Easy 292题 Nim Game

问题：

You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 stones. The one who removes the last stone will be the winner. You will take the first turn to remove the stones.

Both of you are very clever and have optimal strategies for the game. Write a function to determine whether you can win the game given the number of stones in the heap.

For example, if there are 4 stones in the heap, then you will never win the game: no matter 1, 2, or 3 stones you remove, the last stone will always be removed by your friend.

这个挺简单的~也给了提示，就看是不是4的倍数~但是自己写的也不够简洁。。。

class Solution {public:    bool canWinNim(int n) {        //好多递归思路的题？？        //就看是不是4的倍数  /*        bool result;        if (n%4==0)            result=false;        else            result=true;        return result;  */        return n % 4 != 0;    }};