Files
adventofcode/day-10/solution.py
Bert Peters b1956e0d5a Add solution for day 10.
For some reason, day 10 won't run that well with pypy, so I disabled
trying pypy in the runner script.
2015-12-10 11:59:04 +01:00

30 lines
467 B
Python

def lookandsay(line):
p = None
n = 0
result = []
for c in line:
if n > 0 and p is not c:
result.append(str(n))
result.append(p)
n = 0
p = c
n += 1
result.append(str(n))
result.append(p)
return ''.join(result)
line = "1321131112"
for x in range(40):
line = lookandsay(line)
print "40:", len(line)
for x in range(10):
line = lookandsay(line)
print "50:", len(line)