I was rubbish ...... I will only cheat points.
To get the title read through it, feeling T3 ( violence ) is a tree planing + segment tree.
Just learning the tree dig me excited ah. However, the final decision to hand lazy to say.
T1 front yard had a meal yyxjb 60pts test points partition lost dream. (Fh large crowd the way God finished T1 and took on the mentality a little collapse)
Then start yyT2. After I made a long time to stay careful thought and well thought I think we can make a backpack. Bare backpack dp40pts lost ideal. (Fh large crowd God finished T2 and took on the mentality of a little deep-fried)
T3 seems a little difficult? ? ? 20 points $ O (n ^ 2m) $ violence go from ideal to lose then, the chain has been thinking about how to do until the end of the examination.
Desirable Score: 60 + 40 + 20 = 120
Actual Score: 60 + 50 + 20 = 130 rank35 ......
%%% fh God 220 rank7
Article salted fish. . .
After reading problem solution: wocT1 how such water. . wocT2 how such water. . wocT3. . Or will not play.
Or to seriously think positive solution ah. This continues to lose over the QAQ ......