題目連結如下:https://msqrt1024.github.io/TOIproblems/潛力組/202211/p1/Cycle (zh_TW).pdf
9 12 0 1 0 4 0 5 1 2 2 3 3 1 3 4 3 6 5 4 6 2 7 6 8 7
0 1 2 3 6 7 8
6 8 0 1 0 4 0 5 1 2 2 3 3 1 4 3 5 4
0 1 2 3 4 5
3 3 2 1 2 0 0 1
-1
5 3 0 1 1 0 2 3
0 1
潛力組202211