It gives wrong answer on submitting but gives correct on test cases given?

#1

what is the most possible test case for which it could fail? it works for the given test cases https://ide.codingblocks.com/s/463821

#2

hello @shibangi

u cannot include same element twice.
for example->
1
2
20 30 40 60
80

u cant include 40 twice

#3

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