#include <iostream>
#include <vector>
#include <string>
#include <ctime>
#include <cstdlib>
using namespace std;

int main ()
{
   cout << "Color-me-Rad Guessing Game! \n" << endl; 
   cout << "Lets play a game!\n" << endl;
   cout << "Guess the color using only the hint that is given to you." << endl; 
   cout << "You only have three tries! GOOD LUCK! \n" << endl;

   //declarations
   vector <string> Colors;
   vector <string> Hints;
   int number = 0;
   int option = 0;
   int guessCount = 1;
   const int guesses = 3;
   string answer, color; 

   Colors.push_back("red");
   Colors.push_back("yellow");
   Colors.push_back("purple");
   Colors.push_back("blue");
   Colors.push_back("green");
   Colors.push_back("orange");
	
   Hints.push_back("\nThe color of Ariel's hair in Disney's The Little Mermaid: ");
   Hints.push_back("\nThe most common color of a glass of lemonade: ");
   Hints.push_back("\nMixing blue and red gives you this color: ");
   Hints.push_back("\nThe color of nobility, calmness, and serenity: ");
   Hints.push_back("\nThis is the color of the forest: ");
   Hints.push_back("\nThe color of the sunset: ");

   srand((unsigned) time(NULL));
   number = rand(); 
   option = number % 6;
	

   do{
   number = rand() % Colors.size();
   guessCount = 1;
      for (unsigned int i = 0; i < guesses; ++i){
	cout << Hints.at(number);
	getline(cin, color);	
	cin.clear();

	if (color == Colors.at(number)){
	    cout << "Good Job!";
	    i = guesses;
	    }
	else {
	    cout << "That is incorrect. Please try again.";
	    getline(cin, color);
	    cin.clear();
	    guessCount++;
	}
	    if (guessCount == 4){
		cout << "Good try, but none of your answers were correct"
		<< "\nThe correct answer is " << Colors.at(number) << "\n" << endl;
	    }
        }
	    cout << "\n\nDo you want to play another round==> ";
	    getline(cin,answer);
   } while (answer == "yes, Yes, Y, YES"); 
        cout << "Thank you for playing. GOOD BYE!" << endl;
			
	return 0;
}
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Read inputs from stdin

OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.

#include <iostream>
#include <string>
using namespace std;

int main() 
{
    string name;
    cout << "Enter name:";
    getline (cin, name);
    cout << "Hello " << name;
    return 0;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
   //code
}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

switch(conditional-expression){    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
......    
    
default:     
 code to be executed when all the above cases are not matched;    
}

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
}

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
// code 
}

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
 // code 
} while (condition);

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}