1 files changed, 30 insertions, 0 deletions
diff --git a/others/153x/060.py b/others/153x/060.py
new file mode 100755
index 0000000..bfbf0cc
--- /dev/null
+++ b/others/153x/060.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+from fractions import Fraction
+
+
+def dec_div(n):
+    return n, l2, l5
+
+
+def decimal(fraction):
+    a, b, l2, l5 = fraction.numerator, fraction.denominator, 0, 0
+    if b == 1: return '{}\n'.format(a)
+    while not b % 2:
+        b //= 2
+        l2 += 1
+    while not b % 5:
+        b //= 5
+        l5 += 1
+    b2, b5, finited = 2 ** l2, 5 ** l5, 10 ** max(l2, l5)
+    if b == 1: return '{}\n'.format(a / (b2*b5))
+    finiten = a * finited // b2 // b5 // b
+    finite = str(finiten / finited).rstrip('0')
+    f = Fraction(a, b * b2 * b5) - Fraction(finiten, finited)
+    a, b, d9 = f.numerator, f.denominator // finited, 9
+    while d9 % b: d9 = d9*10 + 9
+    return '{}({})\n'.format(finite, a * d9 // b)
+
+
+with open('DECIMAL.INP') as fi, open('DECIMAL.OUT', 'w') as fo:
+    for line in fi:
+        fo.write(decimal(Fraction(*map(int, line.split()))))