Is there an efficient and compact way to do it?
For example, given the array of any size:
Example 1:
my @arr1 = (15, 2, 7);
#return 0
Example 2:
my @arr2 = (1, 2, 3, 4, 20, 100);
#return 1
Example 3:
my @arr3 = (2, 3, 5, 7, 2);
#return 0
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