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

• Last Updated : 09 Aug, 2022

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

## Python3

 lis = [123, 234, 236, 694, 809] print("largest even number",max(filter(lambda x: x%2==0,lis))) print("largest odd number",max(filter(lambda x: x%2!=0,lis)))

Output

largest even number 694
largest odd number 809

## Python3

 lis = [123, 234, 236, 694, 809] even = [x for i,x in enumerate(lis) if x % 2 == 0] odd = [x for i,x in enumerate(lis) if x % 2 == 1] print("large even num",max(even)) print("large odd num",max(odd))

Output

large even num 694
large odd num 809

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