Hard DoorDash questions from Leetcode.
Engineer Software Interview Questions
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You have a 2d array of 0's and 1's. You want to eliminate the "islands", which are contiguous areas of 1's (touching by left/right/up/down) that are not anchored to the edges of the array. Code, then find time and space complexity
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only one question was asked: how to find the pivot element in a rotated array of integers. how your thought.
Involved copying a linked list. The tricky part though was the objects in the list could refer to one another.
find the local maximums in an array performing in O(log n).
Given 3 coins of different values, print all the sums of the coins up to 1000. Must be printed in order. ex: coins(10, 15, 55) 10 15 20 25 30 . . . 1000
Eggs can be very hard or very fragile, which means they may break if dropped from the first floor or may not even break if dropped from 100th floor. Both eggs are identical. You need to figure out the highest floor of a 100-story building an egg can be dropped without breaking. The question is how many drops you need to make. You are allowed to break two eggs in the process.
how many golf balls could you fit into that building?
Browsers running javascript is single threaded, how can we make AJAX calls in the backgroung?
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