StringStream

stringstream is a stream class to operate on strings. It basically 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

You have to complete the function vector parseInts(string str). str will be a string consisting of comma-separated integers, and you have to return a vector of int representing the integers.

Note If you want to know how to push elements in a vector, solve the first problem in the STL chapter.

Input Format

The first and only line consists of n integers separated by commas.

Output Format

Print the integers after parsing it. 

P.S.: I/O will be automatically handled. You need to complete the function only.

Sample Input

23,4,56

Sample Output

23
4
56

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스트링(string)이 아닌 스트링스트림(stringstream)을 이용하는 간단한 예제 문제이다.

문제 자체가 단순하게 입력받은 문자열을 구분자로 구분하여 숫자만 추출하는 문제이다.

세가지 방법을 남겨놓는다.

예제 #1

예제 #2

예제 #3