what is hash table??
Softwareentwickler 4 Interview Questions
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Write a function to caculate the angle between hour and minute hand on a clock.
Quickly estimate 2^64 without using a pen/papar.
Find from alist of numbers where each number is repeating even number of times except one. Find that number ?
Ants are at the corners of an equilateral triangle labelled 1, 2, and 3, each ant starts moving towards the next one (1 towards 2, 2 towards 3, 3 towards 1) at the same constant speed. How long until they meet ?
Provide a set of positive integers (an array of integers). Each integer represent number of nights user request on Airbnb.com. If you are a host, you need to design and implement an algorithm to find out the maximum number a nights you can accommodate. The constrain is that you have to reserve at least one day between each request, so that you have time to clean the room. Example: 1) Input: [1, 2, 3] ===> output: 4, because you will pick 1 and 3 2) input: [5, 1, 2, 6] ===> output: 11, because you will pick 5 and 6 3) input: [5, 1, 2, 6, 20, 2] ===> output: 27, because you will pick 5, 2, 20
10 ropes with red and blue end. red end can only connect blue end. what is the expected value of cycles?
The question was the following. I'm rephrasing the question to make it clear for everyone to understand: - You are going on a one-way flight trip that includes billions of layovers. - You have 1 ticket for each part of your trip (i.e: if your trip is from city A to city C with a layover in city B, then you will have 1 flight ticket from city A to city B, and 1 flight ticket from city B to city C. - Each layover is unique. You are not stopping twice in the same city. - You forgot the original departure city. - You forgot the final destination city. - All the tickets you have are randomly sorted. Question are: - Design an algorithm to reconstruct your trip with minimum complexity. - How would you improve your algorithm. Example: - randomly sorted: New York->London San Francisco-> Hong Kong Paris->New York London->San Francisco - sorted: Paris->New York New York->London London->San Francisco San Francisco-> Hong Kong
Given two lowercase strings, S1 and S2, sort S1 in same order as S2. If a character in S1 doesn't exist in S2, put them at the end. If S1 is "program" and S2 is "grapo", then return "grrapom".
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