Fixed a minor bug in Robertson's algorithm
Fixed a minor bug in Robertson's algorithm

daj0ker/BinPy,BinPy/BinPy,BinPy/BinPy,yashu-seth/BinPy,yashu-seth/BinPy,rajathkumarmp/BinPy,rajathkumarmp/BinPy,daj0ker/BinPy