# How to find the maximum element of an Array using STL in C++?

Given an array arr[], find the maximum element of this array using STL in C++.
Example:

```Input: {1, 45, 54, 71, 76, 12}
Output: 76

Input: {1, 7, 5, 4, 6, 12}
Output: 12```

Approach: Max or Maximum element can be found with the help of *max_element() function provided in STL.
Syntax:

`*max_element (first_index, last_index);`

## CPP

 `// C++ program to find the max` `// of Array using sort() in STL`   `#include ` `using` `namespace` `std;`   `int` `main()` `{` `    ``// Get the array` `    ``int` `arr[] = { 1, 45, 54, 71, 76, 12 };`   `    ``// Compute the sizes` `    ``int` `n = ``sizeof``(arr) / ``sizeof``(arr);`   `    ``// Print the array` `    ``cout << ``"Array: "``;` `    ``for` `(``int` `i = 0; i < n; i++)` `        ``cout << arr[i] << ``" "``;`   `    ``// Find the maximum element` `    ``cout << ``"\nMax Element = "` `<< *max_element(arr, arr + n);` `    ``return` `0;` `}`

Output

```Array: 1 45 54 71 76 12
Max Element = 76```

Time Complexity:- O(n)

Auxiliary Space: O(1)

As constant extra space is used.

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