# size

**Description** : size() function is used to return the size of the satck or the number of elements in the stack.

**Example**:
```cpp
    // Empty stack 
    std::stack<int> mystack;
	mystack.push(4);
	mystack.push(5);
	mystack.push(9);
	mystack.push(1);
	mystack.push(3);

	// Stack from top to bottom becomes 3, 1, 9, 5, 4

	// Print the size of mystack (5)
	std::cout << mystack.size();
```
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