producing numbers out of a list - Printable Version +- Python Forum (https://python-forum.io) +-- Forum: Python Coding (https://python-forum.io/forum-7.html) +--- Forum: General Coding Help (https://python-forum.io/forum-8.html) +--- Thread: producing numbers out of a list (/thread-35496.html) Pages:
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producing numbers out of a list - bouraque7878 - Nov-09-2021 Hi, i want to produce 4 digit numbers out of the numbers in the list (like 1111, 1112, 1113, 1114,....) How can i do that? list_ = [1, 2, 3, 4] range = (1111, 44445) RE: producing numbers out of a list - Yoriz - Nov-09-2021 You need to explain more clearly what you are trying to do, and what have you tried to code this so far? RE: producing numbers out of a list - Axel_Erfurt - Nov-09-2021 for x in range(1, 5): print(f"111{x}")
RE: producing numbers out of a list - bouraque7878 - Nov-09-2021 (Nov-09-2021, 08:09 PM)Yoriz Wrote: You need to explain more clearly what you are trying to do, and what have you tried to code this so far? I want to add all possible 4 digit numbers that i can write by using [1, 2 ,3 ,4 ] This is what i wrote so far but it's not the right way to do that. list_1 = [1, 2, 3, 4] list_2 = list() for i in range(1111, 4445): i = str(i) for j in i: if i.count(j) == 1: list_2.append(i) else: break result = 0 for n in list_2: n = int(n) result += n print(result) RE: producing numbers out of a list - Yoriz - Nov-09-2021 Have a look at https://docs.python.org/3/library/itertools.html#itertools.combinations_with_replacement Wrote:itertools.combinations_with_replacement(iterable, r) RE: producing numbers out of a list - bowlofred - Nov-09-2021 Possibly want product. Although shoving the results together to make numbers isn't always trivial. from itertools import product digits = "1457" for number_str in product(digits, repeat=4): number = int("".join(number_str)) print(number)
RE: producing numbers out of a list - bouraque7878 - Nov-09-2021 (Nov-09-2021, 08:46 PM)bowlofred Wrote: Possibly want product. Although shoving the results together to make numbers isn't always trivial. This is exactly what i was looking for. Thank you. RE: producing numbers out of a list - bouraque7878 - Nov-12-2021 What about if i want to product numbers out of the same digits without repition ? I mean i don't want to product numbers like 1111, 1114, 1115 etc. I want to use a digit only once in a number. RE: producing numbers out of a list - bowlofred - Nov-12-2021 (Nov-12-2021, 04:14 PM)bouraque7878 Wrote: What about if i want to product numbers out of the same digits without repition ? Then you want "permutations". You need to make sure you only give it each digit one time or it will repeat it. from itertools import permutations digits = "1457" for number_str in permutations(digits, 4): number = int("".join(number_str)) print(number)
RE: producing numbers out of a list - bouraque7878 - Nov-12-2021 Cheers my friend :) |