Pentomino tiling: Difference between revisions

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@@ Line 74: / Line 74: @@
     }
-    static boolean tryPlaceOrientation(int[] o, int r, int c, int shapeIdx) {
+    static boolean tryPlaceOrientation(int[] o, int r, int c, int shapeIndex) {
         for (int i = 0; i < o.length; i += 2) {
+            if (r + o[i] < 0
-            if (r + o[i] < 0 || r + o[i] >= nRows || c + o[i + 1] < 0
+                    || r + o[i] >= nRows
+                    || c + o[i + 1] < 0
                     || c + o[i + 1] >= nCols
                     || grid[r + o[i]][c + o[i + 1]] != -1)
@@ Line 84: / Line 85: @@
         }
-        grid[r][c] = shapeIdx;
+        grid[r][c] = shapeIndex;
         for (int i = 0; i < o.length; i += 2)
-            grid[r + o[i]][c + o[i + 1]] = shapeIdx;
+            grid[r + o[i]][c + o[i + 1]] = shapeIndex;
         return true;