static int nCr ( int n , int r ) {
  return l [ n ] [ r ] ;
}

static int nCr ( int n , int r ) { return l [ n ] [ r ] ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (return_statement (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier)))))