When Yuan Chen heard this, he couldn't help but laugh and said, "Aren't there twelve?"

Miss Qin's face flushed slightly, and she said in a low voice: "With the material resources of this palace, we can only find so many homogeneous pearls...... White walkers don't have to measure it themselves, they just need to dictate it. Pen ~ Fun ~ Pavilion www.biquge.info"

Yuan Chen thought for a moment and began to narrate: "The first weighing, divided into two groups, the lower one is group A, numbered one, two, three, and the high one is group B, numbered four, five, six;"

"For the second weighing, take A 1 and B 4 as a group and place them on the left side of the balance, and B5 and B 6 as a group and place them on the right side. There are three scenarios:

Left and right balance, indicating that the four pearls are normal, the abnormal beads are in the first two and third, weigh them for the third time, and the heavier ones are abnormal beads;

The left is low and the right is high, the third time to weigh B 5 B 6, if it is balanced, then A 1 is a heavier abnormal bead; if it is not balanced, then B 5 B 6 in the lighter one is an abnormal bead;

If the left is high and the right is low, it can be directly concluded that B4 is a lighter anomalous bead.

The above, the end of the discussion. ”

Qin Maiden was expressionless, operated according to her words, came down three times, and weighed out Jiayi, and she weighed it separately five times in a row, all of which were Jiayi sinking, so she put the six pearls into the box and gently pushed them over: "The second step is passed, and these six pearls are given to Your Excellency." ”

"Shenshui Palace is really generous!"

Yuan Chen sighed, smiled, and asked, "Dare to ask the third step?"

Miss Qin sat down and said slowly: "Suppose there are 999 pearls, and one of them is abnormally weighted, may I weigh it at least a few times, and I will definitely be able to find it?" ”

Yuan Chen stopped smiling, looked down and thought for a while, then raised his head and asked, "Logarithm?"

Miss Qin said softly: "The inverse of the exponent." ”

Yuan Chen was sure that she was a player, so he asked again: "This third step, Chu Xiangshuai shouldn't be able to answer, right?"

Miss Qin pointed to her pen and ink and said, "You can use the scenery in front of you to compose a poem instead." ”

"It's really human......"

Yuan Chen had to praise, and Miss Qin said, "Please answer." ”

Yuan Chen replied softly: "Every time the balance is weighed, there are three kinds of results, the left is heavy, the right is heavy, and the same weight, and the amount of information given is log_2?3, about 1.58 ratios;

999 pearls have a different weight, each one has two possibilities, that is, 999 times 2, a total of 1998 situations, so the amount of information needed to judge the result is log_2?1998, about 10.96 ratio;

The two are divided to about 6.94 and rounded up to 7 times. ”

Miss Qin bowed slightly, and said in the same soft voice: "All three steps have passed, congratulations to Your Excellency for passing the second level." ”

Yuan Chen couldn't help but ask, "Who came up with this level?"

The Qin girl's eyes suddenly shot out of admiration, and said, "It's our third senior sister, step through the clouds!"

"Is that the disciple of the Shenshui Palace who was rumored to have designed the Shuangshui Tower......

Yuan Chen thought about it, and Miss Qin asked, "Are you going to the third level, or are you waiting for the others?"

Yuan Chen looked around the lake, saw many faint houses, among the flowers, under the trees, by the waterfall, next to the flying stones, from time to time there are wind chimes tinkling, the eaves haunt, occasionally saw a girl tiptoeing and looking, and soon did not go, so he said: "This is the Shenshui Palace, where is the third pass?"

Miss Qin nodded and said, "This is where our disciples live, and the third pass is on a small island in the middle of the lake. ”

Yuan Chen looked at the center of the lake, in the direction of the North Star, there was a small island, the forest and stones were moist, the water and plants were abundant, and a small deer suddenly appeared, looked up with curious eyes, and then kicked his hooves, and ran away.

"Let's go to the third level!"

"Please come with me. ”

Qin Maiden went out of the pavilion first, got on the small pontoon bridge, and arrived on the island, the breeze was slow, and she smelled a faint fragrance of grass and trees, mixed in the sunset afterglow of late autumn, almost dyed with a slight twilight, adding a few points of sadness, but revealing a gentle taste, not to hurt people's hearts, the original dust stood quietly, felt for a moment, when they opened their eyes, Wei Gongyi and Tu Tu also arrived, followed by that Yang Shaoxia, dejected.

As soon as he saw that Yuan Chen was already on the island, Tu Tu immediately shouted: "Wei Wei, you are always a good person! Look at this guy who came so early, much faster than us!"

Yuan Chen smiled: "Brother Wei, what's wrong?"

Wei Gong looked left and right, and said in a low voice: "This Brother Yang has fallen in love with a native disciple of Shenshui Palace, and he wants to return to the truth, and he wants to pass the three levels and make a request to the jellyfish......

Yuan Chen has also heard that in the task of returning the original disciples of such a sect as Shenshui Palace, unless the person concerned betrays the door, there must be a step to ask for the consent of the master, and many resentful couples are stuck on this.

"This Brother Yang failed to pass the second level?" Yuan Chen asked in a low voice.

Wei Gongyi shook his head and said: "He couldn't answer the third step, and the poem was not very good, so I didn't have any requirements, so I petitioned the jellyfish for him." ”

Yuan Chen praised: "Brother Wei's adult beauty really has the style of a gentleman...... It's just that the Shenshui disciple is also in love with Yang Shaoxia?"

Wei Gong was stunned one by one, turned to look at Yang Shaoxia, Yang Shaoxia said firmly: "Fangfang also loves me!"

Yuan Chen said: "With the help of Gongzi Wei, congratulations to Brother Yang for holding the beauty." ”

Tu Tu pouted next to him: "Don't be too happy!

Miss Qin stepped aside, discussing in a low voice with the three of her peers, Chu Liuxiang also arrived, and when she saw the four of them, she shook her head and smiled: "The third step just now, how did the four answer?"

Yang Shaoxia naturally had nothing to say, and Tu Tu took the lead and said: "Answer directly! What about Chu Xiangshuai?"

Chu Liuxiang smiled bitterly: "I'm ashamed, I'm ashamed, I really can't answer, so I had to make a poem randomly, but fortunately I can still see it." Dare to ask you, how to solve the third step of nine hundred and ninety-nine pearls?"

Tu Tu shook his head, defeated, and Yuan Chen didn't want to talk about it, because even his simplest method had too much to talk about, first logarithms, and then information theory......

Just thinking about it, he saw Wei Gongyi take a few steps forward and said, "Can Xiang Shuai know the square and the cube?"

Chu Liuxiang said: "I have heard of it a little. ”

Wei Gong folded a branch and drew on the ground: "For example, multiply nine twos to get five hundred and twelve, we call it the ninth power of two, and conversely, how many two are multiplied to get five hundred and twelve, we call this kind of operation logarithmic ......"

The two of them squatted down as they spoke, Yang Shaoxia also leaned over, listening attentively, Yuan Chen looked at them in surprise and asked Tu Tu: "Brother Wei has always been like this?"

Tu Tu seemed to glare at him under the veil, and said, "Wei Wei is too good!"

Yuan Chen was silent, and then sighed, at this moment, the five Qin girls came over, and they didn't seem to discuss the results, and said, "The five of you will go to the Feiyu Pavilion first, let's see what Senior Sister Bu says!"

Tu Tu said sweetly: "Sisters, wait for Wei Wei to finish, will it be done?"

The five girls looked at each other and said, "Please Gongzi Wei as soon as possible." ”

“...... By information, we know ...... The balance is weighed once, there are three results, and the amount of information given is...... In the end, the two numbers are divided by the whole number, it is seven times, as for the specific operation, it is a bit cumbersome to say, the hour is not early, and please think about it yourself. ”

After listening to this, Chu Liuxiang was full of admiration: "Brother Wei is a scholar, and Chu admires it so much." ”

Emiya threw away the branches, got up and said humbly: "I really don't dare to be, I just stood on the shoulders of giants." ”