***Problem Decription*** **Recently,I have been reading the book that called 《Schaum_s Outline of Mathematica (2nd Edition)》,I encounted the problem:** Flavius Joseph was a Jewish historian of the first century. He wrote about a group of ten Jews in a cave who, rather than surrender to the Romans, chose to commit suicide, one by one. They formed a circle and every other one was killed. Who was the lone survivor? **The author's solution:** list = Range[10]; While[Length[list] > 1, list = Rest[RotateLeft[list]]]; list > {5} However,I know it is not efficient to use the procedure method such as [tag:Do],[Tag:While],etc.So I want use the command like **NestWhile**,**Nest**,**Fixedpoint** to solve it. **My solutions:** Method 1: list=Range@10 NestList[Rest@RotateLeft[#] &, list, 9] > {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, {3, 4, 5, 6, 7, 8, 9, 10, 1}, {5, 6, 7, 8, 9, 10, 1, 3}, {7, 8, 9, 10, 1, 3, 5}, {9, 10, 1, 3, 5, 7}, {1, 3, 5, 7, 9}, {5, 7, 9, 1}, {9, 1, 5}, {5, 9}, {5}} Furthermore,this method has a flaw that I must give the the number of iterations. Method 2: FixedPoint[If[Length@# != 1 &, Rest@RotateLeft[#] &], list]