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  1. //Cameron Pham             CS1A                       Chapter 8, p. 488, #5
  2. //
  3. /******************************************************************************
  4. * CALCULATE RAINFALL STATISTICS
  5. * ______________________________________________________________________________
  6. * This program accepts a double value for the total rainfall for each of 12 
  7. * months and stores the value in an array of doubles. It calculates and displays
  8. * the total rainfall, average monthly rainfall, and it sorts the months by
  9. * rainfall.
  10. * ______________________________________________________________________________
  11. * INPUT
  12. * Rainfall				// Rainfall amount for each month
  13. * 
  14. * OUTPUT
  15. * Total rainfall		// Total rainfall for the year
  16. * Average rainfall		// Average monthly rainfall
  17. *******************************************************************************/
  18. #include <iostream>
  19. #include <iomanip>
  20. #include <string>
  21. using namespace std;
  22. int main()
  23. {
  24.     // Initialize Variables
  25.     const int MONTHS = 12;
  26.     string monthNames[MONTHS] =
  27.     {
  28.         "January", "February", "March", "April",
  29.         "May", "June", "July", "August",
  30.         "September", "October", "November", "December"
  31.     };
  32.     double rainfall[MONTHS];    // Rainfall for each month
  33.     double totalRainfall = 0.0; // Total rainfall for the year
  34.     double averageRainfall;     // Average monthly rainfall
  35.     double tempRainfall;        // Temporary rainfall value
  36.     string tempMonth;           // Temporary month name
  37.     int maxIndex;               // Index of highest rainfall
  38.     // Get the rainfall for each month
  39.     for (int count = 0; count < MONTHS; count++)
  40.     {
  41.         cout << "Enter rainfall for " << monthNames[count] << ": ";
  42.         cin >> rainfall[count];
  43.         // Validate the rainfall amount
  44.         while (rainfall[count] < 0)
  45.         {
  46.             cout << "Rainfall cannot be negative. Enter again: ";
  47.             cin >> rainfall[count];
  48.         }
  49.         totalRainfall += rainfall[count];
  50.     }
  51.     // Calculate the average monthly rainfall
  52.     averageRainfall = totalRainfall / MONTHS;
  53.     // Sort rainfall from highest to lowest using selection sort
  54.     for (int start = 0; start < MONTHS - 1; start++)
  55.     {
  56.         maxIndex = start;
  57.         for (int count = start + 1; count < MONTHS; count++)
  58.         {
  59.             if (rainfall[count] > rainfall[maxIndex])
  60.             {
  61.                 maxIndex = count;
  62.             }
  63.         }
  64.         // Swap the rainfall amounts
  65.         tempRainfall = rainfall[start];
  66.         rainfall[start] = rainfall[maxIndex];
  67.         rainfall[maxIndex] = tempRainfall;
  68.         // Swap the corresponding month names
  69.         tempMonth = monthNames[start];
  70.         monthNames[start] = monthNames[maxIndex];
  71.         monthNames[maxIndex] = tempMonth;
  72.     }
  73.     // Display the rainfall statistics
  74.     cout << fixed << setprecision(2);
  75.     cout << "\nRainfall Statistics" << endl;
  76.     cout << "------------------------------" << endl;
  77.     cout << "Total rainfall: " << totalRainfall << " inches" << endl;
  78.     cout << "Average rainfall: " << averageRainfall << " inches" << endl;
  79.     // Display months in descending order of rainfall
  80.     cout << "\nMonths Sorted by Rainfall" << endl;
  81.     cout << "------------------------------" << endl;
  82.     for (int count = 0; count < MONTHS; count++)
  83.     {
  84.         cout << monthNames[count] << ": "
  85.              << rainfall[count] << " inches" << endl;
  86.     }
  87.     return 0;
  88. }
Success #stdin #stdout 0s 5348KB
comments (?)
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stdout 
Enter rainfall for January: Enter rainfall for February: Enter rainfall for March: Enter rainfall for April: Enter rainfall for May: Enter rainfall for June: Enter rainfall for July: Enter rainfall for August: Enter rainfall for September: Enter rainfall for October: Enter rainfall for November: Enter rainfall for December: 
Rainfall Statistics
------------------------------
Total rainfall: 43.40 inches
Average rainfall: 3.62 inches

Months Sorted by Rainfall
------------------------------
October: 7.20 inches
July: 6.30 inches
March: 5.80 inches
November: 4.50 inches
May: 4.10 inches
January: 3.50 inches
August: 3.00 inches
December: 2.90 inches
April: 2.40 inches
September: 1.70 inches
February: 1.20 inches
June: 0.80 inches
https://ideone.com/11841E
Chapter 8, p. 488, #5
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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