# [2582\. Pass the Pillow](https://leetcode.com/problems/pass-the-pillow/) :::spoiler Solution ```cpp= class Solution { public: int passThePillow(int n, int time) { int rounds = time / (n - 1); int steps = time % (n - 1); if (rounds % 2 == 0) return steps + 1; return n - steps; } }; ``` - 時間複雜度:$O(1)$ - 空間複雜度:$O(1)$ :::