multimap::rbegin() is a built-in-function in C++ STL which returns an iterator pointing to the last element of the container.
Syntax:
multimap_name.rbegiin()
Parameters: The function does not take any parameter.
Return Value: The function returns a reverse iterator pointing to the last element of the container.
(Note: Reverse iterators iterate backwards i.e when they are increased they move towards the beginning of the container)
The following two programs illustrates the function.
Program 1
// CPP program to illustrate // multimap::rbegin() #include <iostream> #include <map> using namespace std; int main() { multimap< char , int > sample; // Insert pairs in the multimap sample.insert(make_pair( 'a' , 10)); sample.insert(make_pair( 'b' , 20)); sample.insert(make_pair( 'b' , 30)); sample.insert(make_pair( 'c' , 40)); sample.insert(make_pair( 'c' , 50)); // Get the last element by // multimap::rbegin() cout << sample.rbegin()->first << " = " << sample.rbegin()->second; } |
Output
c = 50
Program 2
// CPP program to illustrate // multimap::rbegin() #include <iostream> #include <map> using namespace std; int main() { multimap< char , int > sample; // Insert pairs in the multimap sample.insert(make_pair( 'a' , 10)); sample.insert(make_pair( 'b' , 20)); sample.insert(make_pair( 'b' , 30)); sample.insert(make_pair( 'c' , 40)); sample.insert(make_pair( 'c' , 50)); // Show content of the multimap for ( auto it = sample.rbegin(); it != sample.rend(); it++) cout << it->first << " = " << it->second << endl; } |
Output
c = 50 c = 40 b = 30 b = 20 a = 10
Attention reader! Don’t stop learning now. Get hold of all the important C++ Foundation and STL concepts with the C++ Foundation and STL courses at a student-friendly price and become industry ready.