sprechtl/AdventOfCode
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

feat: Day4_1 worky but no worky

Browse source
This commit is contained in:
s-prechtl 2024-12-05 20:57:19 +01:00
parent bc42b0ff30
commit d4f9d91c79
1 changed files with 98 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

99
2024/Day4/src/main.c
View file

@ -6,6 +6,10 @@ int get_rows(const char *filename);
char *get_char(char *word_search, int row, int col);
void init_word_search(char *word_search, const char *filename);
void print_field(char *word_search);
int horizontal(char *word_search);
int vertical(char *word_search);
int diagonal_rtl(char *word_search);
int diagonal_ltr(char *word_search);
int ROWS;
int COLS;
@ -17,7 +21,10 @@ int main(void) {
char *word_search = malloc(ROWS * COLS * sizeof(char));
init_word_search(word_search, filename);
print_field(word_search);
printf(
"%d\n", vertical(word_search) + horizontal(word_search) + diagonal_ltr(word_search) +
diagonal_rtl(word_search)
);
return 0;
}
@ -39,6 +46,94 @@ int get_line_length(const char *filename) {
return length;
}
int horizontal(char *word_search) {
int count = 0;
for (int row = 0; row < ROWS; row++) {
for (int col = 0; (col + 3) < COLS; col++) {
if (*get_char(word_search, row, col) == 'X' &&
*get_char(word_search, row, col + 1) == 'M' &&
*get_char(word_search, row, col + 2) == 'A' &&
*get_char(word_search, row, col + 3) == 'S') {
count++;
} else if (*get_char(word_search, row, col) == 'S' &&
*get_char(word_search, row, col + 1) == 'A' &&
*get_char(word_search, row, col + 2) == 'M' &&
*get_char(word_search, row, col + 3) == 'X') {
count++;
}
}
}
return count;
}
int vertical(char *word_search) {
int count = 0;
for (int row = 0; (row + 3) < ROWS; row++) {
for (int col = 0; col < COLS; col++) {
if (*get_char(word_search, row, col) == 'X' &&
*get_char(word_search, row + 1, col) == 'M' &&
*get_char(word_search, row + 2, col) == 'A' &&
*get_char(word_search, row + 3, col) == 'S') {
count++;
} else if (*get_char(word_search, row, col) == 'S' &&
*get_char(word_search, row + 1, col) == 'A' &&
*get_char(word_search, row + 2, col) == 'M' &&
*get_char(word_search, row + 3, col) == 'X') {
count++;
}
}
}
return count;
}
int diagonal_rtl(char *word_search) {
int count = 0;
for (int row = 0; (row + 3) < ROWS; row++) {
for (int col = 0; (col + 3) < COLS; col++) {
if (*get_char(word_search, row, col) == 'X' &&
*get_char(word_search, row + 1, col + 1) == 'M' &&
*get_char(word_search, row + 2, col + 2) == 'A' &&
*get_char(word_search, row + 3, col + 3) == 'S') {
count++;
} else if (*get_char(word_search, row, col) == 'S' &&
*get_char(word_search, row + 1, col + 1) == 'A' &&
*get_char(word_search, row + 2, col + 2) == 'M' &&
*get_char(word_search, row + 3, col + 3) == 'X') {
count++;
}
}
}
return count;
}
int diagonal_ltr(char *word_search) {
int count = 0;
for (int row = ROWS; (row - 3) >= 0; row--) {
for (int col = COLS; (col - 3) >= 0; col--) {
if (*get_char(word_search, row, col) == 'X' &&
*get_char(word_search, row - 1, col - 1) == 'M' &&
*get_char(word_search, row - 2, col - 2) == 'A' &&
*get_char(word_search, row - 3, col - 3) == 'S') {
count++;
} else if (*get_char(word_search, row, col) == 'S' &&
*get_char(word_search, row - 1, col - 1) == 'A' &&
*get_char(word_search, row - 2, col - 2) == 'M' &&
*get_char(word_search, row - 3, col - 3) == 'X') {
count++;
}
}
}
return count;
}
int get_rows(const char *filename) {
int rows = 0;
FILE *file = fopen(filename, "r");
@ -58,7 +153,7 @@ int get_rows(const char *filename) {
return rows;
}
char *get_char(char *word_search, int row, int col) { return &word_search[row * ROWS + col]; }
char *get_char(char *word_search, int row, int col) { return &word_search[row * COLS + col]; }
void print_field(char *word_search) {
for (int row = 0; row < ROWS; row++) {