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  1. //Jeremy Huang CS1A Chapter 4, P. 224, #20
  2. //
  3. /**************************************************************
  4.  *
  5.  * CALCULATE FREEZE OR BOIL SUBSTANCE
  6.  * ____________________________________________________________
  7.  * This program takes user input of a temperature and outputs
  8.  * which substances will freeze or boil at the given
  9.  * temperature.
  10.  * ____________________________________________________________
  11.  * INPUT
  12.  * temperature        : temperature which user inputs
  13.  *
  14.  * OUTPUT
  15.  * N/A                :cout outputs which will freeze or boil
  16.  *
  17.  **************************************************************/
  18. #include <iostream>
  19. using namespace std;
  20.  
  21. int main() {
  22.     const int ETHYL_ALCOHOL_FREEZE = -173;
  23.     const int ETHYL_ALCOHOL_BOIL = 172;
  24.     const int MERCURY_FREEZE = -38;
  25.     const int MERCURY_BOIL = 676;
  26.     const int OXYGEN_FREEZE = -362;
  27.     const int OXYGEN_BOIL = -306;
  28.     const int WATER_FREEZE = 32;
  29.     const int WATER_BOIL = 212;
  30.  
  31.     int temperature;    //INPUT - temperature which user inputs
  32.  
  33.     //User Input
  34.     cout << "Enter a temperature in Fahrenheit: "<<endl;
  35.     cin >> temperature;
  36.  
  37.     //Output Result
  38.     cout << "At " << temperature << "°F, the following substances will freeze:" << endl;
  39.  
  40.     if (temperature <= ETHYL_ALCOHOL_FREEZE) {
  41.         cout << "- Ethyl alcohol" << endl;
  42.     }
  43.     if (temperature <= MERCURY_FREEZE) {
  44.         cout << "- Mercury" << endl;
  45.     }
  46.     if (temperature <= OXYGEN_FREEZE) {
  47.         cout << "- Oxygen" << endl;
  48.     }
  49.     if (temperature <= WATER_FREEZE) {
  50.         cout << "- Water" << endl;
  51.     }
  52.  
  53.     cout << "At " << temperature << "°F, the following substances will boil:" << endl;
  54.  
  55.     if (temperature >= ETHYL_ALCOHOL_BOIL) {
  56.         cout << "- Ethyl alcohol" << endl;
  57.     }
  58.     if (temperature >= MERCURY_BOIL) {
  59.         cout << "- Mercury" << endl;
  60.     }
  61.     if (temperature >= OXYGEN_BOIL) {
  62.         cout << "- Oxygen" << endl;
  63.     }
  64.     if (temperature >= WATER_BOIL) {
  65.         cout << "- Water" << endl;
  66.     }
  67.  
  68. 	return 0;
  69. }
Success #stdin #stdout 0s 5308KB
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stdin
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-600
stdout
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Enter a temperature in Fahrenheit: 
At -600°F, the following substances will freeze:
- Ethyl alcohol
- Mercury
- Oxygen
- Water
At -600°F, the following substances will boil:
https://ideone.com/4JAx4P
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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