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按表法的数字个数来统计，长度多不过5000细想想如果按表法的数字个数来统计，如 15有1个的15，2个的7 8，3 个的 4 5 6，5个的 1 2 3 4 5 明显的每个长度答案只有唯一一个，数据量是一千万，最多长度不会超过5000 其中再去掉不必要的枚举即可 Followed by: Post your reply here: |
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