report for 2009Baidu cup computer contest

第四节百度杯A题答案。水杯的问题！To solve this problem, you should know that the volume of one cup is pi * (r * r + R * R + r * R) * h / 3. If you don t know this formula, you could find by this formula: s * h / 3. It s the formula to calculte the volume of ta