josephus | Josephus Permutation - The program returns | Learning library

So I am trying to solve josephus problem using c++

First input is number of people and second is position for killing next person

I am getting run-time error as: "cannot seek vector iterator after end"

code:

Question

This problem takes its name by arguably the most important event in the life of the ancient historian Josephus: according to his tale, he and his 40 soldiers were trapped in a cave by the Romans during a siege.

Refusing to surrender to the enemy, they instead opted for mass suicide, with a twist: they formed a circle and proceeded to kill one man every three, until one last man was left (and that it was supposed to kill himself to end the act).

Well, Josephus and another man were the last two and, as we now know every detail of the story, you may have correctly guessed that they didn't exactly follow through the original idea.

You are now to create a function that returns a Josephus permutation, taking as parameters the initial array/list of items to be permuted as if they were in a circle and counted out every k places until none remained.

Tips and notes: it helps to start counting from 1 up to n, instead of the usual range 0..n-1; k will always be >=1.

For example, with n=7 and k=3 josephus(7,3) should act this way.

I'm trying to write code to solve the josephus problem, for an exercise in the book I'm currently reading.

main.cc :

I'm working on an assignment based on the Josephus problem and circular linked lists. The function below gives an error in Xcode (Control reaches end of non-void function) which I assume means that I need a return statement. However, when I add one, it doesn't accept it. But when I try the code in online compilers it works fine.

I am using a Linked list/ Iterater combo to compute the Josephus problem, and need it to only print if there is only one element left in the list, but how would I use an if statement to check a condition that references to the size of the list rather than the number in the list with "ourList" being of type "LinkedList"? Here is a piece of the code:

I was writing code that calculates the Josephus number. I was just experimenting with the numbers to get the code right. This is the code I wrote: