static int LongestSubarray ( int [ ] arr , int n , int k ) {
  int [ ] arr2 = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) arr2 [ i ] = arr [ i ] % k ;
  int current_length , max_length = 0 ;
  int j ;
  for ( int i = 0 ;
  i < n ;
  ) {
    current_length = 1 ;
    for ( j = i + 1 ;
    j < n ;
    j ++ ) {
      if ( arr2 [ j ] == arr2 [ i ] ) current_length ++ ;
      else break ;
    }
    max_length = Math . max ( max_length , current_length ) ;
    i = j ;
  }
  return max_length ;
}

static int LongestSubarray ( int [ ] arr , int n , int k ) { int [ ] arr2 = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) arr2 [ i ] = arr [ i ] % k ; int current_length , max_length = 0 ; int j ; for ( int i = 0 ; i < n ; ) { current_length = 1 ; for ( j = i + 1 ; j < n ; j ++ ) { if ( arr2 [ j ] == arr2 [ i ] ) current_length ++ ; else break ; } max_length = Math . max ( max_length , current_length ) ; i = j ; } return max_length ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (integral_type) dimensions: (dimensions)) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier)) (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 (identifier))))) (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: (identifier) index: (identifier)) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier))) (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)) body: (block (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (for_statement init: (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (identifier)))) consequence: (expression_statement (update_expression (identifier))) alternative: (break_statement)))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (identifier))))) (return_statement (identifier))))