C++ Deque push_back

The push_back method in a C++ Deque appends a new element to the back of the deque data structure, resulting in an increment in the container's size by one.

Syntax

void  push_back(value_type val);

Parameter

val : The fresh value to be added at the conclusion of the deque container.

Return value

It does not return any value.

Example 1

Let's see a simple example

#include <iostream>
#include<deque>
using namespace std;
int main()
{
    deque<int> d={10,20,30,40};
    deque<int>::iterator itr;
    d.push_back(50);
    for(itr=d.begin();itr!=d.end();++itr)
    cout<<*itr<<" ";
    return 0;
  }

Output:

10 20 30 40 50

In this instance, the push_back method appends a new element, specifically 50, to the tail of the deque.