static void dfs ( int u , int p ) {
  for ( int v : g [ u ] ) {
    if ( v != p ) {
      dfs ( v , u ) ;
      for ( int i = 0 ;
      i < 22 ;
      i ++ ) a [ u ] [ i ] += a [ v ] [ i ] ;
    }
  }
  int pp = 0 ;
  for ( int i = 0 ;
  i < 22 ;
  i ++ ) {
    if ( ! ( ( a [ u ] [ i ] > 0 && x [ i ] - a [ u ] [ i ] > 0 ) || ( a [ u ] [ i ] == 0 && x [ i ] == 0 ) ) ) {
      pp = 1 ;
      break ;
    }
  }
  if ( pp == 0 ) ans ++ ;
}

static void dfs ( int u , int p ) { for ( int v : g [ u ] ) { if ( v != p ) { dfs ( v , u ) ; for ( int i = 0 ; i < 22 ; i ++ ) a [ u ] [ i ] += a [ v ] [ i ] ; } } int pp = 0 ; for ( int i = 0 ; i < 22 ; i ++ ) { if ( ! ( ( a [ u ] [ i ] > 0 && x [ i ] - a [ u ] [ i ] > 0 ) || ( a [ u ] [ i ] == 0 && x [ i ] == 0 ) ) ) { pp = 1 ; break ; } } if ( pp == 0 ) ans ++ ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (enhanced_for_statement type: (integral_type) name: (identifier) value: (array_access array: (identifier) index: (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (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: (decimal_integer_literal)) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier)) right: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier))))))))) (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: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (unary_expression operand: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (binary_expression left: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier)) right: (decimal_integer_literal)) right: (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier))) right: (decimal_integer_literal)))) right: (parenthesized_expression (binary_expression left: (binary_expression left: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier)) right: (decimal_integer_literal)) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)))))))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (break_statement))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (expression_statement (update_expression (identifier))))))