112 lines
2.4 KiB
C
112 lines
2.4 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdbool.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
#include <getopt.h>
|
|
#include <sqlite3.h>
|
|
#include "segmenttree.h"
|
|
|
|
int main(int argc, char* argv[]) {
|
|
char *file = "cards";
|
|
bool verbose = false;
|
|
|
|
/* Proccess args */
|
|
static struct option long_options[] = {
|
|
{"file", required_argument, NULL, 'f'},
|
|
{"verbose", no_argument, NULL, 'v'}
|
|
};
|
|
while (1) {
|
|
int option_index = 0;
|
|
int c = getopt_long(argc, argv, "f:v", long_options, &option_index);
|
|
if (c == -1) break;
|
|
switch (c) {
|
|
case 'f': file = strdup(optarg); break;
|
|
case 'v': verbose = true; break;
|
|
default: abort();
|
|
}
|
|
}
|
|
|
|
/* Seed the RNG */
|
|
srand(time(0));
|
|
|
|
/* Connect to db */
|
|
sqlite3 *db;
|
|
sqlite3_open(file, &db);
|
|
|
|
/* Get number of cards */
|
|
sqlite3_stmt *stmt;
|
|
sqlite3_prepare_v3(db, "SELECT COUNT(*) FROM cards", -1, 0, &stmt, NULL);
|
|
sqlite3_step(stmt);
|
|
int N = sqlite3_column_int(stmt, 0);
|
|
sqlite3_finalize(stmt);
|
|
|
|
/* Get card weights */
|
|
sqlite3_prepare_v3(db, "SELECT weight FROM cards", -1, 0, &stmt, NULL);
|
|
seg = (int*)malloc(4 * N * sizeof(int));
|
|
build(stmt, 0, N - 1, 1);
|
|
sqlite3_finalize(stmt);
|
|
|
|
if (verbose) {
|
|
for (int i = 0; i < 4 * N; i++) {
|
|
printf("%d ", seg[i]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
/* Disable input buffering */
|
|
system("stty -F /dev/tty cbreak min 1");
|
|
system("stty -F /dev/tty -echo");
|
|
|
|
while (true) {
|
|
int x = (long long)rand() * rand() % seg[1];
|
|
int res[2];
|
|
query(res, x, 0, N-1, 1);
|
|
int w = res[0], i = res[1];
|
|
|
|
if (verbose) {
|
|
printf("%d %d %d %d\n", seg[1], x, w, i);
|
|
}
|
|
|
|
/* Get card contents from database */
|
|
sqlite3_prepare_v3(db, "SELECT key, val FROM cards WHERE idx=?", -1, 0, &stmt, NULL);
|
|
sqlite3_bind_int(stmt, 1, i);
|
|
sqlite3_step(stmt);
|
|
char *key, *val;
|
|
key = strdup(sqlite3_column_text(stmt, 0));
|
|
val = strdup(sqlite3_column_text(stmt, 1));
|
|
sqlite3_finalize(stmt);
|
|
|
|
printf("> %s\n", key);
|
|
|
|
/* Wait for confirmation */
|
|
char b = getchar();
|
|
printf("%s\n", val);
|
|
|
|
/* Read user input */
|
|
b = getchar();
|
|
if (b == 'y') {
|
|
w >>= 1;
|
|
}
|
|
else if (b == 'n') {
|
|
w <<= 3;
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
|
|
/* Update segment tree and database */
|
|
update(i, w, 0, N - 1, 1);
|
|
sqlite3_prepare_v3(db, "UPDATE cards SET weight=? WHERE idx=?", -1, 0, &stmt, NULL);
|
|
sqlite3_bind_int(stmt, 1, w);
|
|
sqlite3_bind_int(stmt, 2, i);
|
|
sqlite3_step(stmt);
|
|
sqlite3_finalize(stmt);
|
|
}
|
|
|
|
/* Cleanup */
|
|
system("stty -F /dev/tty echo");
|
|
sqlite3_close(db);
|
|
}
|