static int findMaxDiff ( int arr [ ] , int n ) {
  if ( n < 2 ) {
    System . out . println ( "Invalid " ) ;
    return 0 ;
  }
  int min_val = Integer . MAX_VALUE , max_val = Integer . MIN_VALUE ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( ( arr [ i ] - i ) > max_val ) max_val = arr [ i ] - i ;
    if ( ( arr [ i ] - i ) < min_val ) min_val = arr [ i ] - i ;
  }
  return ( max_val - min_val ) ;
}

static int findMaxDiff ( int arr [ ] , int n ) { if ( n < 2 ) { System . out . println ( " Invalid ▁ " ) ; return 0 ; } int min_val = Integer . MAX_VALUE , max_val = Integer . MIN_VALUE ; for ( int i = 0 ; i < n ; i ++ ) { if ( ( arr [ i ] - i ) > max_val ) max_val = arr [ i ] - i ; if ( ( arr [ i ] - i ) < min_val ) min_val = arr [ i ] - i ; } return ( max_val - min_val ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier) dimensions: (dimensions)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (return_statement (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (field_access object: (identifier) field: (identifier))) declarator: (variable_declarator name: (identifier) value: (field_access object: (identifier) field: (identifier)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))) right: (identifier))) consequence: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))))) (if_statement condition: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))) right: (identifier))) consequence: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))))))) (return_statement (parenthesized_expression (binary_expression left: (identifier) right: (identifier))))))