Initializing an empty List and pushing values one by one

2. Specifying List size and initializing all values

The standard way to initialize a list is to first create an empty list and then elements are added to that list using the inbuilt list_name.push_back() method.

Syntax:

list<data_type> li;

li.push_back(ele);

// Here list li is initialized and element ele is inserted into that list.

Example:

C++

// C++ program to create an empty List
// and push values one by one.
#include <bits/stdc++.h>
using namespace std;
 
int main()
{
    // Create an empty List
    list<int> li;
 
    // Adding values to the List
    li.push_back(10);
    li.push_back(20);
    li.push_back(30);
     
     
    // Printing the List
    for (int x : li)
        cout << x << " ";
 
    return 0;
}

Output

10 20 30

Different Ways to Initialize a List in C++ STL

Prerequisite: List in C++

Lists are sequence containers that allow non-contiguous memory allocation The following are the different ways to create and initialize a List in C++ STL.

Initializing an empty List and pushing values one by one
Specifying List size and initializing all values
Initializing List like the arrays
Initializing a list from an array
Initializing a list from a vector
Initializing a list from another List
Initializing the List using the fill() function
Using a lambda expression and the generate() function:

Initializing an empty List and pushing values one by one

C++

Different Ways to Initialize a List in C++ STL

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