What am i doing wrong

#1
#2

Hello @abhigyanprakash29 please wait i am checking your code.

#3

Hello @abhigyanprakash29 what is the problem that you are facing?

#4

i dont know its saying wrong answers for all test cases on submitting…but gives correct ans. custom test case

#5

@abhigyanprakash29 i think your apprach is wrong because we hvae to print those elements whose frequency is zero only but your code’s logic is that if the element has frequncy greater then 1 then it should be printed. you are missing cases when a element can have a frequency of greater then 2 as well.

#6

Here is the correct code for your reference:


if you have any doubt you can ask here:
Happy Learning!!

#7

Given an array of integers, 1 ≤ arr[i] ≤ n (n = size of array), some elements appear twice and others appear once.

Find all the elements that appear twice in this array.
__ Answer must be sorted

no i guess it because the ans. should be sorted…

#8

Thanks for sharing the question but yes if it is given that at max elements can be in a frequency of 2 only then sorted output is the only wrong thing you were doing.

#9

yes thanks…btw in which are you currently studying

#10

Hello @abhigyanprakash29 if you feel that your doubt is cleared you can mark this as resolved.
Happy Learning!!

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#11

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