How to sort integer vector in descending order in C++?

In this C++ tutorial, you shall learn how to sort an integer vector in descending order, with example programs.

Sort integer Vector in descending order in C++

To sort elements in an integer vector in descending order in C++, use std::sort() function of algorithm library, and std::reverse() function.

std::sort() function of algorithm library sorts the vector in ascending order, then reverse this vector using std::reverse() function.

The statement to sort the elements of integer vector v in descending order is

sort(v.begin(), v.end());
reverse(v.begin(), v.end());

C++ Program

In the following program, we take an integer vector in v1 and sort this vector in descending order.

main.cpp

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
   //int vector
   vector<int> v1 { 4, 17, 1, 8, 2, 15, 13 };

   //sort vector v1 in descending order
   sort(v1.begin(), v1.end());
   reverse(v1.begin(), v1.end());
   
   //print result vector
   for ( auto& n : v1 ) {
      cout << n << "  ";
   }
}

Output

17  15  13  8  4  2  1

Conclusion

In this C++ Tutorial, we learned how to sort given integer vector in descending order.