Spaces:
Running
Running
File size: 5,534 Bytes
a4da721 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 |
def load_data(file):
with open(file) as f:
data = f.readlines()
values = {}
for idx, line in enumerate(data):
if line == "\n":
break
name, value = line.split(":")
value = int(value)
values[name] = value
instructions = {}
for line in data[idx+1:]:
instruction, assignment = line.split("->")
instructions[assignment.strip("\n").strip()] = instruction.strip()
return values, instructions
def eval(v0, v1, op):
if op == "AND":
return v0 and v1
elif op == "OR":
return v0 or v1
elif op == "XOR":
return v0 ^ v1
else:
raise ValueError("Unknown OP: ", op)
file = "input.txt"
values, instructions = load_data(file)
assignments = list(instructions.keys())
# for assignment, inst in instructions.items():
while len(assignments) > 0:
assignment = assignments.pop(0)
inst = instructions[assignment]
x0, op, x1 = inst.split()
v0 = values.get(x0)
v1 = values.get(x1)
if v0 is not None and v1 is not None:
values[assignment] = eval(v0, v1, op)
else:
assignments.append(assignment)
z_wires = {v: val for v, val in values.items() if v.startswith("z")}
z_wire_keys = sorted(z_wires.keys())[::-1]
bits = ""
for k in z_wire_keys:
bits += str(values[k])
value = int(bits, 2)
print(value)
## Part 2
# import copy
#
# def get_val(letter, values):
#
# letter_wires = {v: val for v, val in values.items() if v.startswith(letter)}
# letter_wire_keys = sorted(letter_wires.keys())[::-1]
#
# bits = ""
# for k in letter_wire_keys:
# bits += str(values[k])
#
# value = int(bits, 2)
#
# return value
#
#
# def get_bits(letter, values):
#
# letter_wires = {v: val for v, val in values.items() if v.startswith(letter)}
# letter_wire_keys = sorted(letter_wires.keys())[::-1]
#
# bits = ""
# for k in letter_wire_keys:
# bits += str(values[k])
#
# return bits
#
# def compute_instructions(values, instructions):
# values = values.copy()
# assignments = list(instructions.keys())
# while len(assignments) > 0:
# assignment = assignments.pop(0)
#
# inst = instructions[assignment]
# x0, op, x1 = inst.split()
#
#
# v0 = values.get(x0)
# v1 = values.get(x1)
#
# if v0 is not None and v1 is not None:
# values[assignment] = eval(v0, v1, op)
# else:
# assignments.append(assignment)
#
#
#
# return values, instructions
#
#
# def swap_instructions(k1, k2, instructions):
# inst1 = instructions[k1]
# inst2 = instructions[k2]
#
# instructions[k1] = inst2
# instructions[k2] = inst1
#
# return instructions
#
# def swap_2_instructions(swap1, swap2, instructions):
# instructions = instructions.copy()
#
# for swap in [swap1, swap2]:
# k1, k2 = swap
# instructions = swap_instructions(k1, k2, instructions)
#
# return instructions
#
#
# # Test part 1 still works
# # file = "test.txt"
# # values, instructions = load_data(file)
# # new_vals, new_inst = compute_instructions(values.copy(), instructions.copy())
# # z_val = get_val("z", new_vals)
# # print(z_val)
#
# def compute_instructions_2(values, instructions):
# values = values.copy()
# assignments = list(instructions.keys())
# count = 0
# while len(assignments) > 0 and count < 1000:
# count += 1
# assignment = assignments.pop(0)
#
# inst = instructions[assignment]
# x0, op, x1 = inst.split()
#
#
# v0 = values.get(x0)
# v1 = values.get(x1)
#
# if v0 is not None and v1 is not None:
# values[assignment] = eval(v0, v1, op)
# else:
# assignments.append(assignment)
#
# return values, instructions
#
# # file = "test2.txt"
# file = "input.txt"
# values, instructions = load_data(file)
#
# x_val = get_val("x", values)
# y_val = get_val("y", values)
#
# x_bits = get_bits("x", values)
# y_bits = get_bits("y", values)
#
#
# swap_1 = ("z05", "z00")
# swap_2 = ("z01", "z02")
#
# new_inst = swap_2_instructions(swap_1, swap_2, instructions)
# new_vals, new_inst = compute_instructions(values.copy(), new_inst.copy())
# z_val = get_val("z", new_vals)
# z_bits = get_bits("z", new_vals)
#
# if x_val + y_val == z_val:
# print("Good!")
#
#
# def mega_brute_force_of_life():
# k = list(instructions.keys())
#
# for i in range(len(k)):
# for j in range(i+1, len(k)):
# swap_1 = (k[i], k[j])
#
# k_remain = k.copy()
# k_remain.remove(k[i])
# k_remain.remove(k[j])
#
# for ii in range(len(k_remain)):
# for jj in range(ii+1, len(k_remain)):
# print(jj)
# swap_2 = (k_remain[ii], k_remain[jj])
#
# print(swap_1)
# print(swap_2)
#
# new_inst = swap_2_instructions(swap_1, swap_2, instructions)
# new_vals, new_inst = compute_instructions_2(values.copy(), new_inst.copy())
#
# z_val = get_val("z", new_vals)
# z_bits = get_bits("z", new_vals)
#
# if x_val + y_val == z_val:
# print("Good!")
# return swap_1, swap_2
#
# # swap_1, swap_2 = mega_brute_force_of_life()
|