-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathintcode.py
178 lines (172 loc) · 4.53 KB
/
intcode.py
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
def intcode_v1(i):
i = i[:]
pc = 0
while True:
opcode = i[pc]
if opcode == 1:
i[i[pc+3]] = i[i[pc+1]] + i[i[pc+2]]
pc += 4
elif opcode == 2:
i[i[pc+3]] = i[i[pc+1]] * i[i[pc+2]]
pc += 4
elif opcode == 99:
break
else:
raise ValueError
return i[0]
def intcode_v2(i):
i = i[:]
pc = 0
while True:
opcode, parameters, dest = decode(i, pc)
if opcode == 1:
i[dest] = parameters[0] + parameters[1]
pc += 4
elif opcode == 2:
i[dest] = parameters[0] * parameters[1]
pc += 4
elif opcode == 3:
i[dest] = int(input())
pc += 2
elif opcode == 4:
print(parameters[0])
pc += 2
elif opcode == 5:
if parameters[0] != 0:
pc = parameters[1]
else:
pc += 3
elif opcode == 6:
if parameters[0] == 0:
pc = parameters[1]
else:
pc += 3
elif opcode == 7:
if parameters[0] < parameters[1]:
i[dest] = 1
else:
i[dest] = 0
pc += 4
elif opcode == 8:
if parameters[0] == parameters[1]:
i[dest] = 1
else:
i[dest] = 0
pc += 4
elif opcode == 99:
break
else:
raise ValueError
return i[0]
NUM_PARAMS = {1: 2, 2: 2,
3: 0, 4: 1,
5: 2, 6: 2,
7: 2, 8: 2,
9: 1, 99: 0}
def decode(i, pc, offset=0):
code = i[pc]
opcode = code % 100
num = NUM_PARAMS[opcode]
parameters = []
for j in range(1, num+1):
pos = 10 * 10**j
mode = (code // pos) % 10
if mode == 1:
parameters.append(i[pc+j])
elif mode == 2:
index = i[pc+j] + offset
if index >= len(i):
parameters.append(0)
else:
parameters.append(i[index])
else:
index = i[pc+j]
if index >= len(i):
parameters.append(0)
else:
parameters.append(i[index])
dest = 0
if opcode in (1, 2, 3, 7, 8):
pos = 10 * 10**(num+1)
mode = (code // pos) % 10
if mode == 1:
raise ValueError
elif mode == 2:
dest = i[pc+num+1] + offset
else:
dest = i[pc+num+1]
if dest >= len(i):
needed = dest - len(i) + 1
for _ in range(needed):
i.append(0);
return opcode, parameters, dest
def intcode_v3(i):
i = i[:]
pc = 0
offset = 0
while True:
opcode, parameters, dest = decode(i, pc, offset)
if opcode == 1:
i[dest] = parameters[0] + parameters[1]
pc += 4
elif opcode == 2:
i[dest] = parameters[0] * parameters[1]
pc += 4
elif opcode == 3:
i[dest] = yield None
pc += 2
elif opcode == 4:
yield parameters[0]
pc += 2
elif opcode == 5:
if parameters[0] != 0:
pc = parameters[1]
else:
pc += 3
elif opcode == 6:
if parameters[0] == 0:
pc = parameters[1]
else:
pc += 3
elif opcode == 7:
if parameters[0] < parameters[1]:
i[dest] = 1
else:
i[dest] = 0
pc += 4
elif opcode == 8:
if parameters[0] == parameters[1]:
i[dest] = 1
else:
i[dest] = 0
pc += 4
elif opcode == 9:
offset += parameters[0]
pc += 2
elif opcode == 99:
break
else:
raise ValueError
def ascii_input(prog, data):
for i in [ord(c) for c in data]:
output = prog.send(i)
return output
def ascii_output(prog, initial=None):
if initial is None:
output = next(prog)
else:
output = initial
ret = []
try:
while output is not None:
if output < 128:
ret.append(chr(output))
if ret[-1] == '\n':
yield ''.join(ret)
ret.clear()
else:
ret.append(str(output))
output = next(prog)
except StopIteration:
pass
yield ''.join(ret)