static int longestAlternatingSubarray ( int a [ ] , int n ) {
  int longest = 1 ;
  int cnt = 1 ;
  for ( int i = 1 ;
  i < n ;
  i ++ ) {
    if ( a [ i ] * a [ i - 1 ] < 0 ) {
      cnt ++ ;
      longest = Math . max ( longest , cnt ) ;
    }
    else cnt = 1 ;
  }
  return longest ;
}

static int longestAlternatingSubarray ( int a [ ] , int n ) { int longest = 1 ; int cnt = 1 ; for ( int i = 1 ; i < n ; i ++ ) { if ( a [ i ] * a [ i - 1 ] < 0 ) { cnt ++ ; longest = Math . max ( longest , cnt ) ; } else cnt = 1 ; } return longest ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier) dimensions: (dimensions)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (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: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (decimal_integer_literal))) consequence: (block (expression_statement (update_expression (identifier))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier)))))) alternative: (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal)))))) (return_statement (identifier))))