✨ [48] Rotate Image

Author: enkr1

48/my_solution.js

@@ -0,0 +1,33 @@
+/**
+ * @param {number[][]} matrix
+ * @return {void} Do not return anything, modify matrix in-place instead.
+ */
+const rotate = (matrix) => {
+  let maxWidth = matrix[0].length;
+  for (let i = matrix.length - 1; i >= 0; i--) {
+    // console.log(i)
+    // console.log(matrix[i])
+    for (let j = 0; j < maxWidth; j++) {
+      // console.log(matrix[j][maxWidth + (maxWidth - i)])
+      // matrix[j][maxWidth + (maxWidth - i)].push(matrix[i][j]);
+      matrix[j].splice(maxWidth + (maxWidth - i), 0, (matrix[i][j]));
+      // matrix[j].splice(maxWidth + (maxWidth - i), 0,  (matrix[i][j]));
+    }
+
+    if (i === 0) {
+      console.log("maxWidth")
+      console.log(maxWidth)
+      for (let k = 0; k < maxWidth; k++) {
+        console.log(matrix)
+        matrix[k].splice(0, maxWidth);
+        // matrix[j].splice(maxWidth + (maxWidth - i), 0,  (matrix[i][j]));
+      }
+    }
+  }
+
+  console.log("Result")
+  console.log(matrix)
+};
+
+// rotate([[1, 2, 3], [4, 5, 6], [7, 8, 9]]);
+rotate([[5, 1, 9, 11], [2, 4, 8, 10], [13, 3, 6, 7], [15, 14, 12, 16]]);

48/solution.js

@@ -0,0 +1,18 @@
+/**
+ * @param {number[][]} matrix
+ * @return {void} Do not return anything, modify matrix in-place instead.
+ */
+const rotate = (matrix) => {
+  let maxWidth = matrix[0].length;
+  for (let i = matrix.length - 1; i >= 0; i--) {
+    for (let j = 0; j < maxWidth; j++) {
+      matrix[j].splice(maxWidth + (maxWidth - i), 0, (matrix[i][j]));
+    }
+
+    if (i === 0) {
+      for (let k = 0; k < maxWidth; k++) {
+        matrix[k].splice(0, maxWidth);
+      }
+    }
+  }
+};

README.md

@@ -26,6 +26,7 @@
 - [22. Generate Parentheses](./22/)
 - [23. Merge k Sorted Lists](./23/)
 - [33. Search in Rotated Sorted Array](./33/)
+- [48. Rotate Image](./48/)
 - [49. Group Anagrams](./49/)
 - [53. Maximum Subarray](./53/)
 - [54. Spiral Matrix](./54/)
@@ -118,7 +119,7 @@ Batch create:
 NOTE: JS IS HERE
 -->
 ```ssh
-chapter=54 && mkdir ./$chapter && touch ./$chapter/my_solution.js && touch ./$chapter/solution.js && alias x="node ./$chapter/my_solution.js"
+chapter=48 && mkdir ./$chapter && touch ./$chapter/my_solution.js && touch ./$chapter/solution.js && alias x="node ./$chapter/my_solution.js"
 ```
 > then you can use `x` for quick debug.