Question

Design a program that uses nested loops to collect data and calculate the average rainfall over a period of years. The program should first ask for the number of years. The outer loop will iterate once for each year. The inner loop will iterte twelve times, onece for each month. Each itertion of the inner loop will ask the user for the inches of rainfall for tht month. After all iterations, the program should display the number of months, the total inches of rainfall, and the average rainfall per month for the entire period. Needed for C++

Answer 1

Screenshot of the code with explanation:

The Screenshot of the input/output:

The Code Used:

#include<iostream>
using namespace std;
int main()
{
   int i,j,years,months; //variables to store the number of months and years.
   double totalRain,average,rain; //variables to store the total ammount of rainfall, average rainfall and the rain.
  
   cout<<"Enter the number of years: "; //Taking the number of years as input.
   cin>>years;
  
   totalRain = 0.0; //Initializing to totalRain to 0.
  
   for(i=1;i<=years;i++) //Outer looper iterates for
   {
       cout<<"Enter the details of rainfall for year "<<i<<endl; //Taking the rainfall for 1 year at a time.
       for(j=1;j<=12;j++) //The inner loop iterates for 12 times one for each months.
       {
           cout<<"Enter the raifall for "<<j<<" month: "; //taking the rainfall for a particular month in an year.
           cin>>rain;
           totalRain = totalRain + rain; //adding the rainfall to the total rainfall.
           months++; //incrementing the number of months.
       }
   }
  
   average = totalRain/months; //calculating the average.
  
   //printing the gathered details.
   cout<<"The total number of months: "<<months<<endl;
   cout<<"The total Rainfall: "<<totalRain<<endl;
   cout<<"The average Rainfall per month: "<<average;
  
   return 0;
  
}

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