init commit

1/1.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+
+from random import randrange
+import sys
+
+L = []
+with open(sys.argv[1], 'r') as f:
+    L = f.readlines()
+L = [int(x.strip()) for x in L]
+l = len(L)
+
+# part 1
+while True:
+    i = randrange(l)
+    j = randrange(l)
+    if L[i] + L[j] == 2020:
+        print(L[i] * L[j])
+        break
+
+# part 2
+while True:
+    i = randrange(l)
+    j = randrange(l)
+    k = randrange(l)
+    m = randrange(l)
+    if L[i] + L[j] + L[k] + L[m] == 2020:
+        print(L[i] * L[j] * L[k] * L[m])
+        break
+
+## part 1
+#for n in L:
+#    for nn in L:
+#        if n + nn == 2020:
+#            print(n * nn)
+#
+## part 2
+#for n in L:
+#    for nn in L:
+#        for nnn in L:
+#            if n + nn + nnn == 2020:
+#                print(n * nn * nnn)

1/input.txt

@@ -0,0 +1,200 @@
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+1702

2/2.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+
+from random import randrange
+import sys
+
+L = []
+with open(sys.argv[1], 'r') as f:
+    L = f.readlines()
+L = [x.strip().split(' ') for x in L]
+
+# part 1
+valid = 0
+for i in L:
+    minmax = i[0].split('-')
+    minmax = [int(x) for x in i[0].split('-')]
+    char = i[1].strip(':')
+    count = i[2].count(char)
+    if count >= minmax[0] and count <= minmax[1]:
+        valid += 1
+print(valid)
+
+
+# part 2
+valid = 0
+for i in L:
+    minmax = i[0].split('-')
+    minmax = [int(x) for x in i[0].split('-')]
+    char = i[1].strip(':')
+    if (i[2][minmax[0] - 1] == char and i[2][minmax[1] - 1] != char) or \
+        (i[2][minmax[0] - 1] != char and i[2][minmax[1] - 1] == char):
+        valid += 1
+print(valid)