Test File Format

The quadtree files consist of one integer per line, representing the preorder traversal of a quadtree that represents a $256$ X $256$ grayscale image consisting of pixel intensities between $0$ and $255($inclusive$)$ for leaf nodes and $-1$ values for non$-$leaf nodes. You may assume that the quadtree files are valid. The walkingtotheskyQT.txt is a sample quadtree file you can use for testing purposes.

The image files consist of one integer per line, representing the raw $($uncompressed$)$ data for the image. The integers are in row$-$major order, meaning that the image is scanned row by row. So the first $256$ integers represent the first row of the image. The next $256$ integers represent the $2$nd row of the image, etc. The integers are always in the range $0$ to $255($inclusive$).$ The smilyface.txt is a sample image file you can use for testing purposes.