C Exercises: Count and compute positive, negative numbers and average with two digits after the decimal number

C Basic Declarations and Expressions: Exercise-105 with Solution

Write a C program that accepts seven floating point numbers and count the number of positive and negative numbers. Also print the average of all positive and negative values with two digit after the decimal number.

Sample Solution:

C Code:

#include <stdio.h>
int main () {

float x, p_avg = 0, n_avg = 0, temp_p = 0, temp_n = 0;
int i, p_ctr = 0, n_ctr = 0;
printf("Input 7 numbers(int/float):\n");
for (i = 0; i < 7; i++){

  scanf("%f", &x);
  if (x > 0)
   {
    p_ctr++;
    temp_p += x;
   }
  
  if (x < 0
  ) {
    n_ctr++;
    temp_n += x;
   }
}

p_avg = temp_p/p_ctr;

n_avg = temp_n/n_ctr;

if (p_ctr>0)
{
   printf("\n%d Number of positive numbers: ", p_ctr);
   printf("Average %.2f\n", p_avg);
}

if (n_ctr>0)
{
printf("\n%d Number of negative numbers: ", n_ctr);
printf("Average %.2f\n", n_avg);
}
}

Sample Output:

Input 7 numbers(int/float):
25
35.75
15
-3.5
40
35
16

6 Number of positive numbers: Average 27.79

1 Number of negative numbers: Average -3.50

Flowchart:

C programming Code Editor:

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