There is a circular list of non-zero integers called nums. Each number in the list tells you how many steps to move forward or backward from your current position:
If nums[i] is positive, move nums[i] steps forward.
If nums[i] is negative, move nums[i] steps backward.
As the list is circular:
Moving forward from the last element takes you back to the first element.
Moving backward from the first element takes you to the last element.
A cycle in this list means:
You keep moving according to the numbers, and you end up repeating a sequence of indexes.
All numbers in the cycle have the same sign (either all positive or all negative).
The cycle length is greater than 1 (it involves at least two indexes).
Return true if such a cycle exists in the list or false otherwise.
Constraints:
nums.length ≤103nums[i] ≤There is a circular list of non-zero integers called nums. Each number in the list tells you how many steps to move forward or backward from your current position:
If nums[i] is positive, move nums[i] steps forward.
If nums[i] is negative, move nums[i] steps backward.
As the list is circular:
Moving forward from the last element takes you back to the first element.
Moving backward from the first element takes you to the last element.
A cycle in this list means:
You keep moving according to the numbers, and you end up repeating a sequence of indexes.
All numbers in the cycle have the same sign (either all positive or all negative).
The cycle length is greater than 1 (it involves at least two indexes).
Return true if such a cycle exists in the list or false otherwise.
Constraints:
nums.length ≤103nums[i] ≤