C++ Deque push_back() Usage and Example

C++ Deque (Double-Ended Queue)

C ++ The Deque push_back() function adds a new element to the end of the deque container, and the size of the container increases by one.

Syntax

void push_back(value_type val);

Parameter

val：The new value to be inserted at the end of the deque container.

Return Value

It does not return any value.

Example1

Let's see a simple example

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 << " \t ";
　　　　return 0;
　　}

Output:

10　20　30　40　50

In this example, the push_back() function adds a new element to the end of the deque, that is50.

C++ Deque (Double-Ended Queue)