Question

How to show only characters that are present in two vectors (intersect the ranges) in C++

Answer 1

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

using std::cout;
using std::endl;
using std::string;
using std::vector;

int main()
{
	string s1("abcdefg");
	string s2("acfhi");

	vector<char> vec1(s1.begin(), s1.end());
	vector<char> vec2(s2.begin(), s2.end());

	vector<char> is;
	set_intersection(vec1.begin(), vec1.end(), vec2.begin(), vec2.end(), back_inserter(is));

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

	cout << endl;

	return 0;
}

/*
run:

acf

*/

 

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