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1012的弱化版由于先把1cut了，目标城市2就变成了1，可以推出下一个被cut的城市的编号next，如果next==1且被cut的城市数小于n-1，则枚举的m不合要求，每次cut一个城市后，总数量减1 Followed by: Post your reply here: |
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