leetcode:Rotate Image菜鸟解法
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这题想了很久,实在是找不到既要在原位,而且又很快速的方法,如果是matlab就好了...于是采用了最笨的一次把可能被影响到的四个点都搞定的方法,代码见下面
class Solution {public: void rotate(vector<vector<int> > &matrix) { int n = matrix.size(); int temp; for(int i = 0;i < n/2;i++){ for(int j =i;j < n-1-i;j++){ temp = matrix[i][j]; matrix[i][j] = matrix[n-1-j][i]; matrix[n-1-j][i] = matrix[n-1-i][n-1-j]; matrix[n-1-i][n-1-j] = matrix[j][n-1-i]; matrix[j][n-1-i] = temp; } } }};
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