问想要从另一个2d数组中给出的索引反转子数组吗？

EN

import math
import os
import random
import re
import sys



#function
def reversubarray(arr,start,end):

def performOperations(arr, operations):
   answerarray = arr
   x = oprations.size();
   for i in range(x):
      answerarray = reverseSubarray(arr,operations[x][0],operations[x][1])
   return answerarray;
    
if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')

    arr_count = int(input().strip())

    arr = []

    for _ in range(arr_count):
        arr_item = int(input().strip())
        arr.append(arr_item)

    operations_rows = int(input().strip())
    operations_columns = int(input().strip())

    operations = []

    for _ in range(operations_rows):
        operations.append(list(map(int, input().rstrip().split())))

    result = performOperations(arr, operations)

    fptr.write('\n'.join(map(str, result)))
    fptr.write('\n')

    fptr.close()