1 files changed, 0 insertions, 112 deletions
diff --git a/21/solve.py b/21/solve.py
deleted file mode 100644
index e2b8fce..0000000
--- a/21/solve.py
+++ /dev/null
@@ -1,112 +0,0 @@
-import sys
-sys.path.append("../common")
-import aoc
-from math import sqrt
-
-def parse_command(l):
-    s = l.split(" ")
-    args = [s[0]]
-    args = args + [int(v) for v in s[1:]]
-    return args
-
-data = aoc.data.split("\n")
-
-inspaddr = int(data[0][4:])
-instructs = [parse_command(l) for l in data[1:] if len(l) != 0]
-
-register = [0 for x in range(inspaddr+1)]
-
-opmap = dict()
-opmap["addr"] = lambda a, b : register[a] + register[b]
-opmap["addi"] = lambda a, b : register[a] + b
-opmap["mulr"] = lambda a, b : register[a] * register[b]
-opmap["muli"] = lambda a, b : register[a] * b
-opmap["banr"] = lambda a, b : register[a] & register[b]
-opmap["bani"] = lambda a, b : register[a] & b
-opmap["borr"] = lambda a, b : register[a] | register[b]
-opmap["bori"] = lambda a, b : register[a] | b
-opmap["setr"] = lambda a, b : register[a]
-opmap["seti"] = lambda a, b : a
-opmap["gtir"] = lambda a, b : 1 * (a > register[b])
-opmap["gtri"] = lambda a, b : 1 * (register[a] > b)
-opmap["gtrr"] = lambda a, b : 1 * (register[a] > register[b])
-opmap["eqir"] = lambda a, b : 1 * (a == register[b])
-opmap["eqri"] = lambda a, b : 1 * (register[a] == b)
-opmap["eqrr"] = lambda a, b : 1 * (register[a] == register[b])
-
-def varname(v):
-    return "R"+str(v)
-
-dismap = dict()
-dismap["addr"] = lambda a, b : "%s + %s" % (varname(a), varname(b))
-dismap["addi"] = lambda a, b : "%s + %d" % (varname(a), b)
-dismap["mulr"] = lambda a, b : "%s * %s" % (varname(a), varname(b))
-dismap["muli"] = lambda a, b : "%s * %d" % (varname(a), b)
-dismap["banr"] = lambda a, b : "%s & %s" % (varname(a), varname(b))
-dismap["bani"] = lambda a, b : "%s & %d" % (varname(a), b)
-dismap["borr"] = lambda a, b : "%s | %s" % (varname(a), varname(b))
-dismap["bori"] = lambda a, b : "%s | %d" % (varname(a), b)
-dismap["setr"] = lambda a, b : "%s" % (varname(a))
-dismap["seti"] = lambda a, b : "%d" % (a)
-dismap["gtir"] = lambda a, b : "(%d > %s)" % (a, varname(b))
-dismap["gtri"] = lambda a, b : "(%s > %d)" % (varname(a), b)
-dismap["gtrr"] = lambda a, b : "(%s > %s)" % (varname(a), varname(b))
-dismap["eqir"] = lambda a, b : "(%d == %s)" % (a, varname(b))
-dismap["eqri"] = lambda a, b : "(%s == %d)" % (varname(a), b)
-dismap["eqrr"] = lambda a, b : "(%s == %s)" % (varname(a), varname(b))
-
-def disassemble(s, e):
-    for i in range(s, e):
-        ins = instructs[i]
-        aoc.debug(i ,":",varname(ins[3]),"=", dismap[ins[0]](ins[1], ins[2]))
-    aoc.debug()
-
-def execute():
-    global register, insptr
-
-    while register[inspaddr] < len(instructs):
-        insptr = register[inspaddr]
-        ins = instructs[insptr]
-
-        # execute command
-        if len(register) <= ins[3]:
-            register += [0 for x in range(ins[3] - len(register) + 1)]
-        register[ins[3]] = opmap[ins[0]](ins[1], ins[2])
-
-        # part 1
-        #if insptr == 13 and register[4] == 1:
-        #    aoc.debug(register)
-        #    return
-
-        # increment instruction pointer
-        register[inspaddr] += 1
-
-def solve1(args):
-    r0 = 1797184 # (first opportunity for comparison r1 and r0)
-
-    #disassemble(0, len(instructs))
-    #execute()
-
-    return r0
-
-def solve2(args):
-    r1 = 0
-    candidates = list()
-    while True:
-        r4 = r1 | 65536 # flip 9th bit
-        r1 = 3798839
-        while True: # scan bytes of r4 and add them to r1 and multiply
-            r5 = r4 & 255
-            r1 += r5
-            r1 = r1 & 16777215
-            r1 *= 65899  # equals 1 00000001 01101011
-            r1 = r1 & 16777215
-            if r4 < 256:
-                break
-            r4 = int(r4/256) # bit shift 8 to the right
-        if r1 not in candidates:
-            candidates.append(r1)
-        elif r1 == candidates[-1]:
-            return candidates[-1]
-
-aoc.run(solve1, solve2, sols=[1797184, 11011493])