STL Tuple Function

#include<bits/stdc++.h>
using namespace std;
int main()
{
    tuple<char, int, double>t1, t2;

    t1 = make_tuple('A', 100, 200.75);

    t2 = make_tuple('B', 300, 400.75);

    cout << "First Tuple :: " << get<0>(t1) << " " << get<1>(t1) << " " << get<2>(t1) << "\n";
    cout << "Second Tuple :: " << get<0>(t2) << " " << get<1>(t2) << " " << get<2>(t2) << "\n";

    get<1>(t1) = 150;
    get<2>(t1) = 250.75;

    cout << "\nFirst Tuple After Value Change :: " << get<0>(t1) << " " << get<1>(t1) << " " << get<2>(t1) << "\n";

    t1.swap(t2);

    cout << "\nAfter Swap :: \n";
    cout << "First Tuple :: " << get<0>(t1) << " " << get<1>(t1) << " " << get<2>(t1) << "\n";
    cout << "Second Tuple :: " << get<0>(t2) << " " << get<1>(t2) << " " << get<2>(t2) << "\n";

    cout << "\nFirst Tuple Size :: " << tuple_size<decltype(t1)>::value << "\n";

    auto t3 = tuple_cat(t1, t2);

    cout << "\nThird Tuple is :: ";
    cout << get<0>(t3) << " " << get<1>(t3) << " " << get<2>(t3) << " " << get<3>(t3) << " " << get<4>(t3) << " " << get<5>(t3) << "\n";
    
    return 0;
}