Fixed description 019
"""
Magic sequence in cpmpy.
-http://www.dcs.st-and.ac.uk/~ianm/CSPLib/prob/prob019/spec.html
-'''
+Problem 019 on CSPlib
+https://www.csplib.org/Problems/prob019/
+
A magic sequence of length n is a sequence of integers x0 . . xn-1 between
0 and n-1, such that for all i in 0 to n-1, the number i occurs exactly xi
times in the sequence. For instance, 6,2,1,0,0,0,1,0,0,0 is a magic sequence
since 0 occurs 6 times in it, 1 occurs twice, ...
-'''
-
-Cf autoref.py for a similar (but not identical) problem.
Model created by Hakan Kjellerstrand, hakank@hakank.com
See also my cpmpy page: http://www.hakank.org/cpmpy/
-Modified by Ignace Bleukx
+Modified by Ignace Bleukx, ignace.bleukx@kuleuven.be
"""
import sys
import numpy as np
