Exemplo n.º 1
0
void sieve(void)
{
	int idx = 1;
	hash = 5381;
	print_prime(idx++, 2);
	for (int i = 0; i < BITMAP_SIZE; i++) {
		if (bitmap_get(i))
			continue;
		print_prime(idx++, 3+2*i);
		for (int j = 2*(3+2*i);; j += 3+2*i) {
			if (j%2 == 0)
				continue;
			int k = (j-3)/2;
			if (k >= BITMAP_SIZE)
				break;
			bitmap_set(k);
		}
	}

	print_str("checksum: ");
	print_hex(hash, 8);

	if (hash == 0x1772A48F) {
		print_str(" OK\n");
	} else {
		print_str(" ERROR\n");
		__asm__ volatile ("sbreak");
	}
}
Exemplo n.º 2
0
int main(void)
{
  int n, i, m;
  scanf("%d%d", &m, &n);
  printf(" %d 与 %d 之间的素数为:\n", m, n);
  print_prime(m, n);

  return 0;
}
Exemplo n.º 3
0
int main()
{
	int n;
	calc_prime();
	calc_prime_index();
	while(scanf("%d",&n) != -1) {
		if (prime_index[n].count == 0) {
			printf("0\n");
		} else {
			printf("%d\n",prime_index[n].count);
			print_prime(n);
		}
	}
	return 0;
}
Exemplo n.º 4
0
int main(int argc, const char * argv[])
{
//    char str[] = "aabcbc";
//    printf("str=%s\n", str);
    // 删除一个字符串当中的第一个符合要求的子串
//        del_substr(str, "abc");
//        printf("after del_substr(str, \"abc\"),str=%s\n", str);
    
//    reverse_str(str);
//    printf("after reverse_str(str),str=%s\n", str);
    char *result =(char *)malloc(SIZE * sizeof(char));
    memset(result, 1, SIZE * sizeof(char));
//    for (int i = 0; i < SIZE; i++)
//    {
//        printf("%i", *(result + i));
//    }
    
    find_all_prime(result, SIZE);
    print_prime(result, SIZE);
}
Exemplo n.º 5
0
int main(int argc, char *argv[])
{
        char *prime;
        BIGNUM *num_tmp;
        long int num_bits = 0;
        
        if(argc >= 2 && argv[1]) 
                num_bits = atol(argv[1]);
        else
                num_bits = 1024;
        printf("Prime generator by (c) 2004 Paolo Ardoino < *****@*****.** >\n usage: ./genprimes [num_bits]\nGenerating %ld bits primes.\nWait…\n",num_bits);
        num_tmp = BN_new();
        for (;;) {
                BN_generate_prime(num_tmp,num_bits,1,NULL,NULL,status,NULL);
                prime = (char *)malloc(BN_num_bytes(num_tmp));
                prime = BN_bn2dec(num_tmp);
                print_prime(prime);
                free(prime);
        }
        BN_free(num_tmp);
}