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Try doing this:
int **ary = new int[sizeY];int* [sizeY]; for (int i = 0; i < sizeY; i++) ary[i] = new int[sizeX];
int **ary = new int[sizeY]; for (int i = 0; i < sizeY; i++) ary[i] = new int[sizeX];
int **ary = new int* [sizeY]; for (int i = 0; i < sizeY; i++) ary[i] = new int[sizeX];