Days 1 and 2

.gitignore

@@ -0,0 +1 @@
+input

1/a.py

@@ -0,0 +1,13 @@
+with open("input", "r") as f:
+    lines = f.read().splitlines()
+
+p = 50
+
+for line in lines:
+    d = line[0]
+    n = int(line[1:])
+    if d == "L":
+        n *= -1
+    p += n
+    p %= 100
+    print(p)

1/b.py

@@ -0,0 +1,16 @@
+with open("input", "r") as f:
+    lines = f.read().splitlines()
+
+p = 50
+
+for line in lines:
+    d = line[0]
+    n = int(line[1:])
+
+    for i in range(n):
+        if d == "R":
+            p += 1
+        else:
+            p -= 1
+        p %= 100
+        print(p)

2/a.py

@@ -0,0 +1,16 @@
+import re
+
+with open("input", "r") as f:
+    line = f.read()
+
+ranges = line.split(",")
+
+s = 0
+
+for _range in ranges:
+    start, end = list(map(int, _range.split("-")))
+    for i in range(start, end+1):
+        if re.match(r"^(.+)\1$", str(i)):
+            s += i
+
+print(s)

2/b.py

@@ -0,0 +1,16 @@
+import re
+
+with open("input", "r") as f:
+    line = f.read()
+
+ranges = line.split(",")
+
+s = 0
+
+for _range in ranges:
+    start, end = list(map(int, _range.split("-")))
+    for i in range(start, end+1):
+        if re.match(r"^(.+)\1+$", str(i)):
+            s += i
+
+print(s)