is present or if select another route is a better decision.
the figures 1 and 2 illustrate what i'm looking for. the figure 1 shows the route a as the best one to be chosen, even with an issue place on it (the issue with the lowest level). the route b is the worst since it has the highest issue level/cost. the route d is possible to reach the end, but the cost would be too high to be chosen, what makes it the worst route. figure 2 shows the route b as the best route to be chosen because the cost of the issue on b is lower than the 