Day 05

Author: petertseng

05_cpu_jump.rb

@@ -0,0 +1,16 @@
+def run(input, lim)
+  input = input.dup
+  n = 0
+  pc = 0
+  while pc >= 0 && (offset = input[pc])
+    n += 1
+    input[pc] = offset + (offset >= lim ? -1 : 1)
+    pc += offset
+  end
+  n
+end
+
+input = ARGF.map(&method(:Integer)).freeze
+
+puts run(input, Float::INFINITY)
+puts run(input, 3)