2016 AMC 12B Problem 11

How many squares whose sides are parallel to the axes and whose vertices have coordinates that are integers lie entirely within the region bounded by the line y=\pi x, the line y=-0.1 and the line x=5.1?

\textbf{(A)}\ 30 \qquad \textbf{(B)}\ 41 \qquad \textbf{(C)}\ 45 \qquad \textbf{(D)}\ 50 \qquad \textbf{(E)}\ 57

Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.