Array Mean

• Problem Description

  
  Write a program to find the mean of the elements in the array.
  
  
  Input and Output Format:
  
  Input consists of n+1 integers where n corresponds to the number of elements in the array.
  
  The first integer corresponds to n and the next n integers correspond to the elements in the array.
  
  Output consists of a double value which corresponds to the mean of the array. It is printed upto 2 digits of precision.
  
  Assume that the maximum number of elements in the array is 20.
  
  Refer sample input and output for formatting specifications.
  
  All text in bold corresponds to input and the rest corresponds to output.

• CODING ARENA

• #include <stdio.h>

  int main()

  {

    int i;

    float a,b[100],c=0;

    scanf("%f",&a);

    for(i=0;i<a;i++)

    {

      scanf("%f",&b[i]);

      c=c+b[i];

    }

    printf("The mean of the array is %.2f",c/a);

  return 0;

  }

• Test Case 1

  
  Input (stdin)

  5
  
  2
  
  4
  
  1
  
  3
  
  5
  
  

  Expected Output

  The mean of the array is 3.00

• Test Case 2

  
  Input (stdin)

  10
  
  100
  
  105
  
  200
  
  205
  
  108
  
  15
  
  18
  
  88
  
  1000
  
  12
  
  

  Expected Output

  The mean of the array is 185.10