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List S consists of n numbers,where n>1,and the range of the numbers in S is r.List T consists of n number and is formed by raising each number in S to the third power.
The range of the numbers in T
r³
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当前版本由 去没人的岛 更新于2024-04-08 16:26:19 感谢由 去没人的岛 对此题目的解答所做出的贡献。
list S有n个数，极差是r，list T包含的是S当中的n个数字每个数的三次方数，假设list S当中最大的数是x，最小的数是y,极差就是r=x-y,r^3=(x-y)^3=(x-y)(x^2-2xy+y
^2)，此时list T当中最大的数是x^3，最小的数是y^3，极差就是x^3-y^3=(x-y)(x^2+xy+y^2)，QA-QB=(x-y)*3xy，其中x-y>0，xy的符号不确定，因此无法比较大小。
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