Answer:
double rainfall[30];
Step-by-step explanation:
Here we are declared an onе dimеnsional array named " rainfall " of size 30 and type double.To declared a onе dimеnsional array we can use the following syntax.
datatype array-name[size];
So double rainfall[30];
Following are the program in c++
#include<iostream> // header file
using namespace std; // namespace
int main() // main method
{
double rainfall[30]={45.5,78.9,67.78}; // array declaration and storing values
for(int i=0;i<3;++i) // iterating loop
{
cout<<rainfall[i]<<endl; // printing the array elements
}
return 0;
}
Output:
45.5
78.9
67.78