public static int cost ( int [ ] array , int target ) {
  int ans = 0 ;
  for ( int n = 0 ;
  n < array . length ;
  n ++ ) ans += ( array [ n ] - target ) * ( array [ n ] - target ) ;
  return ans ;
}

public static int cost ( int [ ] array , int target ) { int ans = 0 ; for ( int n = 0 ; n < array . length ; n ++ ) ans += ( array [ n ] - target ) * ( array [ n ] - target ) ; return ans ; }
(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))) body: (block (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: (field_access object: (identifier) field: (identifier))) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))) right: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))))))) (return_statement (identifier))))