vector crbegin() in C++

crbegin(): It is an in-build function in STL of C++. It basically returns the read-only (constant) reverse iterator that points to the last element in the vector. 

Note: Iteration is done in the reverse element order.

Syntax:

vector<data_type>::const_reverse_iterator it = vecName.crbegin()

File: stl_vector.h

For Example:

vec = {1,2,3,4,5}

vec.crbegin() = > It points to the last element (i.e 5)

Approach

C++

#include <bits/stdc++.h>
using namespace std;

int main()
{
    vector<int> vec = {1, 2, 3, 4, 5};

    vector<int>::const_reverse_iterator it = vec.crbegin();
    cout << *it << "\n";

    return 0;
}