The program is an illustration of arrays or lists
Arrays are variables used to hold multiple values in one identifier name
The program written in Python, where comments are used to explain each line is as follows
#This defines the function
def checksort(a):
#This calculates the length of array a
n = len(a)
#This initializes an empty array b
b = []
#This sets k to 1
k = 1
#The following loop populates array b
for i in range(n):
if(i%2==0):
b.append(a[int(i/2)])
else:
b.append(a[n - k])
k+=1
#This initializes a boolean variable to False
status = False
#This determines if the array b is sorted or not
if(sorted(b) == b):
status = True
#This returns true or false, depending whether array b is sorted or not
return status
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