This question is very simple and i have created logic of program also but still it is showing one of the test case as run error .In this i am doing xor of all numbers
here is the link of program
Unique number question
Hey @abhibansal252 you have initilized the size of arr as 100 in the starting itself. But size value of n can be till 10^5 so this should be arr[n]. Rest your code is fine its working properly.
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