3248. 矩阵中的蛇

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题目链接：3248. 矩阵中的蛇

代码如下：

class Solution 
{
public:int finalPositionOfSnake(int n, vector<string>& commands){int i = 0, j = 0;for (string& command : commands){if (command == "LEFT") { j--; }else if (command == "RIGHT") { j++; }else if (command == "UP") { i--; }else { i++; }}return i * n + j;}
};