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C++ > Arrays and Matrices Code Examples

C++ Program to Find Largest Element of an Array

C++ Program to Find Largest Element of an Array

This program takes n number of element from user (where, n is specified by user) and stores data in an array. Then, this program displays the largest element of that array using loops.

This program takes n number of elements from user and stores it in array arr[].

To find the largest element, the first two elements of array are checked and largest of these two element is placed in arr[0].

Then, the first and third elements are checked and largest of these two element is placed in arr[0].

This process continues until and first and last elements are checked.

After this process, the largest element of an array will be in arr[0] position.

#include <iostream>
using namespace std;

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

    cout << "Enter total number of elements(1 to 100): ";
    cin >> n;
    cout << endl;

    // 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];
    }
    cout << "Largest element = " << arr[0];

    return 0;
}

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