Introduction - If you have any usage issues, please Google them yourself
Input from the keyboard to receive a ban of student achievement, and stored in 50 words grade array, which grade+ I save school No. i+ 1 of student achievement. And then under the grade of student achievement, the students fill in 50 words rank ranking word group, which rank+ I learn the content of its students for the i 1 position. And then learn the order of the rankings from No. terminals displayed. (Enter the number of students <= 50, can be volatile)