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Problem 42794. Fast 1-D Convolution (same shape)

Pursuant to the first problem in the fast 1-D convolution series, this problem asks for the fast algorithm to compute the 1-D convolution with the same input-output shape.

There exists a fast 1-D convolution algorithm way more efficient than MATLAB's built-in conv function invoked in the form conv(u,v,'same'), and the performance improvement is more pronounced when length(u) and/or length(v) are large. Do you know how? Try it out.

Solution Stats

88.37% Correct | 11.63% Incorrect
Last Solution submitted on Apr 03, 2019

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