From 1879caa1dd80cb11dd62403663917ad4bf7cc68e Mon Sep 17 00:00:00 2001 From: Charles Date: Sun, 11 Aug 2019 22:41:34 +0200 Subject: rename all file with 3 zero padding --- python/055-lychrel_numbers.py | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 python/055-lychrel_numbers.py (limited to 'python/055-lychrel_numbers.py') diff --git a/python/055-lychrel_numbers.py b/python/055-lychrel_numbers.py new file mode 100644 index 0000000..efdf31d --- /dev/null +++ b/python/055-lychrel_numbers.py @@ -0,0 +1,19 @@ +from helper.palindrome import is_palindrome + + +def reverse_and_add(num): + return num + int(str(num)[::-1]) + +def is_lychrel_number(num): + for _ in range(50): + num = reverse_and_add(num) + if is_palindrome(num): + return False + return True + +counter = 0 +for i in range(10_000): + if is_lychrel_number(i): + counter += 1 + +print(counter) -- cgit