StringStream in C++ - Hacker Rank Solution
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| StringStream in C++ - Hacker Rank Solution |
Problem
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
Solution :-
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//StringStream in C++ - Hacker Rank Solution #include <sstream> #include <vector> #include <iostream> using namespace std; vector<int> parseInts(string str) { // Complete this function stringstream ss(str); vector<int> result; char ch; int tmp; while (ss >> tmp) { result.push_back(tmp); ss >> ch; } return result; } int main() { string str; cin >> str; vector<int> integers = parseInts(str); for(int i = 0; i < integers.size(); i++) { cout << integers[i] << "\n"; } return 0; } |
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