Write a small program that fills an array of doubles with user input, prints the

Question

Write a small program that fills an array of doubles with user input, prints the doubles on the screen in a column, and adds up all the doubles in the array and prints the sum onto the screen. You must use at least 3 functions

- Declare an array of doubles of size 20.

- Ask the user how many doubles to enter <= 20.

- Use a loop to read the doubles into the array from the user.

- Use a loop to print the array onto the screen in a column.

- Use a loop to add up all the items in the array and store the sum

- print the sum onto the screen

Explanation / Answer

#include <stdio.h>
void read(double [],int);
double sum(double [],int);
void print(double [],int);
int main()
{
double a[20];
int n;
printf(" How many double to enter <=20.");
scanf("%d",&n);
if(n>20)
printf(" Enter <=20 only");
else {
read(a,n);
print(a,n);
printf(" Sum=%lf ",sum(a,n));
}
return 0;
}
void read(double a[],int n){
int i;
printf(" Enter %d Values",n);
for(i=0;i<n;i++){
   scanf("%lf",&a[i]);
}
}
double sum(double a[],int n){
   double total=0.0;
   int i;
   for(i=0;i<n;i++){
   total=total + a[i];
}
return total;
}
void print(double a[],int n){
   int i;
   for(i=0;i<n;i++){
   printf(" %lf",a[i]);
}
}

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