OOPS : valueerror: invalid literal for int() with base 10

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Objective-C

OOP

Python3.6

Given as input a list of integers nums and an integer k, return the maximum value of each sub-list of length k
Example: nums = [4, 8, 2, 4, 10, 12]
k = 2
Output = [8, 8, 4, 10, 12]
Your task is to create a class named SlidingWindow and implement the functions get_sublist and get_max.

**Function Description:**

The get_sublist function has the following parameter(s):

int nums[n]: array of n positive integers int k: the sliding window length

returns:

int list: the maximum values of each sub-list/sliding window

The get_max function has the following parameter(s):

int nums[n]: array of n positive integers int start: the starting index of the sub-list (included) int end: the end index of the sub-list (included)

returns:

int: the maximum value from the sub-list starting from start index till the end index

Note: The input has to be taken outside the SlidingWindow class and then a call is given to the get_sublist function present inside the class to obtain the desired result

**Input Format**

The first line contains two space-separated integers n and k, the number of elements in the array and length of each sublist/subarray. The second line contains n space-separated integers which specifies the elements of the array

What I have tried:

class SlidingWindow :
    
    def get_max(self,arr,start,end) :
        list1 = []
        for i in range(start,end + 1):
            list1.append(arr[i])
        return max(list1)
        
    def get_sublist(self,arr,k) :
        ans = []
        n = len(arr)
        for i in range(n-k+1):
            a = self.get_max(arr,i,i+k-1)
            ans.append(a)
        return ans
    
if __name__ == '__main__':
    n , k = map(int, input().split())
    #arr = [4, 8, 2, 4, 10, 12]
    #k=2
    arr = []
    for i in range(n):
        x = int(input())
        arr.append(x)
    obj = SlidingWindow()
    res = obj.get_sublist(arr,k)
    for i in res:
        print(i , end=" ")

But getting this error :

ValueError: invalid literal for int() with base 10