Developer Interview Questions

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Given 2 dates, return a result set that outputs a number for each week between the two. (They will ask the numbered week to be the sequential week and also the calendar week. Prepare for given start date to be start mid-week.)
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SQL Developer

Interviewed at ISN Software

3.9
Aug 26, 2015

Given 2 dates, return a result set that outputs a number for each week between the two. (They will ask the numbered week to be the sequential week and also the calendar week. Prepare for given start date to be start mid-week.)

phone interview: (1) 3x3 large square, the surface is painted in red. After cutting into 27 pieces, just take one piece and throw it on the table. Five sides are white and white. Ask the probability that the last face is red. (2) X = the sum of 100 rolls of dice, Y = the number of heads of 600 coin flips, ask Pr (X>Y) (3) N points randomly in a circle. The probability that all of them lie in a semicircle
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Algorithm Developer

Interviewed at Hudson River Trading

4.2
Jan 16, 2022

phone interview: (1) 3x3 large square, the surface is painted in red. After cutting into 27 pieces, just take one piece and throw it on the table. Five sides are white and white. Ask the probability that the last face is red. (2) X = the sum of 100 rolls of dice, Y = the number of heads of 600 coin flips, ask Pr (X>Y) (3) N points randomly in a circle. The probability that all of them lie in a semicircle

You are given 8 identical looking balls. One of them is heavier than the rest of the 7 (all the others weigh exactly the same). You a provided with a simple mechanical balance and you are asked to find out the minimum amount of weighings necessary to identify the heavier ball.
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Graduate Software Developer

Interviewed at Scott Logic

2.5
Dec 8, 2018

You are given 8 identical looking balls. One of them is heavier than the rest of the 7 (all the others weigh exactly the same). You a provided with a simple mechanical balance and you are asked to find out the minimum amount of weighings necessary to identify the heavier ball.

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