Entertaining Children

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Xiao Yao said he was willing to try, so Sam didn't accept the ten cards on the table, and started the second round of dealing directly.

In the second round, there are still four players and a dealer with a total of five positions, and the process of dealing the cards is the same, with nine open cards and one hidden card buckled up. After the last ten cards are dealt, Sam buckles himself. After revealing the hidden cards that got up and showing them to Xiao Yao, he withdrew all ten cards.

"Please!" After buckling all the cards, Sam waved his hand.

"Here!" Xiao Yao still followed the order of the first round, reached out and clicked on the leftmost card pile, "Five of Hearts and Eight of Spades!"

"Correct, continue!" Taylor said directly.

He saw the process of Sam dealing the cards just now, and remembered the two cards in front of Xiao Yao, so he didn't bother to pick them up and check them again.

"Here, ten of clubs and ace of hearts, black jack!" Xiao Yao moved his finger to the right.

"Correct!" Sandra said this time.

"Here, the King of Spades and the Three of Hearts!" Xiao Yao's fingers moved another position.

"Correct!" Raj nodded.

Everyone in the card counting team was watching, and everyone could memorize a few cards at will, so this time everyone didn't take the cards to check, but verbally announced Xiao Yao's correctness.

"Here, diamond seven and diamond J!" Xiao Yao's finger moved to his rightmost position.

No one spoke this time, and Sam looked up at Yan Ke.

In terms of positions, Taylor, Sandra, and Raj are all confirmed to be the two cards closest to where they are standing, and Yan Ke is the closest to Xiao Yao's rightmost card pile.

"Don't look at me," Yan Ke spread his hands and smiled, "To show justice, the three of us will not participate in Yang's assessment! I don't believe that none of you can memorize four cards!"

"Okay!" Sam nodded, "Correct!"

After Xiao Yao clicked on the two dealer cards in front of Sam, Sam nodded again to confirm.

After going through the same process in the third round of dealing cards, Sam said to Xiao Yao: "Let's talk about it together this time! If there is something wrong, we will point it out. If you don't believe it, we will open the verification again!"

"Okay!" Xiao Yao followed suit, and reported all ten cards in the original order in one breath.

"OK, it's still all correct!" Sam nodded, "but this is just a very simple first step, now we start testing the second project. There are thirty discarded cards that have been used, please tell me the three How many threes appeared in the ten waste cards!"

"Two!" Xiao Yao stretched out his hand and clicked on the two places on the leftmost and the second from the right in front of him, "Here, three of diamonds, here, three of hearts!"

Now there are 30 discarded cards, which were distributed in three rounds. There was a period of time in between. Even if the card counting team felt good, they were not so sure, so they picked up the cards on the table again to verify.

"The three of diamonds are here, there are no other threes!" Taylor picked up the six cards on the far left in front of Xiao Yao, looked at them, and nodded.

"Here is the three of hearts, and there are no other threes!" Raj picked up the six cards closest to him and looked at them.

"No! No!" Sandra announced after checking the two piles that Xiao Yao hadn't clicked on.

"No!" Sam looked at the six cards in front of him, nodded and smiled, "I am very confident in your memory now, but our test is not over yet, I think we should complete it!"

"Of course!" Xiao Yao smiled and nodded.

Next came the fourth and fifth rounds, and Xiao Yao still answered all of them correctly.

"Now I have two cards left in my hand!" Sam held the last two cards and said to Xiao Yao, "Please tell me the points of these two cards, the time limit is five seconds! Five, four..."

"Heart 2 and Club A!" Xiao Yao said.

"Great!" Sam applauded.

"Thank you." Xiao Yao smiled and asked, "Is it over?"

"Let me ask one!" Sam was about to nod when Taylor interrupted suddenly,

Pointing to the pile of cards on the far left of Xiao Yao, "Can you tell me all the ten cards here now?"

"Ty!" Sandra looked at Taylor with some dissatisfaction and said, "Jan has done a good job, don't make things difficult for others!"

"Don't get me wrong!" Taylor said to Xiao Yao, "When you get the last two cards in Sam's hand right, you have passed our memory test! I just saw that you not only discarded cards in the third round I told you the number of triples, and I also accurately told the positions of the two triples, so I want to give it a try!"

"Understood," Xiao Yao said with a smile, "please give me a few seconds to recall!"

"It seems that you can really?" Taylor asked in surprise.

"Maybe I can do more!" Xiao Yao laughed.

"What do you mean?" All four members of the card counting team were surprised.

"Diamond 2!" Xiao Yao put his hand on the first card on the leftmost pile, and after telling the suit and points, he turned over the cards by himself.

Everyone on the sidelines saw that it was square two.

"Four of plum blossoms!" Xiao Yao said, and then turned over the next one, which was indeed also a four of plum blossoms.

"Six of spades, 9 of diamonds..." Xiao Yaobao flipped through the sheets one by one, and flipped all the way down.

The four non-Huaxia members of the card counting team showed surprised expressions.

"Diamond three!" Xiao Yao turned over the last one, and it was indeed a diamond three.

"Awesome!" All four exclaimed.

"Seven of spades!" Xiao Yao didn't finish, and continued to report a suit and point, and turned over the top card of the second pile from the left in front of him.

"Isn't it?" The seven members of the card counting team showed expressions of disbelief.

"10 of Hearts, Q of Clubs..." Xiao Yao said to turn over the cards one by one, and quickly turned over all the cards in the second pile, and then moved to the third pile.

"Oh my god!" Raj, who rarely spoke, said dumbfounded, "What did I see?"

After turning over the ten cards in the third pile, Xiao Yao moved his finger to the rightmost card pile in front of him, and his mouth was naturally not idle, and then, it was the banker's card in front of Sam. With the faces of the seven people seeing hell, Xiao Yao turned over all fifty cards, and none of the suits and points he repeated in his mouth was wrong.

Including Yan Ke and the three of them, the seven people beside them all looked dumbfounded.

"Xiao Yao, you are such a monster!" Yan Ke said to Xiao Yao in disbelief.

When they were training for the Olympiad national team, Yan Ke and the three already knew that Xiao Yao's memory was very good, but they didn't expect Xiao Yao's memory to be so strong.

"Yan, what did you just say?" Taylor asked Yan Ke. Just now Yan Ke was excited and spoke Chinese, but he didn't understand.

"I said Yang is a monster!" Yan Ke explained in English.

"That's right!" Taylor said, "Jan is indeed a monster!"

"Yang, do you have superpowers?" Raj looked at Xiao Yao and said, "Like those superheroes in comics, who have superpowers because of accidents or genetic modification?"

"Of course not!" Xiao Yao smiled and shook his head and said, "I'm just born with a good memory! If this is a superpower, then this kind of superpower is born! But my memory doesn't seem to exceed the normal range of human beings, so it doesn't count Super powers? I'm a normal person!"

"When we met him back then, his memory was very strong, but it has not reached this level!" Yan Ke said, "Maybe he has also been preparing for the past few years, in order to use card counting to go to the casino and do it purposefully." Did you exercise your memory?"

"That's right!" Xiao Yao nodded with a smile, "Does memorizing music scores, memorizing lyrics, memorizing scripts, memorizing lines, and memorizing scripts count as memory training? It should be counted!"

"Okay!" Taylor calmed down, and said to Xiao Yao, "Yang, we admit that your memory is very good, better than ours, and you must have passed our memory test. But card counting is not just about A good memory is enough, so we have to continue with the next assessment!"

"No problem, what's the next assessment?" Xiao Yao asked.

"Calculation ability," Taylor said, "to be precise, it is mental arithmetic!"

"Simple calculations are definitely fine for me, but I may still lack advanced mathematics knowledge." Xiao Yao said, "So, if it involves advanced mathematics knowledge or formulas, I hope you can explain it to me first. , and then take the test. I am very confident in my learning ability, and the learning process should not take long."

Although Xiao Yao studied advanced mathematics when he was in college in his previous life, he only took two related courses as an undergraduate, and the content he learned must not be comparable to those of their master's students in science and engineering.

"No, it doesn't involve knowledge of advanced mathematics, it's just simple calculations!" Taylor said, "The difficulty lies in the number of calculations and the prescribed time."

"OK, then come on!" Xiao Yao said.

"Let me do it!" Sandra went to sit opposite Xiao Yao, took out her mobile phone, operated it, and placed it on the table between the two.

"Timekeeping?" Xiao Yao glanced at the phone screen, and found that the screen displayed a stopwatch interface, and asked with a smile, "How long is the specified time?"

"The sooner the better!" Sandra said, "I randomly set the questions, and the difficulty of the questions does not vary, so there is no set time. Your answering time is just a reference for us."

"OK!" Xiao Yao spread his hands.

"How much is 3+8+4-5+2+4-1+7+2+6-4+2-6-8+4-2+5?" Sandra asked very fast. After asking, Sandra clicked the stopwatch on the phone screen to start timing.

"21!" Xiao Yao quickly gave the answer.

"Correct, next question!" Sandra clicked the stop button on the stopwatch, and then immediately clicked reset.

"You don't seem to be very concerned about your answering time?" Sandra asked Xiao Yao instead of asking the next question immediately after finishing the operation.

She noticed that Xiao Yao didn't look down at the time display on the phone at all, and didn't ask him how long it took.

"I seem to know why you came to test me in this round of tests." Xiao Yao smiled, and answered some questions that were not relevant.

"Oh?" Sandra looked at Xiao Yao with interest and said, "Why?"

"Because you speak very fast!" Xiao Yao smiled, "So I think this round of tests is not only a test of my mental arithmetic ability, but also a test of my memory and psychological quality. Compared with those, I think The time to answer the question is not important!"

Through the contact just now, Xiao Yao discovered that Sandra is the most outgoing of the four, and also the one who speaks the fastest. And just now Sandra deliberately asked questions with such a fast speaking speed, deliberately trying to create a tense atmosphere for Xiao Yao. Most people don't answer the questions in this situation, whether they can remember the questions will be a problem.

"Well, you found out!" Sandra smiled.

"However, this does not mean that the test is over, you have passed the test." Sandra said seriously, "The test continues! Next question: Suppose there are three boxes in front of you, two of which are empty, and one has a piece of gold in it. The boxes have lids, you can't see inside, don't know which box has gold in it, but I know. Now if you choose box number one, I open box number three to show you, you see box number three is empty, Would you change your choice at this time?"

"I'm going! Isn't this the Monty Hall paradox in the previous life? The three-door problem is just replacing the door with a box, the car with gold, and the goat with nothing." Xiao Yao thought to himself.

"Change!" Without waiting for Sandra to press the stopwatch on the phone, Xiao Yao replied directly.

"Why?" Sandra asked in surprise. Others also showed surprised expressions.

"After changing, the probability of getting gold will be doubled!" Xiao Yao said with a helpless wry smile, "Are you really doing mental arithmetic?"

When Sandra heard the first half of Xiao Yao's sentence, she was both surprised and happy, but when she heard the second half of Xiao Yao's sentence, she felt a little doubtful, and said to Xiao Yao: "Of course it is a test of mental arithmetic! This is what needs to be done. You calculate the profit probability of trading and not trading separately in your mind, although it is a bit complicated, it is indeed a problem that needs to be calculated.”

"Are you kidding me?" Xiao Yao said, "This is obviously Monty..."

When Xiao Yao said this, he suddenly remembered that there seemed to be no Monty Hall in this world, so he changed his words: "This is obviously a question extended from the Bertrand box paradox. Are you sure you are not testing me?" Do you know math?"

Sandra and the others were even more surprised when Xiao Yao mentioned the "Bertrand Box Paradox".

"So you didn't calculate it, but the result obtained through the Bertrand box paradox?" Sandra looked at Xiao Yao and said, "You know the Bertrand box paradox? Why? You said, You are studying at the School of Film and Television, so you don’t study advanced mathematics!"

"Bertrand's box paradox was mentioned in the probability course textbook for undergraduates of science and engineering at Huaxia University." Xiao Yao wrote the reason, "Although I studied in an art school and didn't study mathematics, I'm fine. I will also double the books on this topic when I have time. You know, I made an agreement with Yan and the others a few years ago to go to the casino to play blackjack by counting cards. When I am free, I will read books on probability .”

"Well, it seems that you have really made a lot of preparations!" Sandra said, "But our topic seems to be very different from Bertrand's box paradox. How could you think of using it all of a sudden?" Bertrand's box paradox to answer this question?"

"There is no reason, I just thought of it!" Xiao Yao couldn't make it up anymore, so he could only pretend, "I feel that the two are a problem! Maybe they are also talents?"