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

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  • Difficulty Level : Medium
  • Last Updated : 19 Mar, 2022

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 <bits/stdc++.h>
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[0]);
 
    // 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)

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