Bai Youwei spread out the picture she drew for everyone to see.

"We've been walking for so long, and now we've figured out that there are twelve horizontal rooms, and if you mark them according to the numerical numbers from 1 to 12, the Minotaur will last stay at No. 2, and we're now at No. 12.

Assuming that the Minotaur does not make any movement while eating, it will have to travel at least 8 blocks to catch up with us. ”

Bai Youwei was at the location of the teleportation point and tapped with her finger.

"It makes sense that this is a distance that you can't catch up with anyway, but there are an unknown number of waypoints in the maze, and if I were a minotaur, I would choose a location that is not far from each waypoint, and by predicting where the player is going, I will choose the corresponding waypoint.

Therefore, if you want not to be caught up by the minotaurs, you must meet at least two conditions.

First, avoid all waypoints;

Second, avoid all blind spots. ”

Chen Hui said hesitantly: "But we are ...... now It's near the waypoint, but it's also very close to the dead end......"

Bai Youwei pondered for a while and said, "Let's go one block to the west now, and then go north, if this maze is a 12x12 square, then we only need to advance nine times to reach the end." ”

"Are you sure it's 12x12?" Du Lai asked.

"I'm just saying it's possible." Bai Youwei said, "Whether it's a maze or a game, they usually prefer regular shapes, the most common is the square, now we know that there are 12 locks, 12 keys, and the horizontal room also happens to be 12 clothes and pants racks, if the longitudinal one is also 12, then this maze is likely to be a square." ”

Leonid asked: "What if you know that it is a square?" ”

"Not really." Bai Youwei lowered her eyes and whispered, "At least when the minotaur chases, we won't be forced into a dead end again." ”

"But ......," Chen Hui hesitated, "if you want to confirm this...... At the very least, we have to go through the dead end again. ”

They had already walked two "corners", and in order to prove that the labyrinth was square, at least one more "corner" needed to be determined.

And when you walk into the "dead end", it is very easy to be surrounded by the minotaur.

Bai Youwei thought for a while and said calmly: "There is no way to do this, even if we know that we can't go to the dead end, in order to clarify the location of each key, we still need to search every room in the labyrinth." ”

"Let's go, then." Shen Mo said lightly, "Get out as soon as possible." ”

Bai Youwei glanced at him and said, "Let's go west." ”

The group advanced one square to the west, and when the chickens were herding, Du Lai saw a key in the stone chamber on the west side, so they advanced one square and got the sixth key.

"I'm kind of convinced now that this maze might be 12x12." Du said.

Azalina asked him, "Why?" ”

"Because the probability of encountering the key is very high." Du Lai curled the corners of his mouth, "If the number of rooms here is as high as a thousand, or ten thousand, it's almost impossible to pick up the key by luck, right?" However, if it is 12x12, then the total number of rooms is 144, excluding the teleportation point room, the probability of picking up the key ...... Probably around 10%. ”

"Is 10% high?" Chen Hui couldn't help but ask.

Du Lai smiled and asked her, "Do you know the two-color ball?" ”

Chen Hui nodded, "You know, what's wrong?" ”

"The lowest prize of the two-color ball, that is, the fifth prize, has a bonus of 5 yuan, and the probability of winning is about 6%." Du said, "The probability of us picking up the key is much higher than the probability of winning the two-color ball." ”

Bai Youwei held the key and thought for a while, and said, "We're going to go back and put the key in the stone room on the west side of the teleportation point." ”