Delete elements in C++ STL list

IIn this tutorial, we will be discussing a program to understand how to delete elements in the C++ STL list.

For this, we will be using the pop_back() and pop_front() function to delete the element from last and the front respectively.

Example

 Live Demo

#include<iostream>
#include<list>
using namespace std;
int main(){
   list<int>list1={10,15,20,25,30,35};
   cout << "The original list is : ";
   for (list<int>::iterator i=list1.begin(); i!=list1.end();i++)
   cout << *i << " ";
   cout << endl;
   //deleting first element
   list1.pop_front();
   cout << "The list after deleting first element using pop_front() : ";
   for (list<int>::iterator i=list1.begin(); i!=list1.end(); i++)
   cout << *i << " ";
   cout << endl;
   //deleting last element
   list1.pop_back();
   cout << "The list after deleting last element using pop_back() : ";
   for (list<int>::iterator i=list1.begin(); i!=list1.end(); i++)
   cout << *i << " ";
   cout << endl;
}

Output

The original list is : 10 15 20 25 30 35
The list after deleting first element using pop_front() : 15 20 25 30 35
The list after deleting last element using pop_back() : 15 20 25 30

Ayush Gupta

Published on 23-Mar-2020 08:47:55

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