#include <vector>
#include <string>
#include <set>
 
#include <algorithm>
 
int main()
{
        std::vector<int> v1;
        std::sort(v1.begin(), v1.end()); //Compiles happily with integers
 
        std::vector<double> v2;
        std::sort(v2.begin(), v2.end()); //Compiles happily with doubles
 
        std::vector<std::string> v3;
        std::sort(v3.begin(), v3.end()); //Compiles happily with std::string
 
        std::set<int> s1;
        s1.find(int()); //Compiles happily with integers
 
        std::set<double> s2;
        s2.find(double()); //Compiles happily with doubles
 
        std::set<std::string> s3;
        s3.find(std::string()); //Compiles happily with std::string
 
	return 0;
}

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