How to Push All Elements from a Vector to a Queue in C++? Last Updated : 09 Feb, 2024 Comments Improve Suggest changes Like Article Like Report In C++, vectors are dynamic arrays while the queue is a data structure that follows the FIFO (First In First Out) property. In this article, we will learn how to push all elements from a vector to a queue in C++. Example Input: myVector = {1, 5, 8, 9, 4} Output: myQueue = 1 5 8 9 4Copy All Vector Elements into the Queue in C++We cannot directly push all the elements of the vector into the queue. We have to push them one by one. We can create a loop to iterate through the vector and keep pushing each element into the queue using the std::queue::push() function. C++ Program to Push Vector Elements into a QueueThe below example demonstrates how we can push all vector elements into a queue. C++ // C++ program to push vector elements into queue #include <iostream> #include <queue> #include <vector> using namespace std; int main() { // Initialize a vector with some elements vector<int> vec = { 1, 2, 3, 4, 5 }; // Declare a queue queue<int> q; // Iterate through the vector and push elements to the // queue for (int element : vec) { q.push(element); } // Print elements of the queue to verify cout << "Elements in the queue: "; while (!q.empty()) { cout << q.front() << " "; q.pop(); } return 0; } OutputElements in the queue: 1 2 3 4 5 Time Complexity: O(N)Auxiliary Space: O(N) Note: We can also use queue constructor in C++23 to directly construct a queue and initializing it with vector elements. Comment More infoAdvertise with us Next Article How to Push All Elements from a Vector to a Queue in C++? S shravanngoswamii Follow Improve Article Tags : C++ Programs C++ STL cpp-vector cpp-queue CPP Examples +2 More Practice Tags : CPPSTL Similar Reads How to Delete All Elements from a Vector in C++? In C++, you can delete all items from a vector to either clear its contents or free its memory. In this article, we will learn how to delete all items from a vector in C++.The recommended way to delete all items from a vector is by using the vector clear() function. Letâs take a look at a simple exa 2 min read How to Remove an Element from Vector in C++? In this article, we will learn how to remove a given element from the vector in C++.The most straightforward method to delete a particular element from a vector is to use the vector erase() method. Let's look at a simple example that shows how to use this function:C++#include <bits/stdc++.h> u 2 min read How to Extract a Subvector from a Vector in C++? A subvector is a continuous part from the original vector. 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