#include<conio.h>
#include<iostream>
#include<conio.h>
#include<stdlib.h>
#include<dos.h>
#include<shashi.h> // header file is created by me which contains the definitions of delay,setcolot,gotoxy,and some others functions
using namespace std;
void heart()

{       int i,j,n=3;
    while(1)//for infinately use for the heart to be created.
    {            n=3;
                delay(500);
        setcolor(10);
        cout<<"\n\n\t";
        for(i=1;i<=n;i++)//loop for upper part
        {   setcolor(i+5);//IN Turbo C++ use "textcolor" instead of setcolor
                delay(500);  //Delay is used to delay the program execution

            for(int j=1;j<=(n-i);j++)//loop for space for upper part
                cout<<" ";

            for(j=1;j<=i+2;j++)//upper part  1st tomb pattern
               {cout<<"* ";
                setcolor(i+j);
               }

            for(j=1;j<=2*(n-i);j++)//upper part  2nd tomb pattern
                cout<<" ";
            for(j=1;j<=i+2;j++)
                {cout<<"* ";
                 setcolor(i+5);
                }
                cout<<"\n\t";
        }

        n=11;
        for(i=1;i<=n;i++)//loop for rest triangle
        {    delay(500);
            for(j=1;j<=2*i-j;j++)
               {    if(i==1)
                   cout<<" ";
                   if(i>1)
                    cout<<"  ";
               }

            for(j=1;j<=(n-i*2);j++)
               {cout<<"* ";
                setcolor(i);
               }

            cout<<"\n\t";
        }
                gotoxy(20,20);cout<<"::Created by shashi::";//gotoxy is used to set cursor position rowwise and columnwise
                delay(500);
                system("cls");//In Turbo C++ use clrscr() in place of system("cls")
    }//End of while loop

}
int main()
{
    heart();
    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
}