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2. Variables and types
Input and output
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Reading 1
Streams go both ways
cout (console output) prints. cin (console input) reads.
The operator << sends data toward cout. The operator >> pulls data from cin into a variable.
When a lesson or assignment provides input, that text is fed to cin as if the user typed it.
int n;
cin >> n;
cout << "You entered " << n << endl;Check 2
Reading input
Which operator is used with cin to read a value into a variable?
Try it 3
Echo a number
This playground already has sample input 7. Run it, then change the input box and run again.
main.cpp
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Output will appear here.
Assignment 4
Add two integers
Read two integers from input and print their sum, followed by a newline.
main.cpp
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