The worst exam in life is HNOI2018
Day1
T1
I thought about the violence of 30 points, and then I hit it. Later, I thought about the method of 70 points, but I didn't realize that it could pass 70 points, but it finally exploded to 0, uh uh
T2
Just hit a greedy, after the sample, I thought 40get, the last 0 points are rough...
T3
Scrambled a 30 for Violence, and then it was the only score Day1 got...
Day2
T1
It seems that n^2 violence can be optimized, it seems to have 60 points, then it hits, and then it becomes 20 points
T2
Randomly hit a 40-point violence, the result exploded, 0 points
T3
20 points of violence, take it away