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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/remainder.py
parent67393f42f41ab92219deb549f711121c4dab845b (diff)
downloadcp-9e28e4c7b67c54229df11d355047ac8a88ea1817.tar.gz
Normalize pathname
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-rwxr-xr-xTHT/B/QG-2016/remainder.py31
1 files changed, 0 insertions, 31 deletions
diff --git a/THT/B/QG-2016/remainder.py b/THT/B/QG-2016/remainder.py
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-#!/usr/bin/env python3
-TESTS = [
-    [12, 3, 8],
-    [2, 15, 17],
-    [456, 6, 1296],
-    [1234, 100, 9],
-    [11223344, 1000000, 142857],
-    [55667788, 10000000, 1000000007],
-    [1357, 24682468, 999999999],
-    [24680, 1357913579, 777777777],
-    [998, 1000000000000, 999],
-    [1234, 11111111111111, 30],
-    [1, 222222222222222, 123456789],
-    [2016, 666666666666666, 8888888888],
-    [11223344, 555666777888999, 1357924680],
-    [999999999999999967, 999999999999999877, 999999999999999989],
-    [123456789123456789, 123456789123456789, 987654321123456789]]
-
-# Gọi l là "chiều dài" của x, l = int(log10(x) + 1) hay l = len(str(x))
-# Đặt l ** 10 = a, dễ thấy y = x * (a**(n-1) + a**(n-2) + ... + a + 1)
-#                            = x * (a**n - 1) / (a - 1)
-# y chia m bằng k dư q hay x * (a**n - 1) / (a - 1) = k * m + q
-#                      <=> x * (a**n - 1) = k * (a*m - a) + q * (a - 1)
-#                      <=> q = x * (a**n - 1) % (a*m - a) / (a - 1)
-
-with open('REMAINDER.TXT', 'w') as f:
-    for x, n, m in TESTS:
-        a = 10 ** len(str(x))
-        m *= a - 1
-        p = pow(a, n, m)
-        print(x * (p - 1) % m // (a - 1), file=f)