Chapter 1840: Absolutely talented

  The grooves on these stone pillars used to inlay the star fern thorn essence, all add up to several thousand.
  Theoretically, there are many possibilities for inlaying Star Fern thorn essence in different grooves. This number will be very large, even tending to infinity-relative to the number that a person can deduce in a limited time.
   Even if Xia Ruofei’s mental power is doubled several times, it is impossible to turn his brain into a supercomputer, and even a supercomputer, it is impossible to complete such a huge amount of calculation in such a short time.
   So, Xia Ruofei gave up the exhaustive method to calculate the optimal combination at the beginning.
  He is based on his own understanding of the battle path, the understanding of the stone pillar formation, and the understanding of these formation patterns. After combining these factors, he can actually eliminate most of the combinations.
  On this basis, he then substituted the star fern thorn essence into the analysis, and the amount of calculation was naturally much less.
  But this is also relative. In fact, in such a short period of time, he has to calculate so much data that he himself has no absolute certainty that he can find the optimal solution.
  Xia Ruofei stood motionless in the stone pillar formation, but in fact his brain had been running fast, deducing various possibilities directly in his mind.
   Such a huge and complex formation involves all aspects of formation knowledge, and the formation knowledge learned by Xia Ruofei seems to be a little stretched.
  He feels a little strenuous, but every time he deduces, his understanding of the battle can be improved.
  As time goes by, Xia Ruofei's thinking has become clearer.
  He began to draw with his hands, the expression on his face also changed.
  The formation patterns simulated by mental power, if they are in substance, flowed out of Xia Ruofei's fingertips, and after staying in the air for a second or two, they slowly dissipated.
  Ling Qingxue saw Xia Ruofei's movements, but knew that he was very engaged, but did not understand what the lines drawn by the fingers meant.
In the majestic hall of the hidden space full of purple aura, the old man in the cyan Dao robe showed a surprised look—Ling Qingxue could not understand the meaning of the lines drawn by Xia Ruofei, but this blue Dao robe The elder only has to glance at it to fully understand.
  The admiration on the face of the old man in the blue robes became more and more intense, he smiled and said to himself: "Unexpectedly...this little guy's savvy in the formation is much higher than I thought!"
  ……
  Xia Ruofei is almost in a state of total selflessness at this time. After comparing countless combinations in his mind, he finally selected three combinations, which should be the three most optimized combinations.
  But Xia Ruofei was not quite clear for a moment.
Although it is stated in the mission statement that as long as the rating is good, it can be regarded as a pass, and Xia Ruofei is confident that any of these three combinations can reach a good standard, but he has always pursued perfection. Since he has the opportunity to get better High ratings, so why should we make do?
  Moreover, there is still about half an hour left for the task, so he can do some more analysis, so he is not in a hurry.
  It’s just that the three combinations he picked out at the end are really equal. He deduced it many times in his mind, but still feels that there is no obvious difference, and the effect should be similar.
  At this time, most people may just pick one of them and make sure that the task is completed first.
  But Xia Ruofei seemed to be stuck in a difficult choice. He knew very well that the three combinations must not have the same effect, and there must be the best combination.
  Xia Ruofei was in a dilemma.
And the time was still passing by one minute and one second, Ling Qingxue couldn't help but secretly anxious, seeing that the task time was approaching, but Xia Ruofei seemed to be making no progress, but she did not dare to disturb Xia Ruofei, so she could only stand aside and worry. Her fingers squeezed her clothes unconsciously, and even the knuckles turned white, she didn't even notice it.
  Xia Ruofei put his hand into his pants pocket and touched a star fern thorn essence.
  At this moment, it seemed that a flash of lightning struck his mind, making him feel excited.
Immediately afterwards, a steady stream of various ideas emerged-he suddenly realized that he had also received a Star Fern thorn essence on his way, that is to say, what he could use was actually not ten. There are eleven star fern thorn essences.
  One more star fern thorn essence, there will be many more possibilities.
  Xia Ruofei has been studying this stone column array for several hours, and he knows all the grooves inlaid with star fern thorn essence.
  So, when he realized that there was one more Star Fern thorn essence, he naturally thought of many possibilities.
  There are several combinations that he eliminated. If you add another Star Fern thorn essence, the effect will be very different.
  In this way, Xia Ruofei's brain was swiftly moving, once again screening these possible combinations.
  Of course, the speed is much faster this time, because most of the combinations that are eliminated, even if you add a star fern thorn essence, the effect is not satisfactory, and some are even worse than not adding it.
  So, Xia Ruofei quickly got five combinations, including the three previously selected.
  Xia Ruofei conducted a comprehensive analysis of these five combinations under the premise of placing eleven star fern thorn essences.
  He sometimes frowned slightly, sometimes smiled, and sometimes showed a puzzled expression.
  When the countdown in the vision of the perception mirror reached the last five minutes, Xia Ruofei finally got the best answer he thought.
  Time has not allowed him to conduct more verifications, and these plans have actually been deduced repeatedly in Xia Ruofei's mind.
  So, he stopped doing any unnecessary calculations and drills, and straightened up, jumping on the Qushuang Flying Sword that was suspended on the side.
  Ling Qingxue was overjoyed when he saw this scene, and couldn't help but the Great Sage asked: "Ruofei, you already have the answer, don't you?"
  Xia Ruofei smiled back at Ling Qingxue and said, "Yes, it should be a better solution, don't worry!"
  After finishing speaking, Xia Ruofei pinched the sword art, Qu Shuang Feijian immediately drew an arc and flew towards a stone pillar in the distance.
  Xia Ruofei took out a star fern thorn essence without hesitation and embedded it in a groove on the side of the stone pillar.