How to Find the Maximum Element in a List in C++?

In C++, a list is a sequence container provided by the STL library that represents a doubly linked list and allows us to store data in non-contiguous memory locations efficiently. In this article, we will learn how to find the maximum element in a list in C++.

Example:

Input: 
myList = {30, 20, 10, 50, 40};

Output: 
The maximum element in the list is: 50

Finding the Maximum Element in a List in C++

To find the maximum element in a std::list, we can use the std::max_element() algorithm that returns an iterator pointing to the maximum value present in the list.

Syntax to Find the Maximum Element in a List

*max_element(begin, end);

Here, begin and end are iterators denoting the range of elements in the list.

C++ Program to Find the Maximum Element in a List

The below program demonstrates how we can use the std::max_element function to find the maximum element in a list in C++.

C++

// C++ program to demonstrates how we can use the
// std::max_element function to find the maximum element in
// a list
#include <algorithm>
#include <iostream>
#include <list>
using namespace std;

int main()
{
    // Initializing a list of integers
    list<int> myList = { 30, 20, 10, 50, 40 };

    // Finding the maximum element
    int maxi = *max_element(myList.begin(), myList.end());

    // Printing the maximum element of the list
    cout << "The maximum element in the list is : " << maxi
         << endl;

    return 0;
}

Output

The maximum element in the list is : 50

Time Complexity: O(N), where N denotes the number of elements in the list
Auxiliary Space: O(1)