Unique number problem

#1

i have tried that problem but getting unexpected output. here is my code . what is wrong in that ?

#2

intialize ans with first value of array and start taking xor from second value @Raghavsingla522
dont forget to mark resolved and hit like if cleared :smiley:

#3

tried that

but still not getting the correct output.
what to do now ?

#4

@Raghavsingla522 share updated code

#5
#6

@Raghavsingla522 its giving correct maybe you are giving input wrong give like this
5
1 1 2 2 3

#7

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