3*3方陣旋轉算法

void TestRe() { int a[3][3] = { {1, 2, 3}, {4, 5, 6}, {7, 8, 9} }; int b[3][3];        //旋轉 for (int i = 0; i <= 2; ++i) { for (int j = 0; j <= 2; ++j) { b[j][2-i]= a[i][j]; } }        //輸出旋轉後的方陣 for

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