for (int i = 0; i < 4; ++i) {
int toX = fromX + mx[i];
int toY = fromY + my[i];
// ...
}
By this way, you can easily enumerate moving up/down/left/right instead of
writing them four times. It more efficient for coding and less probable to
introduce bugs (due to typo or copy/paste). It is a good practical to
replace similar logicals and duplicate blocks with loop.
On Thu, Jun 28, 2012 at 12:20 PM, Registered user
<[email protected]>wrote:
>
>
> final int[] mx = {0, 0, 1, -1};
> final int[] my = {1, -1, 0, 0};
>
> i found the above line of code, in many solution that was related to
> matrix (NxM). but i could not understand how it is being used. can any one
> explain a bit. or give any link reference where i can find some short of
> explanation related to this.
> half thanks in advance and the other half after answering....
>
>
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--
Sincerely,
Zejun Wu (a.k.a. watashi)
Rm. 218, International Conference Center, Zijingang Campus
Zhejiang University, Hangzhou 310058
Blog: http://watashi.ws/blog/
Email: [email protected]
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