Problem Description Xueba: Using the 4-Point Scale, my GPA is 4.0. In fact, the AVERAGE SCORE of Xueba is calculated by the following formula: AVERAGE SCORE = ∑(Wi * SCOREi) / ∑(Wi) 1<=i<=N
http://acm.hdu.edu.cn/showproblem.php?pid=1202 Problem Description 每学期的期末,大家都会忙于计算自己的平均成绩,这个成绩对于评奖学金是直接有关的。国外大学都是计算GPA(grade point average) 又称GPR(grade point ratio),即成绩点数与学分的加权平均值来代表一个学生的成绩的。那么如何来计