static int nonDecNums ( int n ) {
  int [ ] [ ] a = new int [ n + 1 ] [ 10 ] ;
  for ( int i = 0 ;
  i <= 9 ;
  i ++ ) a [ 0 ] [ i ] = 1 ;
  for ( int i = 1 ;
  i <= n ;
  i ++ ) a [ i ] [ 9 ] = 1 ;
  for ( int i = 1 ;
  i <= n ;
  i ++ ) for ( int j = 8 ;
  j >= 0 ;
  j -- ) a [ i ] [ j ] = a [ i - 1 ] [ j ] + a [ i ] [ j + 1 ] ;
  return a [ n ] [ 0 ] ;
}

static int nonDecNums ( int n ) { int [ ] [ ] a = new int [ n + 1 ] [ 10 ] ; for ( int i = 0 ; i <= 9 ; i ++ ) a [ 0 ] [ i ] = 1 ; for ( int i = 1 ; i <= n ; i ++ ) a [ i ] [ 9 ] = 1 ; for ( int i = 1 ; i <= n ; i ++ ) for ( int j = 8 ; j >= 0 ; j -- ) a [ i ] [ j ] = a [ i - 1 ] [ j ] + a [ i ] [ j + 1 ] ; return a [ n ] [ 0 ] ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (binary_expression left: (identifier) right: (decimal_integer_literal))) dimensions: (dimensions_expr (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: (expression_statement (assignment_expression left: (array_access array: (array_access array: (identifier) index: (decimal_integer_literal)) index: (identifier)) right: (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: (expression_statement (assignment_expression left: (array_access array: (array_access array: (identifier) index: (identifier)) index: (decimal_integer_literal)) right: (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: (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: (binary_expression left: (array_access array: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) index: (identifier)) right: (array_access array: (array_access array: (identifier) index: (identifier)) index: (binary_expression left: (identifier) right: (decimal_integer_literal)))))))) (return_statement (array_access array: (array_access array: (identifier) index: (identifier)) index: (decimal_integer_literal)))))