The signal problem was a classic problem in computer science and signal processing. It described a system with multiple signal sources sending signals at the same time, but the receiver could only receive a limited number of signals. Each signal could only be received once, and the value of the signal would change each time it was received. How to solve the signal problem when writing a mystery novel can help readers better understand the story. Here are some possible solutions: Multiple explanations: In the novel, signal problems can be explained in different ways, such as multiple signal sources, signal superpositions and deductions, etc. This would allow the reader to understand the story better and provide more details for the reasoning section. 2. Time Distortion: In the novel, the signal problem can be solved by time distortion. For example, multiple signal sources could be sent at the same time, but their timestamps at the receiver would be different, resulting in a change in the value of the signal. This method can help the reader understand the signal problem better and provide more details for the inference part. 3. Spatial Distortion: In the novel, the signal problem can be solved by spatial distortion. For example, multiple signal sources could be sent at the same time, but their timestamps at the receiver would be different, resulting in a change in the value of the signal. This method can help the reader understand the signal problem better and provide more details for the inference part. 4. Counterfactual reasoning: In the novel, the signal problem can be solved by counterfactual reasoning. For example, multiple signal sources could be sent at the same time, but their timestamps at the receiver would be different, resulting in a change in the value of the signal. This method can help the reader understand the signal problem better and provide more details for the inference part. It should be noted that the above methods are not absolute. It should be decided according to the story and the reader's ability to understand.