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-rwxr-xr-xchallenge-288/sgreen/python/ch-1.py31
1 files changed, 31 insertions, 0 deletions
diff --git a/challenge-288/sgreen/python/ch-1.py b/challenge-288/sgreen/python/ch-1.py
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+++ b/challenge-288/sgreen/python/ch-1.py
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+#!/usr/bin/env python3
+
+import sys
+
+
+def closest_palindrome(i: int) -> int:
+ # Negative integers always have a closest palindrome of 0
+ if i < 0:
+ return 0
+
+ offset = 1
+ while True:
+ check = i - offset
+ if str(check) == str(check)[::-1]:
+ return check
+
+ check = i + offset
+ if str(check) == str(check)[::-1]:
+ return check
+
+ offset += 1
+
+
+def main():
+ # Convert input into integers
+ result = closest_palindrome(int(sys.argv[1]))
+ print(result)
+
+
+if __name__ == '__main__':
+ main()