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stackoverflow.com › questions › 8877448 › how-do-i-reverse-a-c-vector

There's a function std::reverse in the algorithm header for this purpose.

#include <vector>
#include <algorithm>

int main() {
  std::vector<int> a;
  std::reverse(a.begin(), a.end());
  return 0;
}

Answer from Ivaylo Strandjev on Stack Overflow

Stack Overflow

stackoverflow.com › questions › 8877448 › how-do-i-reverse-a-c-vector

How do I reverse a C++ vector? - Stack Overflow

Top answer

1 of 6

412

There's a function std::reverse in the algorithm header for this purpose.

#include <vector>
#include <algorithm>

int main() {
  std::vector<int> a;
  std::reverse(a.begin(), a.end());
  return 0;
}

2 of 6

All containers offer a reversed view of their content with rbegin() and rend(). These two functions return so-calles reverse iterators, which can be used like normal ones, but it will look like the container is actually reversed.

#include <vector>
#include <iostream>

template<class InIt>
void print_range(InIt first, InIt last, char const* delim = "\n"){
  --last;
  for(; first != last; ++first){
    std::cout << *first << delim;
  }
  std::cout << *first;
}

int main(){
  int a[] = { 1, 2, 3, 4, 5 };
  std::vector<int> v(a, a+5);
  print_range(v.begin(), v.end(), "->");
  std::cout << "\n=============\n";
  print_range(v.rbegin(), v.rend(), "<-");
}

Live example on Ideone. Output:

1->2->3->4->5
=============
5<-4<-3<-2<-1

GeeksforGeeks

geeksforgeeks.org › c++ › stdreverse-in-c

reverse() in C++ STL - GeeksforGeeks

04:10

#include <bits/stdc++.h> using namespace std; int main() { vector<int> v = {1, 3, 6, 2, 9}; int n = v.size(); int d = 2; // Left rotate the vector by d place reverse(v.begin(), v.begin() + d); reverse(v.begin() + d, v.end()); reverse(v.begin(), v.end()); for (auto i : v) cout << i << " "; return 0; }

Published January 20, 2026

Discussions

c++ please 20 LAB: Reverse vector plete Reverse() function that returns a new character vector containing all contents in the input argument reversed. f the input vector is: a', 'b', 'c'] n the returned vector will be: 'c', 'b', 'a'] 70.1771362.qx3zqy7 LAB ACTIVITY 4.20.1: LAB: Reverse vector 1 #include 2 #include 3 using namespace std; 4 5 // This method

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