"intersection between vector c++" Code Answer's
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intersection between vector c++
#include <algorithm> //std::sort
#include <iostream> //std::cout
#include <string> //std::string
#include <vector> //std::vector
std::vector<std::string> intersection(std::vector<std::string> &v1,
std::vector<std::string> &v2){
std::vector<std::string> v3;
std::sort(v1.begin(), v1.end());
std::sort(v2.begin(), v2.end());
std::set_intersection(v1.begin(),v1.end(),
v2.begin(),v2.end(),
back_inserter(v3));
return v3;
}
int main(){
std::vector<std::string> v1 {"a","b","c"};
std::vector<std::string> v2 {"b","c"};
auto v3 = intersection(v1, v2);
for(std::string n : v3)
std::cout << n << ' ';
}
Source: stackoverflow.com
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