Recursive Coding Algorithm for Two-Unicast-Z Networks

This is an implementation of the recursive coding alogrithm for two-unicast-Z networks, proposed in http://arxiv.org/abs/1502.00656

0. numpy==1.9.2
1. networkx==1.9.1
2. pandas==0.16.1
3. gurobi optimization package, gurobipy==6.0.0

0. "Alignment based Network Coding for Two-Unicast-Z Networks", Weifei Zeng, Viveck R. Cadambe, Muriel Medard. https://github.com/weifei/tuzc