Experience:
Sb push formulas T1 extremely wrong, wrong time check, but mold and then discard the sample. The examination room T1A likely can not afford, but still either lose mentality.
The sample is likely to be wrong explanation, after confirming enough, it must be brave enough to follow their own
T2 optimized time cautious, think carefully! !
T3 violence and less than 20 minutes, to hurry to do in front of the problem, to ensure that T3 can get points to get,
Recently my heart was chaotic, attitude adjustment as soon as possible, to have an exam every answer to their best level, must not put all their hopes on the T1, the other will not have enough points to get to be so poor, attention to detail
answer:
T1: a relatively simple push equation, which did not pay attention to the contribution of a point on the horizontal and vertical lines to consider
T2 [dimensional prefix and]
sun [i] [j] to maintain the upper left a negative sign if the number of this interval to enumerate the number of bits on the line 0 Total
Consider using binary optimization Note: To answer the outside-half, in which the enumeration i, j so found not directly return, can be much faster
There is every answer may be the same, it recorded a maximum in which to see the current increase will not affect the point, does not affect the direct successor
T3 Liukengdaitian