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If possible, I'd like a function f(i,j)=k defined as follows 
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#19
Apr2014, 12:02 PM

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The original solution by Mark44 is a simple, direct solution. (The dimensions were off and a typo, but without a compiler it is hard to get it right the first time.) Regarding array indices and table lookups, nothing can beat the versatility of well implemented associative arrays (aka hash tables, dictionaries, etc.). C++ hash tables (unordered_map) are awkward to use, Perl is very good, Python looks good but I have no experience with it.



#20
Apr2014, 12:27 PM

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#21
Apr2014, 01:27 PM

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C's model of arrays (like almost everything else in C) is tied much too closely to the "standard" computer hardware designs when it was invented. But at least the same people didn't make the same mistake twice when they invented Unix. 


#22
Apr2014, 02:09 PM

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