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Interview Question for Technology Analyst at Goldman Sachs:

Jan 13, 2012

You have a grid of 10 rows and 10 columns. Write a program to count how many squares there are. (it is not 100, there is the giant 1 square, a 1x1 square, 2x2, 3x3...etc from the left corner, but your points can start from the middle, or any other positions in the 10x10 square)

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Feb 5, 2012

by Anonymous:

1 + 2^2 + 3^2 + ... + n^2 = n * (n+1) * (2n + 1) / 6

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Interview Question for Technology Analyst at Goldman Sachs:

You have a grid of 10 rows and 10 columns. Write a program to count how many squares there are. (it is not 100, there is the giant 1 square, a 1x1 square, 2x2, 3x3...etc from the left corner, but your points can start from the middle, or any other positions in the 10x10 square)

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