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Say, I have a 1d array with 30 elements: array1d[0] = 1 array1d[1] = 2 array1d[2] = 3 . . . array1[29] = 30 How to convert the 1d array to 2d array? Say 10x3? array2d[0][0] = 1 array2d[0][1] =2 array2d[0][2] =3 . . . array2d[9][0] = 28 array2d[9][1] =29 array2d[9][2] =30 Should I use a for loop? But I cannot work it out.
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