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I use java httpURLConnection class,but the server informed me that "no time start",I don't know which place I was wrong....so..so..so..so I Ctrl + c and v,just 0.3s left- -

why does ((enc2 & 15) << 4) works ,but (enc2 << 4) not??

My birthday is at the point of 25,766,730 index... I export a pi file about 1.28G ...

It's a night and 3 hours...The story of the answer is so nice.Deserve it

a.reverse doesn't work,it is just a joke.
So the array after a.reverse is still the original array.
You are cheated.
If you wanna pass it ,just add "alert(v);"