✨ [832] Flipping an Image - inplace

Author: enkr1

832/my_solution.js

@@ -3,15 +3,21 @@
  * @return {number[][]}
  */
 const flipAndInvertImage = (image) => {
-
-  let result = Array.from({ length: image.length }, () => Array.from({ length: image[0].length }, () => []));
-  console.log(result)
+  // let result = Array.from({ length: image.length }, () => Array.from({ length: image[0].length }, () => []));
+  // console.log(result)
   for (let row = 0; row < image.length; row++) {
+    let tmpArray = Array.from({ length: image[row].length }, () => []);
+    console.log(tmpArray)
     for (let col = 0; col < image[row].length; col++) {
-      result[row][image[row].length - 1 - col] = image[row][col] ^ 1;
+      // result[row][image[row].length - 1 - col] = image[row][col] ^ 1;
+      tmpArray[image[row].length - 1 - col] = image[row][col] ^ 1;
     }
+    console.log(tmpArray)
+    console.log(image)
+    image[row] = tmpArray
+    console.log(image)
   }
-  return result;
+  return image;
 };
 
 let x = null;

832/solution.js

@@ -2,13 +2,29 @@
  * @param {number[][]} image
  * @return {number[][]}
  */
-const flipAndInvertImage = (image) => {
-  let result = Array.from({ length: image.length }, () => Array.from({ length: image[0].length }, () => []));
+const flipAndInvertImage = (image) => { // inplace
   for (let row = 0; row < image.length; row++) {
+    let tmpArray = Array.from({ length: image[row].length }, () => []);
     for (let col = 0; col < image[row].length; col++) {
-      result[row][image[row].length - 1 - col] = image[row][col] ^ 1;
+      tmpArray[image[row].length - 1 - col] = image[row][col] ^ 1;
     }
+    image[row] = tmpArray
   }
-  return result;
+  return image;
 };
 
+let x = null;
+x = flipAndInvertImage([[1, 1, 0], [1, 0, 1], [0, 0, 0]])
+console.log("Result")
+console.log(x)
+
+
+// const flipAndInvertImage = (image) => {
+//   let result = Array.from({ length: image.length }, () => Array.from({ length: image[0].length }, () => []));
+//   for (let row = 0; row < image.length; row++) {
+//     for (let col = 0; col < image[row].length; col++) {
+//       result[row][image[row].length - 1 - col] = image[row][col] ^ 1;
+//     }
+//   }
+//   return result;
+// };