84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
|
#include <stdio.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
int x;
|
||
|
|
int y;
|
||
|
|
int count;
|
||
|
|
} Coordinates;
|
||
|
|
|
||
|
|
int hat_dist(Coordinates c1, Coordinates c2) {
|
||
|
|
return abs(c1.x - c2.x) + abs(c1.y - c2.y);
|
||
|
|
}
|
||
|
|
|
||
|
|
int part_1(FILE *input) {
|
||
|
|
rewind(input);
|
||
|
|
Coordinates coord_list[50] = {0};
|
||
|
|
Coordinates *coord = coord_list;
|
||
|
|
Coordinates max = { .x = 0, .y = 0 };
|
||
|
|
Coordinates min = { .x = 1000, .y = 1000 };
|
||
|
|
while(fscanf(input, "%d, %d\n", &(coord->x), &(coord->y)) == 2) {
|
||
|
|
if (coord->x > max.x) max.x = coord->x;
|
||
|
|
if (coord->y > max.y) max.y = coord->y;
|
||
|
|
if (coord->x < min.x) min.x = coord->x;
|
||
|
|
if (coord->y < min.y) min.y = coord->y;
|
||
|
|
|
||
|
|
// printf("%d, %d\n", coord->x, coord->y);
|
||
|
|
coord++;
|
||
|
|
}
|
||
|
|
|
||
|
|
int width = max.x - min.x + 1;
|
||
|
|
int height = max.y - min.y + 1;
|
||
|
|
// Time to malloc ha haaaaaaa
|
||
|
|
char *grid = malloc(width * height * sizeof(char));
|
||
|
|
|
||
|
|
Coordinates curr = {0};
|
||
|
|
for(int i = 0; i < width * height; i++) {
|
||
|
|
curr.x = i % width + min.x;
|
||
|
|
curr.y = i / height + min.y;
|
||
|
|
int min_dist = width + height;
|
||
|
|
char min_coord_index = 0;
|
||
|
|
for(int j = 0; j < 50; j++) {
|
||
|
|
int hat = hat_dist(curr, coord_list[j]);
|
||
|
|
if (hat == 0) {
|
||
|
|
min_dist = hat;
|
||
|
|
min_coord_index = -2;
|
||
|
|
break;
|
||
|
|
} else if (hat < min_dist){
|
||
|
|
min_dist = hat;
|
||
|
|
min_coord_index = j;
|
||
|
|
} else if (hat == min_dist) {
|
||
|
|
min_coord_index = -1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
grid[i] = min_coord_index;
|
||
|
|
if(curr.x == min.x) puts("");
|
||
|
|
printf("%c", min_coord_index + 'A');
|
||
|
|
}
|
||
|
|
|
||
|
|
puts("");
|
||
|
|
|
||
|
|
free(grid);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int part_2(FILE *input) {
|
||
|
|
rewind(input);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main() {
|
||
|
|
char *input_file_path = "../data/2018/6/input.txt";
|
||
|
|
FILE *input = fopen(input_file_path, "r");
|
||
|
|
if (input == NULL) {
|
||
|
|
printf("Can't open file %s\n", input_file_path);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
printf("Part 1: %d\n", part_1(input));
|
||
|
|
printf("Part 2: %d\n", part_2(input));
|
||
|
|
fclose(input);
|
||
|
|
}
|