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/* b01902062 藍挺瑋 */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "xwrap.h"
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
int main (int argc, char* argv[]) {
if (argc < 4) {
fprintf (stderr, "Usage: %s judge_id player_index random_key\n", argv[0]);
return 1;
}
char* judge_id = argv[1];
char* player_index = argv[2];
char* random_key = argv[3];
pid_t mypid = getpid();
srandom (mypid + getppid () + getpgid (mypid) + getsid (mypid) + time (NULL));
FILE* rf = NULL;
FILE* wf = NULL;
char* fifoname;
int oth[4];
int cnt[3] = { 0, 0, 0 };
int i = 0;
do {
if (wf == NULL) {
wf = fopen (fifoname = xstrcat ("judge", judge_id, ".FIFO", (char*)NULL), "wb");
if (wf == NULL) {
fprintf (stderr, "%s: Cannot open `%s\': %s\n", argv[0], fifoname, strerror (errno));
return 1;
}
free (fifoname);
}
const char* val = "135";
if (i) {
fprintf (wf, "%s %s %c\n", player_index, random_key, val[random () % 3]);
} else {
int hismin = INT_MAX;
int choice = 0;
for (int j = 0; j < 4; j++) {
switch (oth[j]) {
case 1: cnt[0]++; break;
case 3: cnt[1]++; break;
case 5: cnt[2]++; break;
}
}
for (int j = 0; j < 3; j++) {
if (cnt[j] < hismin) {
choice = j;
hismin = cnt[j];
}
}
fprintf (wf, "%s %s %c\n", player_index, random_key, val[choice]);
}
fflush (wf);
if (rf == NULL) {
rf = fopen (fifoname = xstrcat ("judge", judge_id,
"_", player_index, ".FIFO", (char*)NULL), "rb");
if (rf == NULL) {
fprintf (stderr, "%s: Cannot open `%s\': %s\n", argv[0], fifoname, strerror (errno));
return 1;
}
free (fifoname);
}
} while (++i < 20 && fscanf (rf, "%d %d %d %d", &oth[0], &oth[1], &oth[2], &oth[3]) == 4);
return 0;
}
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