feat(js): 1a

js/1A.js

@@ -0,0 +1,11 @@
+const line = readline();
+const parts = line.split(" ").map(Number);
+
+var n = parts[0];
+var m = parts[1];
+var a = parts[2];
+
+var tilesN = Math.floor((n + a - 1) / a);
+var tilesM = Math.floor((m + a - 1) / a);
+
+print(tilesN * tilesM);