Boys vs Girls (25)

输入描述:

Each input file contains one test case.  Each case contains a positive integer N, followed by N lines of student information.  Each line contains a student's name, gender, ID and grade, separated by a space, where name and ID are strings of no more than 10 characters with no space, gender is either F (female) or M (male), and grade is an integer between 0 and 100.  It is guaranteed that all the grades are distinct.

输出描述:

For each test case, output in 3 lines.  The first line gives the name and ID of the female student with the highest grade, and the second line gives that of the male student with the lowest grade.  The third line gives the difference gradeF-gradeM.  If one such kind of student is missing, output "Absent" in the corresponding line, and output "NA" in the third line instead.

3<br/>Joe M Math990112 89<br/>Mike M CS991301 100<br/>Mary F EE990830 95

Mary EE990830<br/>Joe Math990112<br/>6