Second Java Internship Test (small company) summary

The most profound of the image is the first question,

What is the result of 34 of the 17-time side-to-6 redundancy?
A.2
B.3
C.4
D.5
See the question I blindfolded,, to calculate it? 17 times or forget it, and have not given the grass manuscript.
So, what do we do? 34 divided by the remainder of 6 is 4, then 30 17 is sure to divide 6, and the remainder will be 4 of the side out, can successfully simplify the problem ,
！！ But, my brain suddenly convulsions,, 4 of 17 times, I unexpectedly brought to 4*17=68, in the subway suddenly think of me, suddenly a little want to jump down the impulse (joking ha: P)
Back to the point , 4 of the 17-time side of 6 to seek redundancy. First 4 divided by 6 equals 0 more than 4. , and then, the result of the 17-time side is the same.

Later, compared to the image of a profound Linux change file permissions, very embarrassing, this does not know, to strengthen learning later. Remember to mask a chmod 777 option.

Algorithm problem
1, handwritten bubble algorithm, should be correct, handwriting is not used, even the optimization of the place are not written, the word is crooked.
2, the dichotomy algorithm, the principle remembers, but a long time did not write, wrote the wrong no Grass manuscript paper, I write again big, fork off there is no place to write, very embarrassed. So I wrote the idea on it.
3, manually enter a URL (specifically what is forgotten) after, to return to the page, what is the process. (This is roughly the case).
4, how to optimize the server response speed?
Awkward, no, optimize the database? Increase server Configuration 233 ... The grader will not kill me.

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Make a little progress every day

Second Java Internship Test (small company) summary