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A mountain array is an array that increases to a peak and then decreases.
Check if the array has a peak where all elements before the peak are in increasing order and all elements after the peak are in decreasing order.
Example: ['1', '2', '3', '4', '5', '4', '3', '2', '1'] is a mountain array.
Example: ['1', '2', '3', '4', '5', '5', '4', '3', '2', '1'] is not a mountain array.
Good HackerRank Question
The left view of a tree shows the nodes that are visible when looking at the tree from the left side.
Traverse the tree in a level order manner
Keep track of the first node encountered at each level
Add the first node at each level to the result array
One easy , one medium question Array based
I applied via Recruitment Consulltant and was interviewed before May 2023. There was 1 interview round.
Coin Change Problem from DSA
I applied via Internshala and was interviewed before Sep 2021. There were 2 interview rounds.
I applied via Recruitment Consultant and was interviewed in May 2020. There were 3 interview rounds.
Diameter of a binary tree is the longest path between any two leaf nodes.
Calculate the height of left and right subtrees recursively.
Calculate the diameter recursively using the formula max(left_height + right_height + 1, max(left_diameter, right_diameter)).
Return the maximum diameter.
To find interchanged terms from an AP series
Identify the common difference between terms
Swap the positions of adjacent terms
Check if the new series is also an AP
Repeat until no more interchanged terms can be found
Database indexing is a technique to improve the performance of database queries.
Indexing creates a data structure that allows for faster retrieval of data.
Indexes are created on one or more columns of a table.
Queries that use indexed columns can be executed faster.
Indexes can be clustered or non-clustered.
Clustered indexes determine the physical order of data in a table.
Non-clustered indexes create a separate structure...
I applied via Referral and was interviewed before Jul 2021. There was 1 interview round.
I applied via Job Portal and was interviewed before Aug 2020. There was 1 interview round.
I applied via Referral and was interviewed before Apr 2021. There were 2 interview rounds.
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