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#include<iostream>
#include<vector>
#include<set>
template<typename T>
bool is_disjoint(const std::set<T> &s1,
const std::set<T> &s2)
{
for(auto it = s1.cbegin(); it != s1.cend(); ++it)
if(s2.count(*it)) return false;
return true;
}
template<typename T>
bool disjoint_sets(const std::vector<T> &vec1,
const std::vector<T> &vec2)
{
return is_disjoint<T>({vec1.cbegin(),vec1.cend()},
{vec2.cbegin(),vec2.cend()});
}
int main()
{
std::vector<int> vec1{1,2,5,3,4},vec2{4,6,7,8,9};
std::vector<int> vec3{1,3,5,7,9},vec4{0,2,4,6,8};
std::cout << std::boolalpha << disjoint_sets<int>(vec1,vec2) << '\n'
<< disjoint_sets<int>(vec3,vec4) << '\n';
return 0;
}
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