Question

How to read integers from input into a vector in C++

Answer 1

#include <iostream>
#include <vector>
#include <iterator>
#include <algorithm>

using std::cout;
using std::cin;
using std::endl;
using std::vector;

int main()
{
	vector<int> vec(3);

	cout << "Enter 3 integers: ('e' to end)" << endl;

	std::istream_iterator<int> is_it(cin);

	copy(is_it, std::istream_iterator<int>(), vec.begin());

	for (int i = 0; i < vec.size(); i++) 
		cout << vec[i] << " ";

	cout << endl;

	return 0;
}


/*
run:

Enter 3 integers: ('e' to end)
76
98
12
e
76 98 12

*/

 

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