加和相等时选字典序最大的

这道题使用背包做吗？

> 先选长的，长度相同就从第一个元素比较下来，遇到第一个较大元素时选择那个方案 这个不叫字典序... 我还特地试了下字典序大的... Lexicographical comparison is a operation with the following properties: + Two ranges are compared element by element. + The first mismatching element defines which range is lexicographically less or greater than the other. + If one range is a prefix of another, the shorter range is lexicographically less than the other. + If two ranges have equivalent elements and are of the same length, then the ranges are lexicographically equal. + An empty range is lexicographically less than any non-empty range. + Two empty ranges are lexicographically equal. 还有如果数组是和我一样倒着存的...注意一下

12楼，正确的字典序，应该是比较前缀min(n1,n2)长度的位数，中间发现不同则确定大小，如果相同前缀则看位数确定大小，是这样吧？

是的

感谢8楼和9楼，这组数据我对不上，改下就AC了。我是按字典序最小做的。

大佬输出几行啊，PE到哭了