Get first element of tuple c++

#include <iostream>
#include <string>
#include <tuple>
 
auto t = std::make_tuple(1, "Foo", 3.14);
// index-based access
std::cout << "(" << std::get<0>(t) << ", " << std::get<1>(t)<< ", " << std::get<2>(t) << ")\n";
// type-based access (C++14 or later)
std::cout << "(" << std::get<int>(t) << ", " << std::get<const char*>(t) << ", " << std::get<double>(t) << ")\n";

Source: en.cppreference.com

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