Hi!!
This is my first post on the forum, because I've been having trouble trying to do this. How can I from an array that's [i][j] duplicate it's column and line values to a [2*i][2*j]?
For example : [2,4];[5,6] to [2,2,4,4];[2,2,4,4];[5,5,6,6];[5,5,6,6]
And how can I do the inverse, remove alternatively column and line.
For example: [1,2,3,4];[5,6,7,8];[9,10,11,12];[13,14,15,16] to [1,3];[9,11]
Thanks!
Just do newArray[i][j] = oldArray[i/2][j/2] for each i, j.
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That covers the second case.Originally Posted by TomasRiker
For the first case you want to assign each value to the four locations:
[i*2][j*2]
[i*2+1][j*2]
[i*2][j*2+1]
[i*2+1][j*2+1]
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First case is working, as for the second case tried and it doesn't work and I can't understand why it puts the new array all with 1's plus it alters the first row of the original one.
Actually, my mistake, the other guy's suggestion was also for the first case, and is probably the simpler way of doing it.
For the second case you can just turn the /2 into *2.
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Advice: Take only as directed - If symptoms persist, please see your debugger
Linus Torvalds: "But it clearly is the only right way. The fact that everybody else does it some other way only means that they are wrong"
