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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main()
  5.  
  6. {
  7.     int T, N, i, a, b, c, j;
  8.     double p, x, y, z = 0;
  9.  
  10.     scanf("%d", &T);
  11.  
  12.     for(i = 0; i < T; i++)
  13.     {
  14.         scanf("%d", &N);
  15.         for(j = 0; j < N; j++)
  16.         {
  17.             scanf("%lf", &p);
  18.             z = z + p;
  19.         }
  20.         x = z / N;
  21.         printf("%.3lf\n", x);
  22.         z = 0;
  23.     }
  24.  
  25.     return 0;
  26.  
  27. }
  28.  
Success #stdin #stdout 0s 4580KB
comments (?)
stdin
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5
1
3.9876
2
2.0011
4.0000
4
2.1005
3.2005
2.3005
3.4005
5
2.0001
3.0003
4.0000
3.0005
2.0006
8
2.0000
3.0000
2.1000
2.0200
3.0030
3.0004
2.1234
3.1234
stdout
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3.988
3.001
2.750
2.800
2.546
https://ideone.com/prVFAA
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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