Errata for "Towards a Second Generation Random Walk Planner: an Experimental Exploration", IJCAI 2013

In Algorithm 2, the assignment s <- c should only be done once before the loop, not in the loop

In Algorithm 3, the increment ++r needs to be done at the beginning of the code block starting with "else if w - li...", not at the end, to avoid a division by 0 problem.

Thanks to Weifeng Chen for the notification about these problems.