public static long comb ( long a , long b , long mod , long [ ] pw , long [ ] ipw ) {
  return ( ( ( pw [ ( int ) a ] * ipw [ ( int ) a - ( int ) b ] ) % mod ) * ipw [ ( int ) b ] ) % mod ;
}

public static long comb ( long a , long b , long mod , long [ ] pw , long [ ] ipw ) { return ( ( ( pw [ ( int ) a ] * ipw [ ( int ) a - ( int ) b ] ) % mod ) * ipw [ ( int ) b ] ) % mod ; }
(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)) (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (array_type element: (integral_type) dimensions: (dimensions)) name: (identifier)) (formal_parameter type: (array_type element: (integral_type) dimensions: (dimensions)) name: (identifier))) body: (block (return_statement (binary_expression left: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (cast_expression type: (integral_type) value: (identifier))) right: (array_access array: (identifier) index: (binary_expression left: (cast_expression type: (integral_type) value: (identifier)) right: (cast_expression type: (integral_type) value: (identifier)))))) right: (identifier))) right: (array_access array: (identifier) index: (cast_expression type: (integral_type) value: (identifier))))) right: (identifier)))))