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
|
#include "aoc.h"
#include "icc.h"
#include "util.h"
#include "allocator.h"
#include <stdlib.h>
#include <stdio.h>
void
part1(void)
{
struct icc icc;
int res, rc;
icc_init(&icc);
icc_parse_inst(&icc, aoc.input, aoc.input_size);
icc_set_inst(&icc, 1, 12);
icc_set_inst(&icc, 2, 2);
while (icc.state != ICC_HALT) {
rc = icc_step_inst(&icc);
if (rc) die("icc step failed");
}
icc_get_inst(&icc, 0, &res);
aoc.answer = aprintf("%i", res);
aoc.solution = "5098658";
icc_deinit(&icc);
}
void
part2(void)
{
struct icc icc;
struct dvec inst;
int a, b, c;
int rc;
icc_init(&icc);
icc.abort_on_err = false;
icc_parse_inst(&icc, aoc.input, aoc.input_size);
dvec_init(&inst, sizeof(int), 0, &stdlib_heap_allocator);
dvec_copy(&inst, &icc.instructions);
icc_debug_dump(&icc, &inst);
for (a = 0; a < 100; a++) {
for (b = 0; b < 100; b++) {
icc_reset(&icc, &inst);
icc_set_inst(&icc, 1, a);
icc_set_inst(&icc, 2, b);
aoc_debug("\nTrying a:%i b:%i\n\n", a, b);
while (icc.state != ICC_HALT) {
rc = icc_step_inst(&icc);
if (rc == ICC_OOB_WRITE) {
dvec_reserve(&icc.instructions,
(size_t) icc.write_addr + 1);
icc.instructions.len = MAX(
icc.instructions.len,
(size_t) icc.write_addr + 1);
} else if (rc != ICC_OK) {
break;
}
}
icc_debug_dump(&icc, &inst);
icc_get_inst(&icc, 0, &c);
if (c == 19690720)
goto exit;
}
}
exit:
aoc.answer = aprintf("%02i%02i", a, b);
aoc.solution = "5064";
dvec_deinit(&inst);
icc_deinit(&icc);
}
|
