Create Solution.java

Author: Jerring

solution/0883.Projection Area of 3D Shapes/Solution.java

@@ -0,0 +1,26 @@
+class Solution {
+    public int projectionArea(int[][] grid) {
+        int n = grid.length;
+        int res = 0;
+        for (int i = 0; i < n; ++i) {
+            for (int j = 0; j < n; ++j) {
+                res += grid[i][j] > 0 ? 1 : 0;
+            }
+        }
+        for (int i = 0; i < n; ++i) {
+            int max = 0;
+            for (int j = 0; j < n; ++j) {
+                max = Math.max(max, grid[i][j]);
+            }
+            res += max;
+        }
+        for (int j = 0; j < n; ++j) {
+            int max = 0;
+            for (int i = 0; i < n; ++i) {
+                max = Math.max(max, grid[i][j]);
+            }
+            res += max;
+        }
+        return res;
+    }
+}