public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int size = sc . nextInt ( ) ;
  int temp = size ;
  int [ ] arr = new int [ 1001 ] ;
  while ( temp -- > 0 ) {
    arr [ sc . nextInt ( ) ] ++ ;
  }
  Arrays . sort ( arr ) ;
  if ( arr [ 1000 ] == 1 ) System . out . println ( "YES" ) ;
  else {
    for ( int i = 0 ;
    i < 1001 ;
    i ++ ) {
      if ( arr [ i ] > ( ( size + 1 ) / 2 ) ) {
        System . out . println ( "NO" ) ;
        return ;
      }
    }
    System . out . println ( "YES" ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int size = sc . nextInt ( ) ; int temp = size ; int [ ] arr = new int [ 1001 ] ; while ( temp -- > 0 ) { arr [ sc . nextInt ( ) ] ++ ; } Arrays . sort ( arr ) ; if ( arr [ 1000 ] == 1 ) System . out . println ( " YES " ) ; else { for ( int i = 0 ; i < 1001 ; i ++ ) { if ( arr [ i ] > ( ( size + 1 ) / 2 ) ) { System . out . println ( " NO " ) ; return ; } } System . out . println ( " YES " ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (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: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) (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 (decimal_integer_literal))))) (while_statement condition: (parenthesized_expression (binary_expression left: (update_expression (identifier)) right: (decimal_integer_literal))) body: (block (expression_statement (update_expression (array_access array: (identifier) index: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) alternative: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal))))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (return_statement))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))))