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William Katzianer

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William Katzianer submitted a Comment to Solution 1619057

Nice challenge. Learned how matrix indices are used

on 29 Aug 2018

William Katzianer submitted a Comment to Problem 1321. Given a 4x4 matrix, swap the two middle columns

You may want to change the test description. You are not actually looking for the middle two columns. I won't give away the solution, but the columns you need to swap are hard-coded in. And using the two middle columns is ambiguous if the array is not an even length.

on 28 Aug 2018

William Katzianer received Commenter badge for Problem 611. surrounded matrix

on 11 Aug 2018

William Katzianer submitted a Comment to Problem 611. surrounded matrix

nice way to learn about matrix concatenation

on 11 Aug 2018

William Katzianer received Solver badge for Solution 1440199

on 13 Feb 2018

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