Initial commit

01-1-1.py

@@ -0,0 +1,2 @@
+l=set(map(int,open("/dev/stdin").readlines()))
+print([a*(2020-a) for a in l if 2020-a in l])

01-2-1.py

@@ -0,0 +1,2 @@
+l=list(map(int, open("/dev/stdin").readlines()))
+print([a*b*c for a in l for b in l for c in l if a+b+c==2020])

02-1-1.py

@@ -0,0 +1 @@
+print(sum(1 for l in map(lambda x:x.split(),open("/dev/stdin").readlines()) if int(l[0].split('-')[0])<=l[2].count(l[1][0])<=int(l[0].split('-')[1])))

02-2-1.py

@@ -0,0 +1,4 @@
+def chk(k):
+ a,b,c=*map(int,k[0].split('-')),k[1][0]
+ return (k[2][a-1]==c)^(k[2][b-1]==c)
+print(sum(chk(x.split()) for x in open("/dev/stdin").readlines()))