AB volume, 15 people.
Lrefrain rank#1 179
skyh rank#2 122
1 16 108 54 is 42 is although still very good, but there are signs of improvement.
Unwinding moderation, T1 is a (false) expectation, feeling perhaps can be done.
T2 is a palindrome? Palindrome automatic machine did not play the title, will die of it. . . Can not do
T3 title name down looking, for no apparent hatred can be simple tree p, other direct reduction? Not as if to inclusion and exclusion, can not do not do.
And then try to push the formulas T1, and then introduced to the answer must be an integer that make me?
But pushed several times, how to push are integers, feeling quite right but they can not afford A feeling.
Anyway anyway, is to start playing.
Tree doubled seeking LCA, and then multiply it by the way the trees intervals and seek it.
Indeed, like a fool is not thought of very direct and hasty trees prefix like, ah! ! !
Apply their knowledge, and seek the prefix tree and chain! To utilize knowledge, learn to transfer knowledge!
However, theoretically at most big tree multiplier constant chanting, no problem.
WA0 the result: Let me deal with solving the original array after doubling the array. . . Only one sample, can be over.
Diversified sample, must be hand prints! Even if do not have time to shoot and do not finish the code on the bin.
Attention to detail, not free exchange of code sequence, the clarity will not hang!
Then I do not know. Anyway, I feel introduced to the formula is an integer not normal, holding fried faith will go so when the points on the way.
Moderately confident. Do not give up the title.
T2 then because I thought what a palindrome is not thought to automatic machine, called the violence left.
However, the fact is less than ah! ! ! Although not only water but that does not mean violence.
Commonly used conversion idea: reverse, prefix and, differential, half.
A classical palindrome routine is upside down, and then question what prefixes and suffixes of this problem would have been solved.
Even never learned knowledge and do not directly give up, try method will try to score points.
Then T3, then on first with a bucket to violence to win, then there is no then the.
T3 did not change overnight. Positive Solutions for too immortal.
In fact, the exam was okay, T1 slightly changed to A, and they just need to remind ourselves again: attention to detail, emphasis on well-organized.
Anyway, this game's points difference is not too large, I feel there may be mixed with the first room.
So whether it is the accumulation of psychological pressure is released, the change to brush the question title, the title of group B also takes all.
Then the evening took the test a second time.