Time limit 4000/7000/7000/7000 ms. Memory limit 65000/65000/65000/65000 Kb.
Prepared By Ibrahim Mesecan.
Difficulty Gamma
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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