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//program to track rainfall through out a year
#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
// functions
double calculateTotalRainfall (double[], int);
double calculateAverageRainfall (double [], int);
double findHighestAmountRainfall(double[], int, int &);
double findlowestAmountRainfall(double[], int, int &);
//main funtion
int main()
{
const int TotalMonths = 12;
//variables
double totalRainfall;
double averageRainfall;
double HighestAmountRainfall;
double lowestAmountRainfall;
int monthIndexHigh = 0;
int monthIndexLow = 0;
//array to store the total rainfa1l of per month
double monthlyRainfall [TotalMonths];
//array to store names of the months
string namesofMonths[TotalMonths] = {"Jan.", "Feb.", "Mar.", "Apri1", "May", "June", "July", "Aug.", "Sept.", "Oct.", "Nov.","Dec." };
//loop to get amount of rainfall
for(int i = 0; i < TotalMonths; i++)
{
//enter amount of rainfall for each month
cout<< "Please enter the amount of rainfall for the month of " <<namesofMonths[i]<<": ";
cin>>monthlyRainfall[i];
//validation of entry
while(monthlyRainfall[i]<0)
{
cout<< "please enter positive numbers only!"<<endl;
cin>>monthlyRainfall[i];
}
}
//retrieve total rainfall with calc total rainfall function
totalRainfall= calculateTotalRainfall(monthlyRainfall, TotalMonths);
//retrieve Avg rainfall for the year
averageRainfall= calculateAverageRainfall(monthlyRainfall, TotalMonths);
//retrieve highest amount of rainfall
HighestAmountRainfall= findHighestAmountRainfall(monthlyRainfall, TotalMonths, monthIndexHigh);
//retrieve lowest amount of rainfall
lowestAmountRainfall= findlowestAmountRainfall(monthlyRainfall, TotalMonths, monthIndexLow);
//display results
cout<< fixed<< showpoint<< setprecision(2)<<endl;
cout<< "Total Rainfall for the year: "<<totalRainfall<<endl;
cout<< "Avg. Rainfall for the year: "<<averageRainfall<<endl;
cout<< "Highest Amount of Rainfall for the year: "<<HighestAmountRainfall<<"for the month of "<<namesofMonths[monthIndexHigh]<<endl;
cout<< "Lowest Amount of Rainfall for the year: "<<lowestAmountRainfall<<"for the month of "<<namesofMonths[monthIndexLow]<<endl;
system("pause");
return 0;
}
//total rainfall function
double calculateTotalRainfall (double amounts[], int n)
{
double totalAmount = 0;
//total rainfall
for (int i = 0; 1 < n; i++)
totalAmount += amounts[i];
return totalAmount;
}
//Avg rainfall function
double calculateAverageRainfall (double amounts[], int n)
{
double averageAmount = 0.0;
double totalAmount = 0;
//avg rainfall
for (int i = 0; 1 < n; i++)
totalAmount += amounts[i];
averageAmount = totalAmount/n;
return totalAmount;
}
//highest amount of rainfall function
double findHighestAmountRainfall(double amounts[], int n, int & monthlndex)
{
double highestAmount;
//get the highest amount of rainfall
int i = 0;
highestAmount = amounts[i];
while(i < n)
{
if (amounts[i] > highestAmount)
{
highestAmount = amounts [i];
monthlndex= i;
}
i++;
}
return highestAmount;
}
//Lowest amount of rainfall function
double findlowestAmountRainfall(double amounts[], int n, int & monthlndex)
{
double lowestAmount;
//get the lowest amount of rainfall
int i = 0;
lowestAmount = amounts[i];
while(i < n)
{
if (amounts[i] < lowestAmount)
{
lowestAmount = amounts [i];
monthlndex= i;
}
i++;
}
return lowestAmount;
}
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