static int XorSum ( int arr [ ] , int n ) {
  int result = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    int k = 0 ;
    for ( int j = 1 ;
    j <= arr [ i ] ;
    j ++ ) k ^= arr [ i ] ;
    result += k ;
  }
  return result ;
}

static int XorSum ( int arr [ ] , int n ) { int result = 0 ; for ( int i = 0 ; i < n ; i ++ ) { int k = 0 ; for ( int j = 1 ; j <= arr [ i ] ; j ++ ) k ^= arr [ i ] ; result += k ; } return result ; }
(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 (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (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 (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (array_access array: (identifier) index: (identifier))) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (identifier) right: (array_access array: (identifier) index: (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (identifier))))) (return_statement (identifier))))