In C++, input and output operations are commonly performed using the Standard Input/Output Library, which includes the <iostream> header. This library provides the cin and cout objects for reading input and displaying output, respectively. Here's how to use input and output statements in C++:

Input Statements:

1. Reading Data with cin:

   • 1.To read data from the user, you can use the cin object, which is associated with the standard input (usually the keyboard).
   • 2. Use the >> operator to extract data from the input stream and store it in variables.

Output Statements:

Displaying Data with cout:

1. • 1. To output data to the console, you can use the cout object, which is associated with the standard output (usually the console).
   • 2. Use the << operator to insert data into the output stream.
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#include<iostream.h>

#include<conio.h>

void main()

{

int a,b,c;

clrscr();

cout<<"Enter 1st number\n";

cin>>a;

cout<<"Enter 2nd number\n";

cin>>b;

c=a+b;

cout<<"Sum is  "<<c;

getch();

}