#include <iostream>
#include <vector>
#include <algorithm>
using std::cout;
using std::endl;
using std::vector;
double avg(double a, double b)
{
return (a + b) / 2 ;
}
int main()
{
vector<double> vec1{ 1, 2, 3, 4, 5 }, vec2{ 10, 20, 30, 40, 50 }, vec3(5);
transform(vec1.begin(), vec1.end(), vec2.begin(), vec3.begin(), avg);
for (double val : vec3)
cout << val << " ";
cout << endl;
return 0;
}
/*
run:
5.5 11 16.5 22 27.5
*/