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Puzzle1 - Given 8 coins, and the fact that one of the coins is heavier than the other, how many times(min) do you need to use a beam balance to figure out which is the anomalous coin? After I answered this, he made it little tougher. Given 9 coins and one anomalous coin(maybe heavier or lighter), figure out which coin it is and whether heavier or lighter. What is the min no of comparisons? This is where i took a while to answer.
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Financial Software Developer

Interviewed at Bloomberg

4★
Nov 16, 2010

Puzzle1 - Given 8 coins, and the fact that one of the coins is heavier than the other, how many times(min) do you need to use a beam balance to figure out which is the anomalous coin? After I answered this, he made it little tougher. Given 9 coins and one anomalous coin(maybe heavier or lighter), figure out which coin it is and whether heavier or lighter. What is the min no of comparisons? This is where i took a while to answer.

given an arrya of numbers see if you can get to index with 0 in it from an index by jumping through the array using the values in the array. So if you have [1,2,1,0,3] you can get to 0, from 0 by jumping 0, you can get to 0 from 3, by jumping 3 index down to 2 and then jumping 2 index up to 0...
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Software Engineer

Interviewed at Pinterest

3.6★
Nov 19, 2012

given an arrya of numbers see if you can get to index with 0 in it from an index by jumping through the array using the values in the array. So if you have [1,2,1,0,3] you can get to 0, from 0 by jumping 0, you can get to 0 from 3, by jumping 3 index down to 2 and then jumping 2 index up to 0...

Given a binary tree, which is not necessarily balanced, print the nodes in the tree in a level-wise manner. Also, nodes on the same level should be printed on a single line. A modification of the question was added later in which I cannot really add a "level" variable in the structure of the node in the tree.
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Software Engineer Intern

Interviewed at Meta

3.6★
Aug 13, 2013

Given a binary tree, which is not necessarily balanced, print the nodes in the tree in a level-wise manner. Also, nodes on the same level should be printed on a single line. A modification of the question was added later in which I cannot really add a "level" variable in the structure of the node in the tree.

Implement a method called printNonComments() which prints out a extract of text with comments removed. For example, the input: hello /* this is a multi line comment */ all Should produce: hello all You have access to a method called getNextLine() which returns the next line in the input string.
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Senior Software Engineer

Interviewed at Meta

3.6★
Jun 30, 2014

Implement a method called printNonComments() which prints out a extract of text with comments removed. For example, the input: hello /* this is a multi line comment */ all Should produce: hello all You have access to a method called getNextLine() which returns the next line in the input string.

1. Tell me about yourself 2. Given each abc letter has a value (a=1, b=2, ... , z=26), compute the number of ways one can decode a given integer. e.g. 23 --> 2 [ 2, 3 ; 23 ], 456 --> 1 [ 4, 5, 6 ], 123 --> 3 [ 1, 2, 3 ; 1, 23 ; 12, 3 ]
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Software Engineer

Interviewed at Meta

3.6★
Feb 23, 2015

1. Tell me about yourself 2. Given each abc letter has a value (a=1, b=2, ... , z=26), compute the number of ways one can decode a given integer. e.g. 23 --> 2 [ 2, 3 ; 23 ], 456 --> 1 [ 4, 5, 6 ], 123 --> 3 [ 1, 2, 3 ; 1, 23 ; 12, 3 ]

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