C++ STL - Vector in Reverse Order Last Updated : 02 Nov, 2022 Summarize Comments Improve Suggest changes Share Like Article Like Report Prerequisite: Vectors in C++ A vector can be printed in reverse order with the following methods: By traversing in the backward direction using indexingBy traversing in the backward direction using begin() and end() functions in C++ STLBy traversing in the backward direction using rbegin() and rend() functions in C++ STL Examples: Input: vector = {1, 2, 3, 4, 5} Output: {5, 4, 3, 2, 1} Input: vector = {10,5,20,15,25} Output: {25, 15, 20, 5, 10}1. Traversing the vector in a backward direction using indexing C++ // C++ STL program to print all elements // of a vector in reverse order #include <iostream> #include <vector> using namespace std; int main() { vector<int> vec; vec.push_back(1); vec.push_back(2); vec.push_back(3); vec.push_back(4); vec.push_back(5); // Printing original order cout << "Elements of vector in original order : "; for (int i : vec) { cout << i << " "; } cout << endl; // Printing all elements in reverse order cout << "Elements of vector in reverse order : "; for (int i = vec.size() - 1; i >= 0; i--) cout << vec[i] << " "; return 0; } OutputElements of vector in original order : 1 2 3 4 5 Elements of vector in reverse order : 5 4 3 2 1 2. Using begin() and end() functions C++ // C++ STL program to print all elements // of a vector in reverse order #include <iostream> #include <vector> using namespace std; int main() { vector<int> vec; vec.push_back(1); vec.push_back(2); vec.push_back(3); vec.push_back(4); vec.push_back(5); // Printing original order cout << "Elements of vector in original order : "; for (int i : vec) { cout << i << " "; } cout << endl; // Printing all elements in reverse order cout << "Elements of vector in reverse order : "; for (auto it = vec.end() - 1; it >= vec.begin(); it--) cout << *it << " "; return 0; } OutputElements of vector in original order : 1 2 3 4 5 Elements of vector in reverse order : 5 4 3 2 1 3. Using rbegin() and rend() function C++ // C++ STL program to print all elements // of a vector in reverse order #include <iostream> #include <vector> using namespace std; int main() { vector<int> vec; vec.push_back(1); vec.push_back(2); vec.push_back(3); vec.push_back(4); vec.push_back(5); // Printing original order cout << "Elements of vector in original order : "; for (int i : vec) { cout << i << " "; } cout << endl; // Printing all elements in reverse order cout << "Elements of vector in reverse order : "; for (auto it = vec.rbegin(); it != vec.rend(); it++) { cout << *it << " "; } return 0; } OutputElements of vector in original order : 1 2 3 4 5 Elements of vector in reverse order : 5 4 3 2 1 Comment More infoAdvertise with us Next Article List of Vectors in C++ STL A amankr0211 Follow Improve Article Tags : Technical Scripter C++ Technical Scripter 2022 STL cpp-vector +1 More Practice Tags : CPPSTL Similar Reads Vector Operator = in C++ STL In C++, the vector operator = is used to assign the contents of one vector to another. It allows you to copy elements from one vector to another or initialize a vector with another vector's contents.Let’s take a look at a simple code example:C++#include <bits/stdc++.h> using namespace std; int 3 min read reverse() in C++ STL In C++, the reverse() is a built-in function used to reverse the order of elements in the given range of elements. This range can be any STL container or an array. In this article, we will learn about reverse() function in C++.Let’s take a look at an example:C++#include <bits/stdc++.h> using n 3 min read Vector end() in C++ STL In C++, the vector end() is a built-in method used to obtain an iterator pointing to the theoretical element after the last element of the vector. Even though this iterator does not point to a valid element, it serves as a marker for the end of the vector.Let’s take a look at an example that illustr 3 min read List of Vectors in C++ STL In C++, the list of vector refers to the list container in which each element is a vector. In this article, we will learn about the list of vectors in C++.Let’s take a look at an example:C++#include <bits/stdc++.h> using namespace std; int main() { list<vector<int>> l = {{1, 3}, {2 3 min read Vector crend() in C++ STL In C++, the vector crend() is a built-in method used to obtain a constant reverse iterator pointing to the theoretical element just before the first element of the vector. It is used to mark the reverse end of the vector.Let’s take a look at an example: C++#include <bits/stdc++.h> using namesp 2 min read Vector pop_back() in C++ STL In C++, the vector pop_back() is a built-in method used to remove the last element from a vector. It reduces the size of the vector by one, but the capacity remains unchanged.Let’s take a look at an example that illustrates the vector pop_back() method:C++#include <bits/stdc++.h> using namespa 3 min read Like