Question

Can you write a function that takes 2 vectors as parameters and returns a larger vector containing the two vectors

Example
Vector a: 1 2 3 4 5
Vector b: 6 7 8 9 10
Concatenated vector: 1 2 3 4 5 6 7 8 9 10

Answer 1

In C++

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

// this is the function which concats two vector and prints result data
void concat(std::vector<int>& a, const std::vector<int>& b) {
a.insert(a.end(), b.begin(), b.end());
std::copy(
a.begin(),
a.end(),
std::ostream_iterator<int>(std::cout, " ")
);
}

int main(int argc, char** argv) {
std::vector<int> a{1,2,3,4,5};
std::vector<int> b{6,7,8,9,10};
concat(dest, src);

return 0;
}

In Java:

import java.util.Vector;

public class MergeVector {

static void concat(Vector<Integer> Va, Vector<Integer> Vb) {

Vector<Integer> merge = new Vector<Integer>();

merge.addAll(Va);

merge.addAll(Vb);

System.out.print("Concatenated Vector: ");

for(Integer in: merge) {

System.out.print(in +" ");

}

}

public static void main(String[] args) {

Vector<Integer> Va = new Vector<Integer>();

Vector<Integer> Vb = new Vector<Integer>();

Va.add(1);

Va.add(2);

Va.add(3);

Va.add(4);

Va.add(5);

Vb.add(6);

Vb.add(7);

Vb.add(8);

Vb.add(9);

Vb.add(10);

concat(Va, Vb);

}

}

Output: