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  1. //Diego Martinez					CSC5				   Chapter 4, P.223,#14
  2. /*******************************************************************************
  3. * RANKING RUNNERS BY FASTEST TIME
  4. * ______________________________________________________________________________
  5. * The program asks the user to enter the names of three runners and the time 
  6. * each one took to finish a race. It ensures that all entered times are positive
  7. * numbers by validating the input and prompting the user again if an invalid 
  8. * value is entered.
  9. * 
  10. * 
  11. * Computation is based on the Formula:
  12. *	Order runners by increasing time:
  13. *		smallest → 1st
  14. *		middle   → 2nd
  15. *		largest  → 3rd
  16. * ____________________________________________________________________________
  17. * INPUT
  18. *	Runner 1 : name and time finished
  19. *	Runner 2 : name and time finished 
  20. *	Runner 3 : name and time finished 
  21. * OUTPUT
  22. *	1st Place : runner with the fastest time
  23. *	2nd Place : runner with the second fastest time
  24. *	3ed Place : runner with the slowest time 
  25. *******************************************************************************/
  26. #include <iostream>
  27. #include <string>
  28. using namespace std;
  29.  
  30. int main() {
  31.     string name1, name2, name3;
  32.     double time1, time2, time3;
  33.  
  34.     // Input names
  35.     cout << "Enter the name of runner 1: ";
  36.     getline(cin, name1);
  37.  
  38.     cout << "Enter the name of runner 2: ";
  39.     getline(cin, name2);
  40.  
  41.     cout << "Enter the name of runner 3: ";
  42.     getline(cin, name3);
  43.  
  44.     // Input times with validation
  45.     cout << "Enter the time for " << name1 << ": ";
  46.     cin >> time1;
  47.     while (time1 <= 0) {
  48.         cout << "Invalid input. Time must be a positive number. Enter again: ";
  49.         cin >> time1;
  50.     }
  51.  
  52.     cout << "Enter the time for " << name2 << ": ";
  53.     cin >> time2;
  54.     while (time2 <= 0) {
  55.         cout << "Invalid input. Time must be a positive number. Enter again: ";
  56.         cin >> time2;
  57.     }
  58.  
  59.     cout << "Enter the time for " << name3 << ": ";
  60.     cin >> time3;
  61.     while (time3 <= 0) {
  62.         cout << "Invalid input. Time must be a positive number. Enter again: ";
  63.         cin >> time3;
  64.     }
  65.  
  66.     // Determine order
  67.     string first, second, third;
  68.  
  69.     if (time1 <= time2 && time1 <= time3) {
  70.         first = name1;
  71.         if (time2 <= time3) {
  72.             second = name2;
  73.             third = name3;
  74.         } else {
  75.             second = name3;
  76.             third = name2;
  77.         }
  78.     }
  79.     else if (time2 <= time1 && time2 <= time3) {
  80.         first = name2;
  81.         if (time1 <= time3) {
  82.             second = name1;
  83.             third = name3;
  84.         } else {
  85.             second = name3;
  86.             third = name1;
  87.         }
  88.     }
  89.     else {
  90.         first = name3;
  91.         if (time1 <= time2) {
  92.             second = name1;
  93.             third = name2;
  94.         } else {
  95.             second = name2;
  96.             third = name1;
  97.         }
  98.     }
  99.  
  100.     // Output results
  101.     cout << "\nRace Results:\n";
  102.     cout << "1st place: " << first << endl;
  103.     cout << "2nd place: " << second << endl;
  104.     cout << "3rd place: " << third << endl;
  105.  
  106.     return 0;
  107. }
Success #stdin #stdout 0.01s 5312KB
comments (?)
stdin
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Oscar 
Jen 
Bill
5
8
4
stdout
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Enter the name of runner 1: Enter the name of runner 2: Enter the name of runner 3: Enter the time for Oscar : Enter the time for Jen : Enter the time for Bill: 
Race Results:
1st place: Bill
2nd place: Oscar 
3rd place: Jen
https://ideone.com/7hlqFA
RANKING RUNNERS BY FASTEST TIME P.223, #14
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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