commit 2c6dc6e8be17faa9c7b76af8e719f3f9aea66bac
Author: Valentin Ochs <a@0au.de>
Date:   Thu Dec 3 22:34:39 2020 +0100

    Initial commit

diff --git a/01-1-1.py b/01-1-1.py
new file mode 100644
index 0000000..fb68bb2
--- /dev/null
+++ b/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])
diff --git a/01-2-1.py b/01-2-1.py
new file mode 100644
index 0000000..ac44daa
--- /dev/null
+++ b/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])
diff --git a/02-1-1.py b/02-1-1.py
new file mode 100644
index 0000000..8e696ac
--- /dev/null
+++ b/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])))
diff --git a/02-2-1.py b/02-2-1.py
new file mode 100644
index 0000000..a3ce182
--- /dev/null
+++ b/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()))