1 files changed, 0 insertions, 113 deletions
diff --git a/apps/advent2020/1b.mu b/apps/advent2020/1b.mu
deleted file mode 100644
index a638d228..00000000
--- a/apps/advent2020/1b.mu
+++ /dev/null
@@ -1,113 +0,0 @@
-# https://adventofcode.com/2020/day/1
-#
-# To run (on Linux):
-#   $ git clone https://github.com/akkartik/mu
-#   $ cd mu
-#   $ ./translate_mu apps/advent2020/1b.mu
-#   $ ./a.elf < input
-#   found
-#   143 407 1470
-#   85555470
-#
-# You'll need to register to download the 'input' file for yourself.
-
-fn main -> _/ebx: int {
-  # data structure
-  var numbers-storage: (array int 0x100)  # 256 ints
-  var numbers/esi: (addr array int) <- address numbers-storage
-  var numbers-index/ecx: int <- copy 0
-  # phase 1: parse each line from stdin and add it to numbers
-  {
-    var line-storage: (stream byte 0x100)  # 256 bytes
-    var line/edx: (addr stream byte) <- address line-storage
-    {
-#?       print-string 0, "== iter\n"
-      # read line from stdin
-      clear-stream line
-      read-line-from-real-keyboard line
-      # if line is empty (not even a newline), quit
-      var done?/eax: boolean <- stream-empty? line
-      compare done?, 0/false
-      break-if-!=
-#?       print-stream-to-real-screen line
-      # convert line to int and append it to numbers
-      var n/eax: int <- parse-decimal-int-from-stream line
-#?       print-int32-decimal 0, n
-#?       print-string 0, "\n"
-      var dest/ebx: (addr int) <- index numbers, numbers-index
-      copy-to *dest, n
-      numbers-index <- increment
-#?       print-string 0, "== "
-#?       print-int32-decimal 0, numbers-index
-#?       print-string 0, "\n"
-      loop
-    }
-  }
-  # phase 2: for every pair of distinct numbers, check if the rest of the
-  # array has 2020-it
-  var i/edi: int <- copy 0
-  {
-    compare i, numbers-index
-    break-if->=
-    # for j from i+1 to end
-    var j/edx: int <- copy i
-    j <- increment
-    {
-      compare j, numbers-index
-      break-if->=
-      {
-        compare i, j
-        break-if-=
-        var target/ebx: int <- copy 0x7e4  # 2020
-        var src/edi: (addr int) <- index numbers, i
-        target <- subtract *src
-        var src2/ecx: (addr int) <- index numbers, j
-        target <- subtract *src2
-        {
-          var found?/eax: boolean <- find-after numbers, j, target
-          compare found?, 0/false
-          break-if-=
-          print-string 0, "found\n"
-          print-int32-decimal 0, *src
-          print-string 0, " "
-          print-int32-decimal 0, *src2
-          print-string 0, " "
-          print-int32-decimal 0, target
-          print-string 0, "\n"
-          target <- multiply *src
-          target <- multiply *src2
-          print-int32-decimal 0, target
-          print-string 0, "\n"
-          return 0/success
-        }
-      }
-      j <- increment
-      loop
-    }
-    i <- increment
-    loop
-  }
-  return 1/not-found
-}
-
-fn find-after _numbers: (addr array int), start: int, _target: int -> _/eax: boolean {
-  var numbers/esi: (addr array int) <- copy _numbers
-  var target/edi: int <- copy _target
-  var len/ecx: int <- length numbers
-  var i/eax: int <- copy start
-  i <- increment
-  {
-    compare i, len
-    break-if->=
-    var src/edx: (addr int) <- index numbers, i
-    # if *src == target, return true
-    compare *src, target
-    {
-      break-if-!=
-      return 1/true
-    }
-    i <- increment
-    loop
-  }
-  return 0/false
-}