Unique number || problem

hi! i was practicing writing the code for unique number || by myself and the desired output isn’t given by it. i also verified it with the code taught by mentor and still didn’t find the error. here is the code https://ide.codingblocks.com/s/397670
please help

Hey @vanya.garg
Just increase the array size https://ide.codingblocks.com/s/397673