Suppose in an infinitely long line, the hare is standing in position 0.
From that place, it can jump either in the +ve direction or in the -ve [but not both].
One condition is that, in i-th jump, it can move i step. Meaning -
0 1 [1st step >> so 0+1] 3 [2nd step >> so 1+2] 6 10
Given a position x, determine whether the hare will be in that position or not.
For example,
if x=15 then true if x=14 then false.
Similar problem https://www.mathworks.com/matlabcentral/cody/problems/45347-cat-s-paw-01
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why 14 is false?
'-1-2+3-4+5+6+7'?
if it starts going in the forward direction, it'll always move in that way.
The movement will be unidirectional