text: Driver program to test above function
code: int main ( ) { int arr [ ] = { 12 , 1 , 12 , 3 , 12 , 1 , 1 , 2 , 3 , 2 , 2 , 3 , 7 } ; int n = sizeof ( arr ) / sizeof ( arr [ 0 ] ) ; printf ( " The ▁ element ▁ with ▁ single ▁ occurrence ▁ is ▁ % d ▁ " , getSingle ( arr , n ) ) ; return 0 ; }