Computes the average of an arbitrary number of values - C Statement

C examples for Statement:for

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Description

Computes the average of an arbitrary number of values

Demo Code

#include <stdio.h>
#include <ctype.h>                    // For tolower() function

int main(void)
{
  char answer = 'N';                  // Decision to continue the loop
  double total = 0.0;                 // Total of values entered
  double value = 0.0;                 // Value entered
  unsigned int count = 0;             // Number of values entered

  printf("\nThis program calculates the average of any number of values.");

  for( ;; )                           // Indefinite loop
  {//from w  w w.j  a v  a2 s  .c o m
    printf("\nEnter a value: ");      // Prompt for the next value
    scanf(" %lf", &value);            // Read the next value
    total += value;                   // Add value to total
    ++count;                          // Increment count of values

    // check for more input
    printf("Do you want to enter another value? (Y or N): ");
    scanf(" %c", &answer);            // Read response Y or N
    if(tolower(answer) == 'n')        // look for any sign of no
      break;                          // Exit from the loop
  }
  // Output the average to 2 decimal places
  printf("\nThe average is %.2lf\n", total/count);
  return 0;
}

Result


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