list::rbegin() is an inbuilt function in C++ STL that returns a reverse iterator which points to the last element of the list.
Syntax:
list_name.rbegin()
Parameter: This function does not accept any parameters.
Return value: It returns a reverse iterator which points to the last element of the list.
Below program illustrates the above function:
CPP
#include <bits/stdc++.h>
using namespace std;
int main()
{
list< int > lis = { 10, 20, 30, 40, 50 };
cout << "The list in reverse order: " ;
for ( auto it = lis.rbegin(); it != lis.rend(); ++it)
cout << *it << " " ;
return 0;
}
|
OutputThe list in reverse order: 50 40 30 20 10
Time Complexity: O(n)
Auxiliary Space: O(1)
list::rend() is an inbuilt function in C++ STL that returns a reverse iterator which points to the position before the beginning of the list.
Syntax:
list_name.rend()
Parameter: The function does not accept any parameters.
Return value: It returns a reverse iterator which points to the position before the beginning of the list.
Below program illustrates the above function:
CPP
#include <bits/stdc++.h>
using namespace std;
int main()
{
list< int > lis = { 10, 20, 30, 40, 50 };
cout << "The list in reverse order: " ;
for ( auto it = lis.rbegin(); it != lis.rend(); ++it)
cout << *it << " " ;
return 0;
}
|
OutputThe list in reverse order: 50 40 30 20 10
Time Complexity: O(n)
Auxiliary Space: O(1)