020/10/03/remove_ex1.jpg]…
1.59K views
Techdose
Day-7
Swap Nodes in Pairs

#24

Algorithm: LinkedList, Recursion

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Please try the problem yourself and watch the video to learn the Algorithm 🙂
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#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #amazon7 #microsoft7 #apple2 #facebook10
LeetCode
Swap Nodes in Pairs - LeetCode
Can you solve this real interview question? Swap Nodes in Pairs - Given a linked list, swap every two adjacent nodes and return its head. You must solve the problem without modifying the values in the list's nodes (i.e., only nodes themselves may be changed.)…
1.68K views
Techdose
Day-7 (Solution)
Swap Nodes in Pairs

#24

Algorithm: LinkedList, Recursion
Solution: https://gist.github.com/lavakush-m-tiwari/5d9107cdedff9cbd8b38c305439353ee

Subscribe our Channel : https://www.youtube.com/c/TECHDOSE4u
Follow on Linkedin: https://www.linkedin.com/company/tech-dose

Please try the problem yourself and watch the video to learn the Algorithm 🙂
Please SHARE this initiative with your friends as well 😀

#techdose #28DaysOfArray #interviewpreparation #arrays #dsa #MaxFreqLast6Months #amazon7 #microsoft7 #apple2 #facebook10
LeetCode
Swap Nodes in Pairs - LeetCode
Can you solve this real interview question? Swap Nodes in Pairs - Given a linked list, swap every two adjacent nodes and return its head. You must solve the problem without modifying the values in the list's nodes (i.e., only nodes themselves may be changed.)…
1.64K viewsedited