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authorNguyễn Gia Phong <vn.mcsinyx@gmail.com>2019-12-15 15:09:13 +0700
committerNguyễn Gia Phong <vn.mcsinyx@gmail.com>2019-12-15 15:09:13 +0700
commit9e28e4c7b67c54229df11d355047ac8a88ea1817 (patch)
tree0d9d40db69613c2c49564a3f1987a005d61f4db3 /tht/B/QG-2016/trigrid.py
parent67393f42f41ab92219deb549f711121c4dab845b (diff)
downloadcp-9e28e4c7b67c54229df11d355047ac8a88ea1817.tar.gz
Normalize pathname
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diff --git a/tht/B/QG-2016/trigrid.py b/tht/B/QG-2016/trigrid.py
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+#!/usr/bin/env python3
+
+TESTS = (4, 3, 5, 6, 111, 222, 3333, 4444, 55555, 666666, 7777777, 88888888,
+         999999999, 123456789123456789, 1000000000000000000)
+
+# Fomular from http://mathworld.wolfram.com/TriangleTiling.html
+n = lambda a: a * (a + 2) * (a * 2 + 1) // 8 % 2016
+
+with open('TRIGRID.TXT', 'w') as f:
+    for a in TESTS:
+        f.write("{}\n".format(n(a)))