C++ 7-2 Calculating Rainfall - Total, Average, Min and Max values in Array

calcTotalMaxMinAVG.cpp

/*Write a program that lets the user enter the total rainfall for each of 12 months into an array of doubles.
The program should calculate and display the total rainfall for the year,the average monthly rainfall, and the months with the highest 
and lowest amounts. */

#include <iostream>
#include <conio.h>
#include <ctime>
#include <iomanip>
#include <cstdlib>
#include <fstream>
#include <string>
#include <math.h>



using namespace std;



int main() {
	double months[12];
	double largest = 0;
	double smallest = 0;
	double total = 0;
	double avg = 0;
	
	for (int i = 0; i < 12; i++) {
		cout << "Enter the rainfall amount in the month number  " << i + 1 << " :" << endl;
		cin >> months[i];
		
		if (i < 0) {
			cout << "Please enter positive number for the rainfall amount in the month number  " << i + 1 << " :" << i;
			cin >> months[i];
		}
		total += months[i];
	}
	smallest = months[0];
	largest = months[0];

	for (int i = 0; i < 12; i++) {
		if (months[i] < smallest)
			smallest = months[i];
		if (months[i] > largest)
			largest = months[i];
	}
	

	
	avg = total / 12;
	cout << "Total rainfall for the whole year is: " << total << endl;
	cout << "Average rainfall for the year is: " << avg << endl;
	cout << "Largest amount of rainfall in the year is: " << largest << endl;
	cout << "smallest amount of rainfall in the year is: " << smallest << endl;

	_getch();
}