Time limit 2000/4000/4000/4000 ms. Memory limit 65000/65000/65000/65000 Kb.
Prepared by Ibrahim Mesecan.
Difficulty Beta
Class GPA Average
Write a program that is going to read letter grades of students from the
course and then it will show the
the Grade Point Average of the course.
Input specification
You will be given the an integer number (n) where 0 ≤ n ≤ 8000
Then, in the following n lines you will be given letter grades.
Output specification
Show GPA of the course with 2 decimal places after the floating point.
Sample Input I
5
DD
BA
AA
AA
FF
|
Sample Input II
8
CB
DD
FF
FF
FF
BB
DC
AA
|
Sample Output I
2.5 |
Sample Output II
1.5 |
Для отправки решений необходимо выполнить вход.
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