Too many calculations! ! ! ! ! ! ! ! ! ! !

I feel so weird after reading the answer! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

Too much calculation! ! !

20 12 is too simple, 20 13 is somewhat novel, and 20 14 is novel+weird+difficult to calculate.

Choosing to fill in the blanks is not smooth! !

2065 438+02 3 hours, 2065 438+04 3 hours. Obviously, time is tight! ! ! ! ! ! ! ! ! !

No matter how hard it is, experts say it's average, and experts also say it's average. Experts' words are not credible. The problem is that he wrote it, of course he will say it's well written! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

20 14 feels that the problem is too strange.