#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>
using namespace std;
int main() {
vector<int> vector1 = {0, 1, 3, 21, 22, 23, 24, 25};
vector<int> vector2 = {0, 1, 3, 22, 24, 25};
vector<int> difference;
set_difference(vector1.begin(), vector1.end(), vector2.begin(), vector2.end(), back_inserter(difference));
cout << "Unterschiede: ";
for (auto i: difference)
cout << i << ' ';
}
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