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day 2

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Lucia Ceionia
2025-12-03 00:52:18 -06:00
parent 5d24720761
commit 06816c068c
5 changed files with 506 additions and 32 deletions
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72
day1.c
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@@ -1,23 +1,26 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdcountof.h>
#include "lib.h"
#define DBG 1
#define RUN_PART1 1
#define RUN_PART2 1
#define RUN_TEST1 1
#define RUN_TEST2 1
#define TEST1_EXPECT 3
#define TEST2_EXPECT 6
static
char input[] = {
#embed "day1_input"
#embed "day1_input.txt"
};
static
char test[] = {
#embed "day1_test"
#embed "day1_test.txt"
};
unsigned grabnum(const char *s, const char **end) {
unsigned r = 0;
for (; *s >= '0' && *s <= '9'; s++)
r = r * 10 + (*s - '0');
*end = s;
return r;
}
static
unsigned long do_part1(size_t src_len, const char src[src_len]) {
const char *s = src;
unsigned long count = 0;
@@ -36,6 +39,7 @@ unsigned long do_part1(size_t src_len, const char src[src_len]) {
return count;
}
static
unsigned do_part2(size_t src_len, const char src[src_len]) {
const char *s = src, *ns = s + 1;
unsigned count = 0;
@@ -70,24 +74,40 @@ unsigned do_part2(size_t src_len, const char src[src_len]) {
return count;
}
int main() {
printf("PART 1 TEST: ");
if (unsigned long v = do_part1(countof(test), test); v != 3) {
printf("FAILED (got %lu, expected 3)\n", v);
void _start() {
#if RUN_TEST1
print("PART 1 TEST: ");
if (unsigned long v = do_part1(countof(test), test); v != TEST1_EXPECT) {
print("FAILED (got ");
printd(v);
print(", expected " xstr(TEST1_EXPECT) ")\n");
} else {
printf("PASSED\n");
print("PASSED\n");
}
#endif
printf("PART 1 RESULT: %lu\n",
do_part1(countof(input), input));
#if RUN_PART1
print("PART 1 RESULT: ");
printd(do_part1(countof(input), input));
print("\n");
#endif
printf("PART 2 TEST: ");
if (unsigned v = do_part2(countof(test), test); v != 6) {
printf("FAILED (got %u, expected 6)\n", v);
#if RUN_TEST2
print("PART 2 TEST: ");
if (unsigned v = do_part2(countof(test), test); v != TEST2_EXPECT) {
print("FAILED (got ");
printd(v);
print(", expected " xstr(TEST2_EXPECT) ")\n");
} else {
printf("PASSED\n");
print("PASSED\n");
}
#endif
printf("PART 2 RESULT: %u\n",
do_part2(countof(input), input));
#if RUN_PART2
print("PART 2 RESULT: ");
printd(do_part2(countof(input), input));
print("\n");
#endif
syscall(SYS_exit_group, 0);
}