The list::size() is a built-in function in C++ STL which is used to find the number of elements present in a list container. That is, it is used to find the size of the list container.
Syntax:
list_name.size();
Parameters: This function does not accept any parameter.
Return Value: This function returns the number of elements present in the list container list_name.
Below program illustrate the list::size() function in C++ STL:
// CPP program to illustrate the // list::size() function #include <bits/stdc++.h> using namespace std; int main() { // Creating a list list<int> demoList; // Add elements to the List demoList.push_back(10); demoList.push_back(20); demoList.push_back(30); demoList.push_back(40); // getting size of the list int size = demoList.size(); cout << "The list contains " << size << " elements"; return 0; } |
leave a comment
0 Comments