Given a boolean 2D matrix, find the number of islands. A group of connected 1s forms an island.
Internship Software Interview Questions
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A tree problem and a stack problem
They asked two programming related questions. We could answer in any programming language that we prefer. Either C++, Java or Python.
Given an array of integers. All of the integers except one occur twice. Find that integer.
Q: What is the time and space complexity of the program you just developed?
add two string of numbers(representing 2 big numbers) to one string
Data Structures
Algorithm, tree
Binary search problem
Sum of leaf nodes of a binary tree without using recursion or stack space. (Constant space solution)
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