@Doddy, This can be solved by a trivial solution something like -
a=0,b=0,c=1,d=1. The test suite will accept the solution, however, this is not something you want (only using non-zero integers as mentioned in the problem statement).
I have edited the test suite accordingly, and will do so wherever I face the same issue in the Number puzzle series.
Back to basics 5 - Clipboard
Create a square matrix of multiples
Matlab Basics II - Minimum
MATLAB Basic: rounding II
Converts numbers into characters
Splitting Hexagon - Problem the second
Matrix Pattern 6
Simple Circuit of Resistors
Number Puzzle - 058
Number Puzzle - 093
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