// This program illustrates the use of a sentinel in a while loop. // The user is asked for monthly rainfall totals until a sentinel// value of -1 is entered. Then the total rainfall is displayed.#includeusing namespace std;int main(){// Fill in the code to define and initialize to 1 the variable monthfloat total = 0, rain;cout << "Enter the total rainfall for month "<< month << endl;cout << "Enter -1 when you are finished" << endl;// Fill in the code to read in the value for rain// Fill in the code to start a while loop that iterates// while rain does not equal -1{// Fill in the code to update total by adding it to rain cout << "Enter the total rainfall in inches for month "<< month << endl;cout << "Enter -1 when you are finished" << endl;// Fill in the code to read in the value for rain} // end of while loopif (month == 1)cout << "No data has been entered" <
// This
// value of -1 is entered. Then the total rainfall is displayed.
#include<iostream>
using namespace std;
int main()
{
// Fill in the code to define and initialize to 1 the variable month
float total = 0, rain;
cout << "Enter the total rainfall for month "
<< month << endl;
cout << "Enter -1 when you are finished" << endl;
// Fill in the code to read in the value for rain
// Fill in the code to start a while loop that iterates
// while rain does not equal -1
{
// Fill in the code to update total by adding it to rain cout << "Enter the total rainfall in inches for month "
<< month << endl;
cout << "Enter -1 when you are finished" << endl;
// Fill in the code to read in the value for rain
} // end of while loop
if (month == 1)
cout << "No data has been entered" <<endl;
else
cout << "The total rainfall for the " << month-1
<< " months is "<< total << " inches." << endl;
return 0;
} // end of main()
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