Soviet Godfather

The flight from Leningrad to Washington landed slowly at Baltimore Washington International Airport. The staff of the Organizing Committee of the 22nd International Mathematical Olympiad Science Competition had already arranged a bus for the Moscow delegation to transport everyone in the darkness. Pick up from the airport to the hotel. Grigory and Sergey were playing poker almost all the way, and when they got off the plane, they were already talking friends, at least Sergey thought so.

It was late at night after arriving at the hotel, and the room had already been allocated. After taking a bath, Serezha leaned on the bed in a bathrobe and watched TV. At this moment, there was a knock on the door, and Serezha hurriedly opened the door to check. It was discovered that it was Grigory. Sergei was a little strange, so he asked, "Is there anything going on at this late hour?"

　　 "I have come up with a way to increase the winning rate of blackjack, don't you know if you dare to be interested?" Grigory said with excitement while standing outside the door with his luggage.

　　 In fact, Xie Liao Sha is more interested in sleeping now, but unfortunately it is not the style of Xie Liao Sha to refuse a friend who just met. Anyway, his room is a double room and there is an empty bed. It was not a problem for Grigory to live in, so he shook his head and gave a way to Grigory to come in.

Before Grigory could stand, Sergei sat on his shoulders and let him sit on the bed, saying in advance: "Go to bed first, but we have to play tomorrow!" I thought this guy would object, who knows him Actually agreed. Sergey lay on his bed, turned off the TV and the lights, and soon fell into a state of half asleep and half awake.

　　 "Sergey Sha, do you say that there will be a bonus if you win this game?" Grigory suddenly asked him, once again pulling Sergey back from the confusion before going to bed.

　　 "What's wrong, are you short of money?" Xie Liaosha asked.

"I want to buy a violin for my sister, and then bring a sweater for my mother. By the way, I have to buy a better calculator for my father." Grigory counted the gifts he brought to the family one by one. , Only forgot his own.

　　 "It doesn't matter, I can lend it to you, and then return it to me when you have the money!" Xie Liao Sha replied casually.

　　 "In fact, my blackjack card counting method is very simple, just need..."

　　 "Snoring!~~Snoring!"

　　 Grigory was about to continue, but there was already a sound of sleeping snoring from Sereosha, and Grigory could only give up.

The next morning, Grigory has been urging Sergei with his eyes since he got up the next morning, saying that women need to do the most things in the morning. In fact, there are also many men. Starting from Sergey leaving the bed, he washes up. Grigory has been waiting for him anxiously during all the process of going to the hotel restaurant to have breakfast. It wasn't until the two returned from the restaurant that Sergey was patient and listened to Grigory's explanation of his theory.

"My method is to record 2-7 as +1, 8-9 as 0, 10, J, Q, K, and A as -1. After adding and subtracting, we can infer that the unused cards will be biased towards that. One side. The counted sum is divided by the number of remaining cards in the shoe, and the result is what I call the true number. By referring to the true number to adjust the bets and decisions, we can achieve the effect of weakening the banker’s advantage." Rigori said confidently.

　　 "It's going to be the game in the afternoon, don't you need to prepare and let me play blackjack with you instead?" Xie Liaosha asked with some worry. This visit was originally the kindness that Leningrad University released to Selesha. Originally, there was no specific work assigned to Selesha. In fact, it can be regarded as a publicly funded tour. Sergei Sha did not want to affect the performance of the Soviet delegation because of his relationship.

　　 "It's okay, try it out for me, I want to try whether my theory works!" Grigory urged with a look of excitement. So Sergei played blackjack with Grigory in the room to verify Grigory's theory in actual combat. This is a boring thing, but Grigory played happily. For the sake of fairness, Gregory allowed Sergei to record the cards that had appeared. Because Grigory's memory is too strong, it is simply a cheat device.

"It seems that this method is not very useful, it can only provide a 3% success rate." The two have been verifying hundreds of games, and Grigory made some small changes to his method, and finally became discouraged. Said.

　　 "But I almost never beat you on the plane yesterday?" Sergey encouraged Grigory. Just after saying this, there was a knock on the door outside. The leader shouted at the door: "Sergey Sha, we should go!"

"Oops!" Sergey played with Grigory for too long, and now I can't help thinking of patterns like J, Q, K, A, and the brain is extremely exhausted, it’s almost like a fight. The feeling of finishing all night mahjong. He estimated that Grigory must have a muddle in his mind now, how can this game be! You know, although the International Mathematical Olympiad is an event for middle school students, it is a contest for mathematics geniuses from all over the world~www.wuxiaspot.com~ and this competition is held in the United States. In the competition, the Soviet players were highly expected by the Headquarters, which created a lot of pressure invisibly.

"Are you okay now? Hurry up and wash your face to clear up!" Xie Liaosha couldn't help but blame himself. He didn't help much at first. Now it's good. I played with the main players at 21 o'clock for most of the day. The leader knew that he had to be killed.

"It's okay, let's come back and play!" Grigory pushed open the door and walked out with an indifferent expression. When he came outside, everyone was already on the bus, and only the two of them were left. He boarded the car with an apologetic expression, found a seat and sat down, and the car started quickly.

The venue of the 22nd International Olympic Mathematical Olympiad is located in a spacious gymnasium on the campus of the University of Washington. It is said to be a competition, but in fact it is more like an exam. The contestants will be arranged in designated seats for the test. The test paper consists of 6 questions. Composition, 7 points per question, full score 42 points. Each participant must complete all questions within 4-5 hours. In this competition, in order to take care of the Russian team from afar, the game time was changed to the afternoon. The contest lasts for two days. Today is the first preliminary contest. Only the teams that pass the preliminary contest can be as quiet as tomorrow's semi-finals.

　　 After entering the field, Grigory separated from Selesha. Selesha sat in the auditorium. Next to him was the deputy leader of the delegation, a professor of mathematics at Leningrad University. The audience is full of mathematics professors from various universities in the United States. If there are outstanding contestants in the competition, these mathematics masters are likely to be attracted to them. Sergei couldn't help but squeeze a sweat for Grigory. If he delayed Grigory's future because of himself, then he would be really sinful.