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#include <iostream>
#include <vector>
#include <thread>
using namespace std;
void multiply(vector<int> &data, int factor)
{
cout << "multiply " << data.size() << " elements\n";
for (auto &el: data)
el *= factor;
}
void divide(vector<int> &data, int factor)
{
cout << "divide " << data.size() << " elements\n";
for (auto &el: data)
el /= factor;
}
int main()
{
vector<int> data {1,2,3,4,5,6,7,8,9,10};
thread t1(multiply, ref(data), 5);
thread t2(divide, ref(data), 5);
t1.join();
t2.join();
}
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