Probably a wrong part in Tutorial 4?

[woojun-lee]

Hi,

In Tutorial 4, the part below, seems the result is supposed to be 2 instead of 3, is this something to be fixed?

[chMoussa]

Hi @woojun-lee , actually the colors are numbered 1, 2 and 0 (so blue, green and orange). Maybe it would be nice to add a legend though.

[woojun-lee]

Hi @chMoussa, thanks for your reply, but it seems my explanation was insufficient. I meant, according to the main text, an optimal solution for the problem is supposed to have 2 colors, not 3 colors as shown, because the graph is bipartite and has no odd cycles.