Development Interview Questions

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How you tell if a positive number is a total square (4,9,16...) ? Notice that a square number is the summation of odd series ( 9=1+3+5, 16 = 1+3+5+7), so I thought to do minus is better that division. However, the recruiter never heard this! I guess that's why I've been ignored! 2 of my friends passed their 2nd turn coding test and went to on-site, 1 got an offer. And then HBK asked him for 3 recommendation letters, he did, and next morning he've been rejected! This kinda company is definitely on your first-ignored-list
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Software Development

Interviewed at HBK Capital Management

4.2
Nov 19, 2013

How you tell if a positive number is a total square (4,9,16...) ? Notice that a square number is the summation of odd series ( 9=1+3+5, 16 = 1+3+5+7), so I thought to do minus is better that division. However, the recruiter never heard this! I guess that's why I've been ignored! 2 of my friends passed their 2nd turn coding test and went to on-site, 1 got an offer. And then HBK asked him for 3 recommendation letters, he did, and next morning he've been rejected! This kinda company is definitely on your first-ignored-list

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