list in cpp
#include <iostream>
#include <list>
#include <iterator>
using namespace std;
//function for printing the elements in a list
void showlist(list <int> g)
{
list <int> :: iterator it;
for(it = g.begin(); it != g.end(); ++it)
cout << '\t' << *it;
cout << '\n';
}
int main()
{
list <int> gqlist1, gqlist2;
for (int i = 0; i < 10; ++i)
{
gqlist1.push_back(i * 2);
gqlist2.push_front(i * 3);
}
cout << "\nList 1 (gqlist1) is : ";
showlist(gqlist1);
cout << "\nList 2 (gqlist2) is : ";
showlist(gqlist2);
cout << "\ngqlist1.front() : " << gqlist1.front();
cout << "\ngqlist1.back() : " << gqlist1.back();
cout << "\ngqlist1.pop_front() : ";
gqlist1.pop_front();
showlist(gqlist1);
cout << "\ngqlist2.pop_back() : ";
gqlist2.pop_back();
showlist(gqlist2);
cout << "\ngqlist1.reverse() : ";
gqlist1.reverse();
showlist(gqlist1);
cout << "\ngqlist2.sort(): ";
gqlist2.sort();
showlist(gqlist2);
return 0;
}
//code by Soumyadeep Ghosh
//ig: @soumyadepp
#include <bits/stdc++.h>
using namespace std;
void display_list(list<int>li)
{
//auto variable to iterate through the list
for(auto i:li)
{
cout<<i<<" ";
}
}
int main()
{
//definition
list<int>list_1;
int n,x;
cin>>n;
//taking input and inserting using insert function
for(int i=0;i<n;i++)
{
cin>>x;
list_1.insert(x);
}
//if list is not empty display it
if(list_1.empty()==false)
{
display_list(list_1);
}
list_1.sort(); //sorts the list
list_1.reverse(); //reverses the list
list_1.pop_back(); //deletes last element of the list
list_1.pop_front(); //deletes the first element of the list
display_list(list_1); //function to display the list
return 0;
}
//in addition , you can use nested lists such as list<list<int>> or list<vector<list>> etc
