2582. Pass the Pillow

class Solution {
public:
    int passThePillow(int n, int time) 
    {
        if(n>time)  return time+1;
        if(n==time) return n-1;

        int a = time%(n-1);
        int r = time/(n-1);

        if(r%2==0)  return a+1;
        else    return n-a;
        
    }
};