Four days of problem solving equals success in international math competition

More than 5,000 teams from around the world competed, but few did better than a trio of Bucknellians.LEWISBURG, Pa. — Design the perfect brownie pan. It's a challenge that, at first, might not seem as if it would intimidate some of the brightest young minds from around the world. But when first-year computer science and engineering major Li Li saw that the problem was one of the two from which his team had to choose for the 2013 Mathematical Contest in Modeling (MCM), he was nervous.   "To be frank, I was totally lost when I saw the problems for the first time," Li recalled. "They seemed