#include <iostream>
#include<map>
#include<string>
#include<vector>
#include <functional>
using namespace std;
void func(const std::map<string, int>& input) {
auto it1 = input.find("m1");
if(it1!=input.end())
{
cout << it1->second << endl;
}
else
{
std::cout<<"element cannot be found"<<std::endl;
}
}
int main()
{
func({{"m1", 1}, {"m2", 2}});
return 0;
}