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There are 10 boxes of apples. Each apple in the boxes weights 1 pound, except that one of the boxes contains bad apples, which weights 0.9 pound each. You are given a digital weight (not a scale), and you can take apples out of the boxes. what is the minimum time of weighs to find out which box has bad apples? I gave one solution of 3 times using divide and conquer, but the interviewer said that 1 step is possible. So I couldn`t come up with the solution.
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Financial Software Developer

Interviewed at Bloomberg

4★
Jan 13, 2012

There are 10 boxes of apples. Each apple in the boxes weights 1 pound, except that one of the boxes contains bad apples, which weights 0.9 pound each. You are given a digital weight (not a scale), and you can take apples out of the boxes. what is the minimum time of weighs to find out which box has bad apples? I gave one solution of 3 times using divide and conquer, but the interviewer said that 1 step is possible. So I couldn`t come up with the solution.

1. Resume: The project you are most proud of. 2. Data Structure: Pick or design a data structure to store a phone book (name + number pair). We want to do fast lookup (by name) and print the book in lexical order (dictionary order). No follow up. 3. Coding: Given an input array, print the most frequent character in that array. However, when two or more character with the same frequency, print the one with smaller index. e.g. "HAHAB" -> you should print 'H'. No follow up.
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Software Developer

Interviewed at Bloomberg

4★
Feb 20, 2016

1. Resume: The project you are most proud of. 2. Data Structure: Pick or design a data structure to store a phone book (name + number pair). We want to do fast lookup (by name) and print the book in lexical order (dictionary order). No follow up. 3. Coding: Given an input array, print the most frequent character in that array. However, when two or more character with the same frequency, print the one with smaller index. e.g. "HAHAB" -> you should print 'H'. No follow up.

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