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50462 - Class Average (3 Grades)

Lab11 - SWE

Start: Dec.12.2023 at 12:16:04 AM
Finish: Dec.22.2023 at 11:16:04 PM
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Time limit 2000/4000/4000/4000 ms. Memory limit 65000/65000/65000/65000 Kb.
Question by Ibrahim Mesecan.

Class Average (3 Grades)

Question:
You will be given 3 marks of n students. First calculate average of n students where student averages are rounded to the nearest integer. Then your program will calculate the class average.

Input specification
At the beginning, you will be given an integer n where 0 ≤ n ≤ 1000 Then, you will be given three integer numbers (m1, m2, m3) for n students where each of the mark is an integer between 0 and 100.

Output specification
Show one floating point number with 3 digits after the floating point.

Sample Input I   
  5
  87 87 95
  55 90 52
  52 62 51
  71 100 76
  49 93 92
Sample Input II   
  8
  47 65 92
  71 37 57
  30 98 96
  79 21 30
  94 55 65
  75 39 37
  55 90 62
  67 62 81
Sample Output I   
  74.2
Sample Output II  
  62.625


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