About my current projects, what tech stack I have used, about Docker, some basic questions about ML (i.e. difference between supervised and unsupervised learning and example of each).

For the live coding, I was given a positive integer k and was asked to find all the possible moving windows (find starting and ending points) of values [1, 2, 3, 4, ...] whose sum would add up to k.

Question

About my current projects, what tech stack I have used, about Docker, some basic questions about ML (i.e. difference between supervised and unsupervised learning and example of each).

For the live coding, I was given a positive integer k and was asked to find all the possible moving windows (find starting and ending points) of values [1, 2, 3, 4, ...] whose sum would add up to k.

Anoniem · Accepted Answer

For the live coding, I created an array of elements [1,2, ..., k], used prefix sum to compute the sum of possible intervals (i.e. sum(L,R) = prefixsum(0,R) - prefixsum(0,L)) (though this could be avoided by computing the sum on the fly) and two pointers to keep track of the moving windows.

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