public static void main ( String [ ] args ) throws IOException {
  FastReader fr = new FastReader ( ) ;
  PrintWriter pr = new PrintWriter ( new OutputStreamWriter ( System . out ) ) ;
  int n = fr . nextInt ( ) ;
  PriorityQueue < Pair > pq = new PriorityQueue < > ( ( a , b ) -> b . y - a . y ) ;
  Map < Integer , Integer > map = new HashMap < > ( ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    int add = fr . nextInt ( ) ;
    map . putIfAbsent ( add , 0 ) ;
    map . put ( add , map . get ( add ) + 1 ) ;
  }
  for ( Map . Entry < Integer , Integer > a : map . entrySet ( ) ) {
    if ( a . getValue ( ) > ( n + 1 ) / 2 ) {
      pr . println ( "NO" ) ;
      pr . close ( ) ;
      return ;
    }
  }
  pr . println ( "YES" ) ;
  pr . close ( ) ;
}

public static void main ( String [ ] args ) throws IOException { FastReader fr = new FastReader ( ) ; PrintWriter pr = new PrintWriter ( new OutputStreamWriter ( System . out ) ) ; int n = fr . nextInt ( ) ; PriorityQueue < Pair > pq = new PriorityQueue < > ( ( a , b ) -> b . y - a . y ) ; Map < Integer , Integer > map = new HashMap < > ( ) ; for ( int i = 0 ; i < n ; i ++ ) { int add = fr . nextInt ( ) ; map . putIfAbsent ( add , 0 ) ; map . put ( add , map . get ( add ) + 1 ) ; } for ( Map . Entry < Integer , Integer > a : map . entrySet ( ) ) { if ( a . getValue ( ) > ( n + 1 ) / 2 ) { pr . println ( " NO " ) ; pr . close ( ) ; return ; } } pr . println ( " YES " ) ; pr . close ( ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) (throws (type_identifier)) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list)))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list (lambda_expression parameters: (inferred_parameters (identifier) (identifier)) body: (binary_expression left: (field_access object: (identifier) field: (identifier)) right: (field_access object: (identifier) field: (identifier)))))))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier) (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list)))) (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 (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (decimal_integer_literal)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (decimal_integer_literal))))))) (enhanced_for_statement type: (generic_type (scoped_type_identifier (type_identifier) (type_identifier)) (type_arguments (type_identifier) (type_identifier))) name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (string_literal)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) (return_statement))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (string_literal)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))