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确实很简单。。可是WA了好多次。。最开始想复杂了。。最近是不是要突破了呢,总是将题想复杂嘎嘎,后来Yes,No 写成了YES,NO 就直接交上去了,但是还WA,最最最最后原来是ls>lt 写成s>t了。。晕Followed by: Post your reply here: |
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