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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#define FORLINE \
char *line = NULL; \
size_t len = 0; \
while (getline(&line, &len, fp) != EOF)
#define FREELINE \
if (line) \
free(line)
#define SIZE 1024
static void solve(FILE *fp)
{
int one = 0, two = 0; // Parts
int *straight = calloc(4, SIZE * SIZE);
int *diagonal = calloc(4, SIZE * SIZE);
FORLINE
{
int x1, y1, x2, y2;
sscanf(line, "%d,%d -> %d,%d\n", &x1, &y1, &x2, &y2);
int xstart = x1 <= x2 ? x1 : x2;
int xend = x1 >= x2 ? x1 : x2;
if (x1 == x2 || y1 == y2) { // Straight
int ystart = y1 <= y2 ? y1 : y2;
int yend = y1 >= y2 ? y1 : y2;
for (int y = ystart; y <= yend; y++) {
for (int x = xstart; x <= xend; x++) {
straight[y * SIZE + x]++;
diagonal[y * SIZE + x]++;
}
}
} else { // Diagonal
int xneg = x1 > x2 ? -1 : 1;
int yneg = y1 > y2 ? -1 : 1;
for (int a = 0; xstart + a <= xend; a++)
diagonal[(y1 + a * yneg) * SIZE + (x1 + a * xneg)]++;
}
}
FREELINE;
for (int y = 0; y < SIZE; y++) {
for (int x = 0; x < SIZE; x++) {
if (straight[y * SIZE + x] >= 2)
one++;
if (diagonal[y * SIZE + x] >= 2)
two++;
}
}
free(straight);
free(diagonal);
printf("%d\n", one);
printf("%d\n", two);
}
int main(int argc, char *argv[])
{
(void)argc;
(void)argv;
FILE *fp = fopen("input", "r");
if (!fp)
exit(EXIT_FAILURE);
clock_t tic = clock();
solve(fp);
clock_t toc = clock();
printf("TIME: %f seconds\n", (double)(toc - tic) / CLOCKS_PER_SEC);
fclose(fp);
return 0;
}
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