Quick reference for my codeforces solutions

sorted vector of pairs 101 .cpp

#include<bits/stdc++.h>
using namespace std;

int main() {
    // https://en.cppreference.com/w/cpp/utility/pair/operator_cmp
    // ----- Output -------
    // (1,foo)
    // (2,bar)
    // (2,baz)

    // ---------------------------------------------------------------------------------------------------

    std::vector<std::pair<int, std::string>> v = { {2, "baz"},
                                                   {2, "bar"},
                                                   {1, "foo"} };
    std::sort(v.begin(), v.end());
 
    for(auto p: v) {
        std::cout << "(" << p.first << "," << p.second << ")\n";
    }

    // ---------------------------------------------------------------------------------------------------
    return 0;
}

sorted vector of tuple 101 .cpp

#include<bits/stdc++.h>
using namespace std;

int main() {
    int x = 24;
    int age;
    string name, gender;
    float height;
    int wedith;
    std::vector<tuple<string, int, string, float, int>> v;
    for (auto i = 0; i < 3; ++i)
    {
        cin >> age >> name >> gender >> height >> wedith;
        v.push_back( make_tuple ( name, age, gender, height, wedith ) );
    }

    sort( v.begin(), v.end() );

    for (auto i = 0; i != v.size(); ++i)
    {
        cout << get<0>( v[i] ) << " " << get<1>( v[i] ) << " "<< get<2>( v[i] ) << " "<< get<3>( v[i] ) << " "<< get<4>( v[i] ) << "\n";
    }

    // ---------------------------------------------------------------------------------------------------
    return 0;
}

tuple - 2 - myOwnCode .cpp

#include<bits/stdc++.h>
using namespace std;

int main() {
    // Thanks : http://www.cplusplus.com/reference/tuple/tuple/
    //
    // ---------------------------------------------------------------------------------------------------
                        // Name, Age, Gender, Height, Weight
    auto s1 = make_tuple( "Lisa Simpson", 24, "Female", 1.7F, 60 );
    auto s2 = make_tuple( "Bart Simpson", 25, "Male", 1.8F, 80 );

    cout << get<0>( s2 );   // s2 > Name
    cout << '\n';           // ----------
    
    cout << get<2>( s2 );   // s2 > Gender
    cout << '\n';           // ----------
    
    get<4>( s2 ) = 800;     // Access & change
    cout << get<4>( s2 );   // s2 > Gender
    cout << '\n';           // ----------

    cout << tuple_size<decltype( s2 )>::value;      // num of tuple elements
    cout << '\n';           // ----------

    
    // ---------------------------------------------------------------------------------------------------
    return 0;
}

tuple -1 .cpp

#include<bits/stdc++.h>
using namespace std;

int main() {
    // Example 1 - tuple
    // tuple : https://en.cppreference.com/w/cpp/utility/tuple
    // ---------------------------------------------------------------------------------------------------

    

    // ---------------------------------------------------------------------------------------------------
    return 0;
}

اقرأ https://www.geeksforgeeks.org/sorting-vector-tuple-c-ascending-order/

https://docs.google.com/spreadsheets/d/1eAjMP3SQuDvbS6vcjhP83mFvvs8uiVOHN7L0bu-NGl8/edit?usp=sharing