renamed 2 digit file names

2018/03/part1.js

@@ -0,0 +1,20 @@
+const fs = require('fs');
+
+let input = fs.readFileSync('input.txt', 'utf-8');
+let grid = {};
+
+for (const line of input.split('\n')) {
+	[rule,
+		id,
+		left,
+		top,
+		width,
+		height] = line.match(/#(\d+) @ (\d+),(\d+): (\d+)x(\d+)/).map(Number);
+	for (let x = left; x < left + width; x++) {
+		for (let y = top; y < top + height; y++) {
+			grid[`${x},${y}`] = (grid[`${x},${y}`] || 0) + 1;
+		}
+	}
+}
+
+console.log(Object.values(grid).filter(v => v > 1).length);