vector end() in C++

end(): It returns a read/write iterator that points to one past the last element in the vector.

Note: Iteration is done in ordinary element order.

File: stl_vector.h

Parameter: No parameter is required for this function.

Syntax:

vecName.end()

For Example:

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

vec.end() = > It points beyond 5.

So, to print last element we can subtract 1 from the iterator and then print.

Approach

C++

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

int main()
{

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

    vector<int>::iterator it = vec.end();

    cout << *(it - 1) << "\n";

    return 0;
}