Needs correction

14/code.go

@@ -9,7 +9,7 @@ import (
 
 type Robot struct {
 	x, y   int
-	vX, Vy int
+	vX, vY int
 }
 
 func readInput(file *os.File) []Robot {
@@ -23,7 +23,7 @@ func readInput(file *os.File) []Robot {
 		}
 
 		var robot Robot
-		n, err := fmt.Sscanf(line, "p=%d,%d v=%d,%d", &robot.x, &robot.y, &robot.vX, &robot.Vy)
+		n, err := fmt.Sscanf(line, "p=%d,%d v=%d,%d", &robot.x, &robot.y, &robot.vX, &robot.vY)
 		if n != 4 || err != nil {
 			log.Fatalf("Not able to parse robot '%s': %s", line, err)
 		}
@@ -34,6 +34,46 @@ func readInput(file *os.File) []Robot {
 	return robots
 }
 
+func getMaxXY(robots []Robot) (int, int) {
+	var maxX, maxY int
+	for _, robot := range robots {
+		if robot.x > maxX {
+			maxX = robot.x
+		}
+
+		if robot.y > maxY {
+			maxY = robot.y
+		}
+	}
+
+	return maxX + 1, maxY + 1
+}
+
+func robotsAfter(robots []Robot, maxX, maxY, after int) []Robot {
+	for _, robot := range robots {
+		robot.x = (robot.vX*after + robot.x) % maxX
+		robot.y = (robot.vY*after + robot.y) % maxY
+	}
+
+	return robots
+}
+
+func part1(robots []Robot, maxX, maxY, after int) int {
+	midX := maxX / 2
+	midY := maxY / 2
+
+	var count int
+	robotsMoved := robotsAfter(robots, maxX, maxY, after)
+	fmt.Println(robotsMoved)
+	for _, robot := range robotsMoved {
+		if robot.x != midX && robot.y != midY {
+			count++
+		}
+	}
+
+	return count
+}
+
 func main() {
 	if len(os.Args) < 2 {
 		log.Fatal("You need to specify a file!")
@@ -46,5 +86,7 @@ func main() {
 	}
 
 	robots := readInput(file)
-	fmt.Println(robots)
+	maxX, maxY := getMaxXY(robots)
+	fmt.Println(maxX, maxY)
+	fmt.Println("Part1:", part1(robots, maxX, maxY, 100))
 }