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c 2024 3 part 2

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This commit is contained in:
Bill Rossi 2024-12-03 02:57:47 -05:00
parent 99f7f21611
commit d7fc4fb192
1 changed files with 48 additions and 43 deletions
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13
c/2024/3/mull_it_over.c
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@ -11,14 +11,19 @@ int main() {
char *line; char *line;
int sum = 0; int sum = 0;
int cond_sum = 0;
char d1[10], d2[10]; char d1[10], d2[10];
int d1_index, d2_index; int d1_index, d2_index;
while ((line = aoc_read_line()) != NULL) {
enum State state = M; enum State state = M;
char *c = line; bool do_mult = true;
char *c = aoc_read_input();
while(*c != '\0') { while(*c != '\0') {
if (memcmp(c, "do()", 4) == 0) do_mult = true;
else if (memcmp(c, "don't()", 7) == 0) do_mult = false;
switch (state) { switch (state) {
case M: case M:
if (*c == 'm') state = U; if (*c == 'm') state = U;
@ -52,6 +57,7 @@ int main() {
d1[d1_index] = '\0'; d1[d1_index] = '\0';
d2[d2_index] = '\0'; d2[d2_index] = '\0';
sum += atoi(d1) * atoi(d2); sum += atoi(d1) * atoi(d2);
if (do_mult) cond_sum += atoi(d1) * atoi(d2);
state = M; state = M;
} }
else state = M; else state = M;
@ -59,10 +65,9 @@ int main() {
} }
c++; c++;
} }
}
printf("Part 1: %d\n", sum); printf("Part 1: %d\n", sum);
// printf("Part 2: %d\n", safe_skip_report_count); printf("Part 2: %d\n", cond_sum);
aoc_free(); aoc_free();
return 0; return 0;