static void printCompositions ( int arr [ ] , int n , int i ) {
  int MAX_POINT = 3 ;
  if ( n == 0 ) {
    printArray ( arr , i ) ;
  }
  else if ( n > 0 ) {
    for ( int k = 1 ;
    k <= MAX_POINT ;
    k ++ ) {
      arr [ i ] = k ;
      printCompositions ( arr , n - k , i + 1 ) ;
    }
  }
}

static void printCompositions ( int arr [ ] , int n , int i ) { int MAX_POINT = 3 ; if ( n == 0 ) { printArray ( arr , i ) ; } else if ( n > 0 ) { for ( int k = 1 ; k <= MAX_POINT ; k ++ ) { arr [ i ] = k ; printCompositions ( arr , n - k , i + 1 ) ; } } }
(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)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (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 (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))) (expression_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (identifier) right: (identifier)) (binary_expression left: (identifier) right: (decimal_integer_literal))))))))))))