It looks like there's an error in the test suite; test cases 3 and 4 have different length d and n vectors.
Oof! I hate it when that happens. Fixed it. Thanks for the note.
Swap the first and last columns
Which doors are open?
Tell me the slope
Compress strings (not springs)
Replace Vector Elements
The 17x17 Problem
Find the biggest empty box
Rotate and display numbered tile
Balanced Ternary Numbers: Easy as |, |-, |o
Placing Beads Neatly in a Box
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