static void rearrange ( int arr [ ] , int n ) {
  int temp ;
  for ( int i = 0 ;
  i < n - 1 ;
  i ++ ) {
    if ( i % 2 == 0 && arr [ i ] > arr [ i + 1 ] ) {
      temp = arr [ i ] ;
      arr [ i ] = arr [ i + 1 ] ;
      arr [ i + 1 ] = temp ;
    }
    if ( i % 2 != 0 && arr [ i ] < arr [ i + 1 ] ) {
      temp = arr [ i ] ;
      arr [ i ] = arr [ i + 1 ] ;
      arr [ i + 1 ] = temp ;
    }
  }
}

static void rearrange ( int arr [ ] , int n ) { int temp ; for ( int i = 0 ; i < n - 1 ; i ++ ) { if ( i % 2 == 0 && arr [ i ] > arr [ i + 1 ] ) { temp = arr [ i ] ; arr [ i ] = arr [ i + 1 ] ; arr [ i + 1 ] = temp ; } if ( i % 2 != 0 && arr [ i ] < arr [ i + 1 ] ) { temp = arr [ i ] ; arr [ i ] = arr [ i + 1 ] ; arr [ i + 1 ] = temp ; } } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier) dimensions: (dimensions)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (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: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal)) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (array_access array: (identifier) index: (identifier)))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (identifier))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal)) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (array_access array: (identifier) index: (identifier)))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (identifier)))))))))