day 1 part 2 shorter

d01/d01_2.py

@@ -1,8 +1,3 @@
 import sys
-L = [ int(l[:-1]) for l in sys.stdin.readlines() ]
-Z = zip(L, L[1:], L[2:])
-M = [ a+b+c for (a,b,c) in Z]
-Y = zip(M, M[1:])
-P = [ [0,1][a<b] for (a,b) in Y ]
-#print([(l,m,p) for (l,m,p) in zip(L,M,P)])
-print(sum(P))
+L = [int(l[:-1]) for l in sys.stdin.readlines()]
+print(sum([0,1][a<b] for (a,b) in zip(L, L[3:])))