Wrong test case (# 54)
In the description, it says from_i < toi_i. However, in the last test case, # 54, [1,2] actually means [2,1].\nscript\n4 \n[[0,2],[0,3],[1,2]] \n[false,true,fal
In the description, it says `from_i < toi_i`. However, in the last test case, # 54, `[1,2]` actually means `[2,1]`.\n```script\n4 \n[[0,2],[0,3],[1,2]] \n[false,true,false,false]\n```
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