Day-4:
Minimum Size Subarray Sum
Leetcode #209
Algorithm: Binary Search, Sliding Window, Prefix Sum
Related Video: https://www.youtube.com/watch?v=S6Xg-0uaODc
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Minimum Size Subarray Sum
Leetcode #209
Algorithm: Binary Search, Sliding Window, Prefix Sum
Related Video: https://www.youtube.com/watch?v=S6Xg-0uaODc
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Day-4(Solution):
Minimum Size Subarray Sum
Leetcode #209
Algorithm: Binary Search, Sliding Window, Prefix Sum
Related Video: https://www.youtube.com/watch?v=S6Xg-0uaODc
Solution: https://gist.github.com/lavakush-m-tiwari/021f98e89a22503feb864bbe8f19ea3e
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Minimum Size Subarray Sum
Leetcode #209
Algorithm: Binary Search, Sliding Window, Prefix Sum
Related Video: https://www.youtube.com/watch?v=S6Xg-0uaODc
Solution: https://gist.github.com/lavakush-m-tiwari/021f98e89a22503feb864bbe8f19ea3e
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Day-5
Remove K Digits
Leetcode #402
Algorithm: Stack, Greedy, Monotonic Stack
Related Video: https://www.youtube.com/watch?v=3QJzHqNAEXs
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Remove K Digits
Leetcode #402
Algorithm: Stack, Greedy, Monotonic Stack
Related Video: https://www.youtube.com/watch?v=3QJzHqNAEXs
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LeetCode
Remove K Digits - LeetCode
Can you solve this real interview question? Remove K Digits - Given string num representing a non-negative integer num, and an integer k, return the smallest possible integer after removing k digits from num.
Example 1:
Input: num = "1432219", k = 3…
Example 1:
Input: num = "1432219", k = 3…
Day-5 (Solution)
Remove K Digits
Leetcode #402
Algorithm: Stack, Greedy, Monotonic Stack
Solution: https://gist.github.com/lavakush-m-tiwari/70f4b730498bb9fc39fafb83449fd261
Related Video: https://www.youtube.com/watch?v=3QJzHqNAEXs
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Remove K Digits
Leetcode #402
Algorithm: Stack, Greedy, Monotonic Stack
Solution: https://gist.github.com/lavakush-m-tiwari/70f4b730498bb9fc39fafb83449fd261
Related Video: https://www.youtube.com/watch?v=3QJzHqNAEXs
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LeetCode
Remove K Digits - LeetCode
Can you solve this real interview question? Remove K Digits - Given string num representing a non-negative integer num, and an integer k, return the smallest possible integer after removing k digits from num.
Example 1:
Input: num = "1432219", k = 3…
Example 1:
Input: num = "1432219", k = 3…
Day-15
Smallest K-Length Subsequence With Occurrences of a Letter
#2030
Algorithm: Stack, String
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Smallest K-Length Subsequence With Occurrences of a Letter
#2030
Algorithm: Stack, String
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LeetCode
Smallest K-Length Subsequence With Occurrences of a Letter - LeetCode
Can you solve this real interview question? Smallest K-Length Subsequence With Occurrences of a Letter - You are given a string s, an integer k, a letter letter, and an integer repetition.
Return the lexicographically smallest subsequence of s of length…
Return the lexicographically smallest subsequence of s of length…
Day-15 (Solution)
Smallest K-Length Subsequence With Occurrences of a Letter
#2030
Algorithm: Stack, String
Solution: https://gist.github.com/lavakush-m-tiwari/0f5a35e495382236d94c79e372487256
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Smallest K-Length Subsequence With Occurrences of a Letter
#2030
Algorithm: Stack, String
Solution: https://gist.github.com/lavakush-m-tiwari/0f5a35e495382236d94c79e372487256
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LeetCode
Smallest K-Length Subsequence With Occurrences of a Letter - LeetCode
Can you solve this real interview question? Smallest K-Length Subsequence With Occurrences of a Letter - You are given a string s, an integer k, a letter letter, and an integer repetition.
Return the lexicographically smallest subsequence of s of length…
Return the lexicographically smallest subsequence of s of length…
Day-3
Reverse Linked List
#206
Algorithm: Linked List, Recursion
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Reverse Linked List
#206
Algorithm: Linked List, Recursion
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LeetCode
Reverse Linked List - LeetCode
Can you solve this real interview question? Reverse Linked List - Given the head of a singly linked list, reverse the list, and return the reversed list.
Example 1:
[https://assets.leetcode.com/uploads/2021/02/19/rev1ex1.jpg]
Input: head = [1,2,3,4…
Example 1:
[https://assets.leetcode.com/uploads/2021/02/19/rev1ex1.jpg]
Input: head = [1,2,3,4…
Day-3 (Solution)
Reverse Linked List
#206
Algorithm: Linked List, Recursion
Solution: https://gist.github.com/lavakush-m-tiwari/50a56ed4395866baf3c0709464c38baa
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Reverse Linked List
#206
Algorithm: Linked List, Recursion
Solution: https://gist.github.com/lavakush-m-tiwari/50a56ed4395866baf3c0709464c38baa
Subscribe our Channel : https://www.youtube.com/c/TECHDOSE4u
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LeetCode
Reverse Linked List - LeetCode
Can you solve this real interview question? Reverse Linked List - Given the head of a singly linked list, reverse the list, and return the reversed list.
Example 1:
[https://assets.leetcode.com/uploads/2021/02/19/rev1ex1.jpg]
Input: head = [1,2,3,4…
Example 1:
[https://assets.leetcode.com/uploads/2021/02/19/rev1ex1.jpg]
Input: head = [1,2,3,4…
Day-10
Linked List Cycle
#141
Algorithm: LinkedList, Two Pointer , HashTable
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Linked List Cycle
#141
Algorithm: LinkedList, Two Pointer , HashTable
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LeetCode
Linked List Cycle - LeetCode
Can you solve this real interview question? Linked List Cycle - Given head, the head of a linked list, determine if the linked list has a cycle in it.
There is a cycle in a linked list if there is some node in the list that can be reached again by continuously…
There is a cycle in a linked list if there is some node in the list that can be reached again by continuously…
Day-10
Linked List Cycle
#141
Algorithm: LinkedList, Two Pointer , HashTable
Solution: https://gist.github.com/lavakush-m-tiwari/932ca2d6e72c93708e59a9417444ea94
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Linked List Cycle
#141
Algorithm: LinkedList, Two Pointer , HashTable
Solution: https://gist.github.com/lavakush-m-tiwari/932ca2d6e72c93708e59a9417444ea94
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LeetCode
Linked List Cycle - LeetCode
Can you solve this real interview question? Linked List Cycle - Given head, the head of a linked list, determine if the linked list has a cycle in it.
There is a cycle in a linked list if there is some node in the list that can be reached again by continuously…
There is a cycle in a linked list if there is some node in the list that can be reached again by continuously…
Day-18
Design Twitter
#355
Algorithm: LinkedList, hashtable, heap
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Design Twitter
#355
Algorithm: LinkedList, hashtable, heap
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LeetCode
Design Twitter - LeetCode
Can you solve this real interview question? Design Twitter - Design a simplified version of Twitter where users can post tweets, follow/unfollow another user, and is able to see the 10 most recent tweets in the user's news feed.
Implement the Twitter class:…
Implement the Twitter class:…
Day-18 (Solution)
Design Twitter
#355
Algorithm: LinkedList, hashtable, heap
Solution: https://gist.github.com/lavakush-m-tiwari/e4e83f88d7707bae316babf69496c81f
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Design Twitter
#355
Algorithm: LinkedList, hashtable, heap
Solution: https://gist.github.com/lavakush-m-tiwari/e4e83f88d7707bae316babf69496c81f
Subscribe our Channel : https://www.youtube.com/c/TECHDOSE4u
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LeetCode
Design Twitter - LeetCode
Can you solve this real interview question? Design Twitter - Design a simplified version of Twitter where users can post tweets, follow/unfollow another user, and is able to see the 10 most recent tweets in the user's news feed.
Implement the Twitter class:…
Implement the Twitter class:…
Day-19
Flatten a Multilevel Doubly Linked List
#430
Algorithm: LinkedList, doubly linked list, dfs
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Flatten a Multilevel Doubly Linked List
#430
Algorithm: LinkedList, doubly linked list, dfs
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LeetCode
Flatten a Multilevel Doubly Linked List - LeetCode
Can you solve this real interview question? Flatten a Multilevel Doubly Linked List - You are given a doubly linked list, which contains nodes that have a next pointer, a previous pointer, and an additional child pointer. This child pointer may or may not…
Day-19 (Solution)
Flatten a Multilevel Doubly Linked List
#430
Algorithm: LinkedList, doubly linked list, dfs
Solution: https://gist.github.com/lavakush-m-tiwari/250f554982b47f60dde6a89dae56ee22
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Flatten a Multilevel Doubly Linked List
#430
Algorithm: LinkedList, doubly linked list, dfs
Solution: https://gist.github.com/lavakush-m-tiwari/250f554982b47f60dde6a89dae56ee22
Subscribe our Channel : https://www.youtube.com/c/TECHDOSE4u
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LeetCode
Flatten a Multilevel Doubly Linked List - LeetCode
Can you solve this real interview question? Flatten a Multilevel Doubly Linked List - You are given a doubly linked list, which contains nodes that have a next pointer, a previous pointer, and an additional child pointer. This child pointer may or may not…