警示后人，如果WA 75Pts

P3081 [USACO13MAR] Hill Walk G

ReTF @ 2022-12-13 11:39:19

WA 75Pts on #4 #5 #12

Hack:

2
1 2 2 1
1 0 2 0
1

可能是平衡树忘了删空

|