static void minCost ( int [ ] arr , int n ) {
  int cost = Integer . MAX_VALUE ;
  int element = 0 ;
  int XOR = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) XOR ^= arr [ i ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( cost > Math . abs ( ( XOR ^ arr [ i ] ) - arr [ i ] ) ) {
      cost = Math . abs ( ( XOR ^ arr [ i ] ) - arr [ i ] ) ;
      element = arr [ i ] ;
    }
  }
  System . out . println ( "Element = " + element ) ;
  System . out . println ( "Operation required = " + Math . abs ( cost ) ) ;
}

static void minCost ( int [ ] arr , int n ) { int cost = Integer . MAX_VALUE ; int element = 0 ; int XOR = 0 ; for ( int i = 0 ; i < n ; i ++ ) XOR ^= arr [ i ] ; for ( int i = 0 ; i < n ; i ++ ) { if ( cost > Math . abs ( ( XOR ^ arr [ i ] ) - arr [ i ] ) ) { cost = Math . abs ( ( XOR ^ arr [ i ] ) - arr [ i ] ) ; element = arr [ i ] ; } } System . out . println ( " Element ▁ = ▁ " + element ) ; System . out . println ( " Operation ▁ required ▁ = ▁ " + Math . abs ( cost ) ) ; }
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