1137 Final Grading
题目描述
For a student taking the online course “Data Structures” on China University MOOC (http://www.icourse163.org/), to be qualified for a certificate, he/she must first obtain no less than 200 points from the online programming assignments, and then receive a final grade no less than 60 out of 100. The final grade is calculated by G=(Gmid−term×40%+Gfinal×60%) if Gmid−term>Gfinal, or Gfinal will be taken as the final grade G. Here Gmid−term and Gfinal are the student’s scores of the midterm and the final exams, respectively.
The problem is that different exams have different grading sheets. Your job is to write a program to merge all the grading sheets into one.
Input Specification:
Each input file contains one test case. For each case, the first line gives three positive integers: P , the number of students having done the online programming assignments; M, the number of students on the midterm list; and N, the number of students on the final exam list. All the numbers are no more than 10,000.
Then three blocks follow. The first block contains P online programming scores Gp’s; the second one contains M midterm scores Gmid−term’s; and the last one contains N final exam scores Gfinal’s. Each score occupies a line with the format: StudentID Score
, where StudentID
is a string of no more than 20 English letters and digits, and Score
is a nonnegative integer (the maximum score of the online programming is 900, and that of the midterm and final exams is 100).
Output Specification:
For each case, print the list of students who are qualified for certificates. Each student occupies a line with the format:
StudentID
Gp Gmid−term Gfinal G
If some score does not exist, output “−1” instead. The output must be sorted in descending order of their final grades (G must be rounded up to an integer). If there is a tie, output in ascending order of their StudentID
‘s. It is guaranteed that the StudentID
‘s are all distinct, and there is at least one qullified student.
Sample Input:
1  6 6 7 
Sample Output:
1  missing 400 1 99 99 
思路
注意：只有当成绩不存在的时候，输出‘1’，当成绩为0时，需要继续输出0
可以推断出，只有当编程成绩大于200时，成绩才会有效，所以我们将编程成绩小于200的学生放在数组0处，不予以编号
计算最后成绩时，四舍五入直接在double基础上+0.5，自动准换为int即可
程序
1 
