C349 Either He's Crazy or He's Crazy

But now, Qin Luo used the sieve method again to try to solve the four-colored conjecture. Could he succeed?

But in the next second, Ye Kang shook his head. He wanted to use the sieve method to prove the four-colored conjecture?

Either he was crazy or crazy.

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There was no lack of smart people in the aristocratic families, and the Yanjing University