# Python Program to Print Largest Even and Largest Odd Number in a List

• Last Updated : 10 Mar, 2021

Given a list. The task is to print the largest even and largest odd number in a list.

Examples:

```Input: 1 3 5 8 6 10
Output:
Largest even number is  10
Largest odd number is  5

Input: 123 234 236 694 809
Output:
Largest odd number is  809
Largest even number is  694```

The first approach uses two methods , one for computing largest even number and the other for computing the largest odd number in a list of numbers, input by the user. Each of the methods prints the largest even and odd number respectively. We maintain one counter for each method, for current largest even or odd and check if the number is divisible by two or not . Accordingly, we print the largest values.

## Python3

 `class` `LargestOddAndEven:``  ` `    ``# find largest even number of``    ``# the list``    ``def` `largestEven(``self``, ``list``):``        ` `        ``# counter for current largest``        ``# even number``        ``curr ``=` `-``1``        ` `        ``for` `num ``in` `list``:``          ` `            ``# converting number to integer``            ``# explicitly``            ``num ``=` `int``(num)``            ` `            ``# even number is divisible by 2 and``            ``# if larger than current largest``            ``if``(num ``%` `2` `=``=` `0` `and` `num > curr):``              ` `                ``# replace current largest even``                ``curr ``=` `num` `        ``print``(``"Largest even number is "``, curr)` `    ``# find largest odd number of the list``    ``def` `largestOdd(``self``, ``list``):``      ` `        ``# current largest odd number``        ``currO ``=` `-``1``        ``for` `num ``in` `list``:``          ` `            ``# converting number to integer``            ``# explicitly``            ``num ``=` `int``(num)``            ` `            ``# even number is divisible by 2 and``            ``# if larger than current largest``            ``if``(num ``%` `2` `=``=` `1` `and` `num > currO):``                ` `                ``# replace current largest even``                ``currO ``=` `num` `        ``print``(``"Largest odd number is "``, currO)` `list_num ``=` `[``1``, ``3``, ``5``, ``8``, ``6``, ``10``]` `# creating an object of class``obj ``=` `LargestOddAndEven()` `# calling method for largest even number``obj.largestEven(list_num)` `# calling method for largest odd number``obj.largestOdd(list_num)`

Output:

```Largest even number is  10
Largest odd number is  5```

The second approach, uses an optimised version of first approach, where in we compute both the largest values in one method itself. We still maintain two counters, but the for loop that iterates over the list runs only once.

## Python3

 `class` `LargestOddAndEven:``  ` `    ``# find largest even number of the list``    ``def` `largestEvenandOdd(``self``, ``list``):``        ` `        ``# counter for current largest even``        ``# number``        ``curr ``=` `-``1``        ` `        ``# counter for current largest odd``        ``# number``        ``currO ``=` `-``1``        ``for` `num ``in` `list``:``            ` `            ``# converting number to integer``            ``# explicitly``            ``num ``=` `int``(num)``            ` `            ``# even number is divisible by 2 and``            ``# if larger than current largest``            ``if``(num ``%` `2` `=``=` `0` `and` `num > curr):``                ` `                ``# replace current largest even``                ``curr ``=` `num``            ` `            ``elif``(num ``%` `2` `=``=` `1` `and` `num > currO):``                ` `                ``# replace current largest even``                ``currO ``=` `num` `        ``print``(``"Largest odd number is "``, currO)``        ``print``(``"Largest even number is "``, curr)`  `# input a list of numbers``list_num ``=` `[``123``, ``234``, ``236``, ``694``, ``809``]` `# creating an object of class``obj ``=` `LargestOddAndEven()` `# calling method for largest even and odd number``obj.largestEvenandOdd(list_num)`

Output:

```Largest odd number is  809
Largest even number is  694```

#### Method 3: Using list Comprehension and max function in python:

Below is the implementation of above approach:

## Python3

 `# Python program for the above approach` `def` `printmax(lis):``  ` `    ``# Using list comprehension storing``    ``# even and odd numbers as separate lists``    ``even ``=` `[x ``for` `x ``in` `lis ``if` `x ``%` `2` `=``=` `0``]``    ``odd ``=` `[x ``for` `x ``in` `lis ``if` `x ``%` `2` `=``=` `1``]` `    ``# printing max numbers in corresponding lists``    ``print``(``"Largest odd number is "``, ``max``(odd))``    ``print``(``"Largest even number is "``, ``max``(even))`  `# Input a list of numbers``lis ``=` `[``123``, ``234``, ``236``, ``694``, ``809``]` `printmax(lis)` `# This code is contributed by vikkycirus`

Output:

```Largest odd number is  809

Largest even number is  694```

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