Problem 2990. Replace every 3rd element in a vector with 4

x is a vector of undetermined length

You are to replace every 3rd element with the number 4, example:

x = [11 23 34 43 2 31 6 34 5 45 26 7 78];

output = [11 23 4 43 2 4 6 34 4 45 26 4 78];

Make sure the code accounts for varying vector lengths

Solution Stats

62.04% Correct | 37.96% Incorrect
Last Solution submitted on May 26, 2024

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