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I applied via Company Website and was interviewed before Apr 2021. There were 2 interview rounds.
Find an odd occurring number among even occurring numbers.
Use XOR operation to cancel out even occurring numbers and get the odd occurring number.
Iterate through the array and XOR each element with the result variable.
The final result will be the odd occurring number.
Print the spiral order of a binary tree and matrix.
For binary tree, use level order traversal and alternate direction for each level.
For matrix, use four pointers to traverse in spiral order.
Example for binary tree: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9
Example for matrix: 1 2 3 4 -> 8 7 6 5 -> 9 10 11 12 -> 16 15 14 13
Finding pairs in an array with a given sum.
Iterate through the array and for each element, check if the difference between the given sum and the element exists in the array.
Use a hash table to store the elements of the array and their indices for faster lookup.
If there are multiple pairs with the same sum, return any one of them.
If no pair is found, return null or an empty array.
Find total number of k element with given avg in an array in minimum time complexity.
Use sliding window technique to traverse the array in O(n) time complexity.
Maintain a sum variable to keep track of the sum of elements in the window.
If the sum of elements in the window is equal to k times the given avg, increment the count.
Move the window by subtracting the first element and adding the next element in the array.
Printing non-boundary elements of a binary tree
Traverse the tree in any order (preorder, inorder, postorder)
Check if the current node is not a boundary node (not the first or last node in its level)
If it is not a boundary node, print its value
Recursively traverse its left and right subtrees
posted on 18 Apr 2021
I applied via Recruitment Consultant
posted on 10 Dec 2020
I applied via Naukri.com and was interviewed in Jun 2020. There were 3 interview rounds.
posted on 8 Dec 2021
I applied via Naukri.com and was interviewed in Jun 2021. There were 2 interview rounds.
posted on 3 Feb 2021
I applied via Naukri.com and was interviewed in Jan 2021. There were 5 interview rounds.
posted on 23 Oct 2021
I applied via Naukri.com and was interviewed before Oct 2020. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Apr 2021. There were 6 interview rounds.
I applied via Other and was interviewed before Dec 2020. There were 6 interview rounds.
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