At the beginning, Duan Yun did arouse Guo Haitao's interest in that Olympiad competition.

Because compared with his candidates, Duan Yun seems a little different.

Other candidates are just pursuing to solve a correct answer, but Duan Yun's realm is a cut above others, not only writing the correct answer, but also shortening the steps of solving the problem, and really doing it.

People with fixed and rigid thinking are not suitable for scientific research, especially the cryptography research engaged in by Guo Haitao.

And this is also an important reason why Guo Haitao is optimistic about Duan Yun.

People who can treat a seemingly rigorous Olympiad problem as a game, challenge the limits of difficulty, and expand the idea of solving the problem can be said to be rare, and it can also be said to be a rare mathematical genius!

However, although Duan Yun's intelligence is unusually high, in Guo Haitao's view, if he wants to really engage in cryptography, he still needs a period of long-term systematic study and increased knowledge reserves before he can truly 'enter the industry'.

The last time I met Duan Yun, among the questions given to him by Guo Haitao before leaving, the first dozen or so questions were just ordinary Olympiad math questions, which could only be solved by using the knowledge of advanced mathematics in college.

Guo Haitao actually did this to find out Duan Yun's mathematical skills, after all, Duan Yun did not go to college, if he could really master the knowledge of college mathematics by self-study, it would save Guo Haitao a lot of time and energy to train him in the future.

This is Guo Haitao's real purpose.

As for the last password question, Guo Haitao didn't expect him to solve it at all.

Because the encrypted password he gave Duan Yun was actually encrypted with the military password of the Soviet Union after World War II in the fifties of the last century.

At the end of World War II, the Soviet Union seized a lot of German cipher machines, and finally modified them and used them in their own troops.

However, this cipher was not used for long, and a few years later the Soviet Union developed a new military encryption method to replace the encryption method originally born from the German Engmar cipher, and publicly declassified some translations of this cipher after the end of the Cold War.

Although the former Soviet Union eventually collapsed and declined, the Soviet Union was, after all, a military superpower comparable to the U.S. military at the world's level, so the encryption method that was decrypted half a century later attracted great attention from all over the world, including China.

With the efforts of the team led by Guo Haitao in the early nineties of the last century, it took nearly two months to finally complete the cracking of this password encryption method.

In fact, the main reason why the workload is so large is that the function of computers in that era was still very weak, and the computers purchased by the state with foreign exchange were issued now, and the performance was simply a joke, so there would be such a large amount of manual calculation.

But even today, when home computers are becoming popular, it is still difficult to decipher this kind of cipher born in World War II, and even in Guo Haitao's view, it is impossible to decipher this kind of cipher without more than ten years of experience in cryptography!

Therefore, the purpose of Guo Haitao to give Duan Yun this question last time was to let Duan Yun know that there is a heaven outside the sky, and there is no end to learning, so as to dispel some arrogance in his heart, and at the same time to make Duan Yun interested in this subject.

Seeing that Duan Yun had only sent an email to himself two days later, this immediately aroused Guo Haitao's curiosity, so he quickly clicked on Duan Yun's email.

The first page of the email was all the ordinary math problems that Guo Haitao gave him, Duan Yun solved them quite decently, Guo Haitao glanced at them, and a satisfied smile appeared on his face.

As Guo Haitao expected, Duan Yun's mathematics level has indeed reached the level of college freshmen, and even higher than the level of these freshmen, after all, Guo Haitao's questions this time are all difficult Olympiad questions.

However, when Guo Haitao clicked on the second page, his eyes suddenly froze.

The song "Katyusha" translated by Duan Yun was displayed on the screen!

Guo Haitao slowly leaned back on the swivel chair and stared at the screen for three minutes.

Subsequently, Guo Haitao's face showed ecstasy, shame, and loss, and finally laughed!

Tears instantly soaked Guo Haitao's eyes, which were tears of excitement.

"Lao Guo, are you like this?" After hearing her husband's inexplicable laughter, Zhao Ru, who was busy picking vegetables in the kitchen, hurriedly ran over and pushed the door open.

"I'm fine......" At this time, Guo Haitao took off the reading glasses on the bridge of his nose, wiped them lightly on his clothes a few times, and said to Zhao Ru without looking back: "Wait a while, take out my bottle of Langjiu that has been put for thirty years, and I will drink two cups of ...... at night."

……

The next morning, the sky in Ha Yang was cloudy and there was a light rain.

Unlike the cold and gloomy weather outside, Duan Yun's heart at this moment was full of sunshine and joy.

After a month of screening, "Crazy Diamond" finally went offline, and the final box office reached an astonishing 120 million yuan, and after account sharing and tax deduction, Duan Yun had nearly 40 million more funds on his account!

Coupled with the previous demolition compensation in Heyang, Duan Yun's net worth has now successfully exceeded 100 million!

So much money was a figure that Duan Yun couldn't think of before, and now even if he put the money in the bank, he could live a rich life for a few lifetimes.

But no one is too much money.

Duan Yun knew that there was still a big gap between the money he had in hand and the real rich people in China, and he also wanted to take his career to the next level.

With a large amount of cash on hand, Duan Yun decided to continue to expand the film and television business.

At the same time as getting the first film account, Ning Hao, the company's contracted director, also sent his second script "Crazy Bicycle" to Duan Yun's hands by email.

For this "Crazy Bicycle", Duan Yun is also quite familiar, in his previous life, although the cost of Ning Hao's second-step work increased sharply to 10 million, the final box office also exceeded 100 million, and the producer still made a lot of money!

For such a classic work, Duan Yun's investment must be a sure win, but he has additional ideas.

In fact, in Duan Yun's opinion, the quality of this film made by Ning Hao is really good, but compared with other blockbusters in the early stage of film promotion, the intensity is too small, and it can even be said that it is pitiful, and the main reports are also from the word-of-mouth left by the crazy stone of his first film, otherwise, the box office can definitely go to a new level!

Therefore, Duan Yun plans to enter Beijing this time, and while talking to Ning Hao about the investment in the new film, he will plan the promotion of the film.