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c 2024 part 2 got it in one hell yeah

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This commit is contained in:
Bill Rossi 2024-12-04 05:58:59 -05:00
parent 413d4d4631
commit 8e5f922f63
1 changed files with 27 additions and 1 deletions
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28
c/2024/4/ceres_search.c
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@ -87,6 +87,30 @@ int target_string_count(Puzzle *puzzle, int index) {
return count;
}
char mas[4];
int xmas_count(Puzzle *puzzle, int index) {
if (puzzle->text[index] != 'A') return 0;
int count = 0;
int row = index / puzzle->width;
int column = index % puzzle->width;
if (
puzzle_inbounds(puzzle, row - 1, column + 1) &&
puzzle_inbounds(puzzle, row + 1, column + 1) &&
puzzle_inbounds(puzzle, row + 1, column - 1) &&
puzzle_inbounds(puzzle, row - 1, column - 1)
) {
mas[0] = puzzle_char_at(puzzle, row - 1, column + 1);
mas[1] = puzzle_char_at(puzzle, row + 1, column + 1);
mas[2] = puzzle_char_at(puzzle, row + 1, column - 1);
mas[3] = puzzle_char_at(puzzle, row - 1, column - 1);
if (((mas[0] == 'M' && mas[2] == 'S') || (mas[0] == 'S' && mas[2] == 'M')) &&
((mas[1] == 'M' && mas[3] == 'S') || (mas[1] == 'S' && mas[3] == 'M'))) {
return 1;
}
}
return 0;
}
int main() {
char *input = aoc_read_input();
int width = strchr(input, '\n') - input + 1;
@ -98,13 +122,15 @@ int main() {
p.height = height;
int sum = 0;
int xmas_sum = 0;
for (int i = 0; i < strlen(input); i++) {
sum += target_string_count(&p, i);
xmas_sum += xmas_count(&p, i);
}
printf("Part 1: %d\n", sum);
// printf("Part 2: %d\n", cond_sum);
printf("Part 2: %d\n", xmas_sum);
aoc_free();
return 0;