[0xDEAD10CC]

I don't think you know what a 2D array is... This is a jagged array, not a 2D array:

Code:

private double [][] view;

Java actually doesn't even support *true* 2D arrays, so a jagged array is all you've got.

And if this is a multi-language challenge, you shouldn't restrict it to a class. C doesn't have classes for instance, and same with other languages as well.

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Here's my solution in C:

Code:

#include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <string.h> float arr[] = { 0.3, 0.7, 0.8, 0.4, 1.4, 1.1, 0.2, 0.5, 0.1, 1.6, 0.6, 0.9 }; void transform_array(float **dest, float *src, size_t r, size_t rows, size_t columns) { if (r >= rows) return; for (size_t i = 0; i < columns; ++i) { dest[r][i] = *(src + (r * columns) + (r & 1 ? columns - i - 1 : i)); } transform_array(dest, src, r + 1, rows, columns); } int main() { // initialization size_t rows = 4, columns = 3; size_t len = sizeof(arr[0]); float **ptr = malloc(rows * len); for (size_t i = 0; i < rows; ++i) ptr[i] = malloc(columns * len); transform_array(ptr, &arr[0], 0, 4, 3); for (size_t i = 0; i < rows; ++i) { for (size_t j = 0; j < columns; ++j) printf("%.1f ", ptr[i][j]); printf("\n"); free(ptr[i]); } }

Output:

Code:

0.3 0.7 0.8 1.1 1.4 0.4 0.2 0.5 0.1 0.9 0.6 1.6