Here is the function that you were looking for. The Iterable and the corresponding import is just to provide type hints and can be removed if you like. from collections import Counter from typing import Iterable d = [1,1,2,3,4,5,5,5,6] def retainSingles(it: Iterable): counts = Counter(it) return [c for c in counts if counts[c] == 1] … Read more
yshavit: What you’re trying to do isn’t easy/natural to do in Java. You’re basically trying to write an expression which creates and immediately invokes a method, basically as a way of grouping a bunch of statements together (and also providing an enclosed scope) to get a single value. It’s not an unreasonable thing, and in … Read more
Use ANSI SQL’s || instead to concat: SELECT FIRST_NAME || ‘,’ || LAST_NAME as full_name FROM EMPLOYEES; (CONCAT() function takes two arguments only.) 2 solved CONCAT in sql developer [duplicate]
I think you are misunderstanding the “:” notation for the lists. upper[:3] gives the first 3 characters from upper whereas upper[3:] gives you the whole list but the 3 first characters. In the end you end up with : upperNew = upper[:3] + upper[3:] = ‘ABC’ + ‘DEFGHIJKLMNOPQRSTUVWXYZ’ When you sum them into upperNew, you … Read more
First, char *stuff_to_append_to[] is an array of pointers of undetermined length, that is not a valid parameter, as the last dimension of an array must be specified when passed to a function, otherwise, pass a pointer to type. Next, char **stuff_to_append is a pointer to pointer to char and is completely valid, but given your … Read more