day 1

diff --git a/day-1.awk b/day-1.awk
new file mode 100644 (file)
index 0000000..1d241d2
--- /dev/null
+++ b/day-1.awk
@@ -0,0 +1,20 @@
+#!/usr/bin/awk -f
+
+BEGIN {
+       v = 50
+       c = 0
+}
+
+/^[LR]/ {
+       sub(/L/, "-")
+       sub(/R/, "+")
+       v += $1
+       while (v < 0) v += 100
+       while (v > 99) v -= 100
+       print v
+       if (v == 0) c++
+}
+
+END {
+       print "code", c
+}

diff --git a/day-1.py b/day-1.py
new file mode 100644 (file)
index 0000000..5694b6f
--- /dev/null
+++ b/day-1.py
@@ -0,0 +1,12 @@
+#!/bin/env python
+
+ans1 = ans2 = 0
+pos = new_pos = 50
+for line in open(0):
+    t,q = divmod(int(line[1:]), 100)
+    new_pos += q if line[0] == "R" else -q
+    ans2 += t + ((pos>0 and new_pos<=0) or new_pos>=100)
+    pos = new_pos = new_pos % 100
+    ans1 += (pos == 0)
+    print(pos)
+print(ans1, ans2)

diff --git a/day-1.txt b/day-1.txt
new file mode 100644 (file)
index 0000000..776d310
--- /dev/null
+++ b/day-1.txt
@@ -0,0 +1,4768 @@
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diff --git a/day-1_test.txt b/day-1_test.txt
new file mode 100644 (file)
index 0000000..53287c7
--- /dev/null
+++ b/day-1_test.txt
@@ -0,0 +1,10 @@
+L68
+L30
+R48
+L5
+R60
+L55
+L1
+L99
+R14
+L82

diff --git a/day-1b.awk b/day-1b.awk
new file mode 100644 (file)
index 0000000..ff5c5c1
--- /dev/null
+++ b/day-1b.awk
@@ -0,0 +1,26 @@
+#!/usr/bin/awk -f
+
+BEGIN {
+       v = 50
+       c = d = 0
+       print v
+}
+
+/^[LR]/ {
+       s = $1
+       n = /L/ ? -1 : 1
+       sub(/[LR]/, "")
+       for (i = 0; i < $1; i++) {
+               v += n
+               if (v < 0) v += 100
+               if (v > 99) v -= 100
+               if (v == 0) d++
+       }
+       if (v == 0) c++
+       print s, v, d
+}
+
+END {
+       print "code1", c
+       print "code2", d
+}