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-rw-r--r--other/rotate_image.cpp18
1 files changed, 18 insertions, 0 deletions
diff --git a/other/rotate_image.cpp b/other/rotate_image.cpp
new file mode 100644
index 0000000..10d0638
--- /dev/null
+++ b/other/rotate_image.cpp
@@ -0,0 +1,18 @@
+#include "leetcode.h"
+
+class Solution {
+public:
+ void rotate(vector<vector<int>> &matrix) {
+ int n = matrix.size(), depth = n / 2;
+ for (int i = 0; i < depth; i++) {
+ int len = n - 2 * i - 1, opp = n - 1 - i;
+ for (int j = 0; j < len; j++) {
+ int tmp = matrix[i][i + j];
+ matrix[i][i + j] = matrix[opp - j][i];
+ matrix[opp - j][i] = matrix[opp][opp - j];
+ matrix[opp][opp - j] = matrix[i + j][opp];
+ matrix[i + j][opp] = tmp;
+ }
+ }
+ }
+};