The tricky thing about problems best solved by applying CS concepts is that they're never worded that way. By way of analogy, when I was in junior high or early high school (before I'd taken calculus, at any rate), I participated in a math contest. After the test I remarked, "That test didn't really have any calculus in it!" Only later, when I actually learned calculus, did I realize the calculus problems were never, "Apply the derivative and integral to this set of functions," but "These two quantities and their slopes are related to a third quantity by these rules. Write an equation for the third quantity."
Graph theory has also proven useful. I created a simple topological sort to ensure that objects in my dataflow-based visual programming system targeted at home automation are run in the correct order.
Graph theory has also proven useful. I created a simple topological sort to ensure that objects in my dataflow-based visual programming system targeted at home automation are run in the correct order.