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Your programs need to get data from users and display results. I will show you how to read different types, handle errors, and format output.
The Goal
The extraction operator
Reading from the input buffer
Integer input
Floating-point input
Input operations
Character input
Test your understanding
Chained extraction
Sequential reads
Reading in correct sequence
Test your understanding
String extraction
Spaces terminate extraction
Reading entire lines
Common mixing error
Apply a formula
Reading full lines
Discarding leftover characters
Why inputs fail
Understanding failure state
Knowledge check
Detecting read errors
Controlling output appearance
Controlling decimal digits
Counter-based loop
Notation styles
Field width control
Conditional execution
Reading unknown quantity
Processing all input
User-controlled termination
Practice reading and computing
Practice string input
First CF problem
Main approach
How to solve
Knowledge check
Complete solution
What we learned
Multiple test cases
Main approach
Handle n test cases
Large integers
How to solve
Complete solution
What we learned
What we learned