In this challenge, we work with string streams.
stringstream is a stream class to operate on strings. It implements input/output operations on memory (string) based streams. stringstream can be helpful in different type of parsing. The following operators/functions are commonly used here
- Operator >> Extracts formatted data.
- Operator << Inserts formatted data.
- Method str() Gets the contents of underlying string device object.
- Method str(string) Sets the contents of underlying string device object.
Its header file is sstream.
One common use of this class is to parse comma-separated integers from a string (e.g., "23,4,56").
stringstream ss("23,4,56"); char ch; int a, b, c; ss >> a >> ch >> b >> ch >> c; // a = 23, b = 4, c = 56
Here is a storage area for the discarded commas.
>> operator returns a value, that is a true value for a conditional. Failure to return a value is false.
Given a string of comma delimited integers, return a vector of integers.
Complete the parseInts function in the editor below.
parseInts has the following parameters:
- string str: a string of comma separated integers
- vector<int>: a vector of the parsed integers.
Note You can learn to push elements onto a vector by solving the first problem in the STL chapter.
There is one line of integers separated by commas.
The length of is less than .
23 4 56