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-rw-r--r--python/055-lychrel_numbers.py19
1 files changed, 19 insertions, 0 deletions
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
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+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)