Time limit 4000/7000/7000/7000 ms. Memory limit 65000/65000/65000/65000 Kb.
Prepared By Ibrahim Mesecan.
Exam Averages
Mr. Hoxha works as assistant director at South Tirana High School. He stores all exams results for his responsible classes in a file.
Time to time, he wants to see these exam averages. Write a program that is going to read all data and then calculate and show exam averages.
Input specification
There will be n students and m exams where 1 ≤ n ≤ 10000 and 1 ≤ m ≤ 50.
The following n lines contain m integer exam marks for students. Every mark can be an
integer 0 ≤ m ≤ 100. Any mark between 1 and 100 is a grade what student has taken
from that exam. And, 0 means the student hasn't taken the exam because of a problem,
and thus, it will not be count in the exam average.
Output specification
Show m (space separated) double precision numbers that represent exam averages.
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Sample Input:
3 4
0 0 100 10
77 0 1 85
30 80 100 10
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Sample Output:
53.5 80 67 35
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Output explanation
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| Student Nr. | Exam 1 | Exam 2 | Exam 3 | Exam 4 |
| 1 | 0 | 0 | 100 | 10 |
| 2 | 77 | 0 | 1 | 85 |
| 3 | 30 | 80 | 100 | 10 |
| Exam Averages | 53.5 | 80 | 67 | 35 |
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Для отправки решений необходимо выполнить вход.
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