C++ Program to Find Largest Element in an Array

In this example, you will learn to find the largest element of an array. The program will ask to enter an array of integers and then will find the largest element from the given array.

Example: Find Largest Element in an Array

#include <iostream>
using namespace std;

int main()
{
    int i, n;
    float arr[100];

    cout << "Enter total number of elements: ";
    cin >> n;

    // Store number entered by the user
    for(i = 0; i < n; ++i)
    {
       cout << "Enter Number " << i + 1 << " : ";
       cin >> arr[i];
    }

    // Loop to store largest number to arr[0]
    for(i = 1;i < n; ++i)
    {
       // Change < to > if you want to find the smallest element
       if(arr[0] < arr[i])
           arr[0] = arr[i];
    }
    //print the largest element
    cout << "Largest element in an array: " << arr[0];

    return 0;
}

#include <iostream>

using namespace std;

int main()

{

int i, n;

float arr[100];

cout << "Enter total number of elements: ";

cin >> n;

// Store number entered by the user

for(i = 0; i < n; ++i)

{

cout << "Enter Number " << i + 1 << " : ";

cin >> arr[i];

}

// Loop to store largest number to arr[0]

for(i = 1;i < n; ++i)

{

// Change < to > if you want to find the smallest element

if(arr[0] < arr[i])

arr[0] = arr[i];

}

//print the largest element

cout << "Largest element in an array: " << arr[0];

return 0;

}

When you run the program, the output will be following:

Enter total number of elements: 5
Enter Number 1 : 13
Enter Number 2 : 15
Enter Number 3 : 35
Enter Number 4 : 87
Enter Number 5 : 64
Largest element in an array: 87

Enter total number of elements: 5

Enter Number 1 : 13

Enter Number 2 : 15

Enter Number 3 : 35

Enter Number 4 : 87

Enter Number 5 : 64

Largest element in an array: 87