It is hard to believe this is a difficult problem to solve. The proof looks quite intuitive if attempting to solve this problem again with an abstractive view and quantum perspective.
After all, it’s 21st century and all the difficult problems in number theory, look easy in group theory, and Grand Unified Theory a.k.a. Everything Theory.
很难相信这曾经是一个世界难题。不过像许多世界著名的谜语一样。当谜底公布以后，谜语都显得不言自明。∞维思维的量子计算，是将来的人类必备的计算方法。