C++ easy to understand solution


  • 0
    C
    class Solution {
    public:
        void rotate(vector<vector<int>>& matrix) {
            int num = matrix.size()/2;
            int b = matrix.size();
            for (int i = 0; i< num; i++){
                for (int j = i; j<(b-i-1); j++){
                    swap(matrix[i][j], matrix[j][b-i-1]);
                    swap(matrix[i][j], matrix[b-i-1][b-j-1]);
                    swap(matrix[i][j], matrix[b-j-1][i]);
                }
            }
        }
    };

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