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

/**
 * Returns the singular or plural form of a word, based on number
 *
 * Requires: singular is the singular form of the word.
 *           plural is the plural form of the word.
 *           number determines how many things there are; must be >= 0.
 * Modifies: Nothing.
 * Effects:  Returns return the singular form of the word if number == 1.
 *           Otherwise, returns the plural form.
 * Examples:
 *           // prints "bag"
 *           cout << pluralize("bag", "bags", 1);
 *
 *           // prints "pounds"
 *           string temp = pluralize("pound", "pounds", 3);
 *           cout << temp;
 */
string pluralize(string singular, string plural, int number);



 int main() {
    int numPeople;
    cout << "How many people do you need to serve? " << numPeople << endl << endl;
    int numLoaf = numPeople/4 + 1;
    cout << "You need to make: " <<numLoaf << " loaf of focaccia" << endl << endl;
    cout << "Shopping List for Focaccia Bread" << endl;
    cout << "--------------------------------" << endl;
    int numBag = ceil(static_cast <double> (1/4) * numLoaf + 1 );
    cout << numBag << " bag of flour" << endl;
    int numPackage = ceil(static_cast<double> (7/9) * numLoaf + 1);
    cout << numPackage << " package of yeast" << endl;
    int numCanister = ceil(static_cast <double> (5/16) * numLoaf + 1);
    cout << numCanister << " canister of salt" << endl;
    int numBottle = ceil(static_cast <double> (37/625) * numLoaf + 1);
    cout << numBottle << " bottle of olive oil" << endl << endl;
    double totalCost = (2.69 * numBag) + (0.40 * numPackage) + (0.49 * numCanister) + (6.39 * numBottle);
    cout << "Total expected cost of ingrediants: $" << totalCost << endl << endl;
    cout << "Have a great party!";
    return 0;
}

C++ Online Compiler

Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!

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
}