# Python Program to find the largest element in array

April 11, 2022, Learn eTutorial
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In this simple python program, we find the largest element in an array. It's an Array-based python program.

To understand this example, you should have knowledge of the following Python programming topics:

## How to find the largest elements in an array?

Based on the array concept in python programming, we need to find the largest elements in an array. An array is a collection of elements of the same data type accessed by a common index. In this solved python program, to find the largest element.

We take the first element in the array in a variable, then with the help of a `for loop`we traverse till the end of the array and compare each element with the variable containing the first element. If we found a greater element than the first element using an if condition in python, swap the variable to that element. Finally, after all the iteration of `for loop`, we have the largest value in our variable.

For example, consider an array with 5 elements A = [ 2, 8, 4, 9, 5]; first, we take the 2 in a variable named 'x' the in for loop we compare x with 8. Change the value of x = 8 and again traverse through the loop using python language basics. Now we compare x with 4, and there is no change for x as 3 is less than 8. and so on. When the for loop in python gets to the end, x will be the largest element, which is 9.

### ALGORITHM

STEP 1: Initialize an array called lar and add some values predefined into the array.

STEP 2: Assign the first element of the array to a variable called 'L'.

STEP 3: Use the `for loop` from zero to the length of an array using the `len()` and `range()` method in the python programming language.

STEP 4: Compare each element in the array with a variable using the `if` condition.

STEP 5: If the element is greater than the variable, then change it as the element.

STEP 6: Print, the largest element in the array, is that variable using print in python language. We use the `str()` method in python to convert the integer to string for printing.

## Python Source Code

```                                          ```
lar = [1, 3, 9, 4, 5];

L = lar[0];      # assigning the first element to a variable

for i in range(0, len(lar)):    # looping to traverse till the end of array

if(lar[i] > L):    # use a if condition to compare and assign greater value to variable L
L = lar[i];

print("Largest element in array is : " + str(L));   ```
```

## OUTPUT

`Largest element in array is : 9`

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