9,1266

2 files changed, 60 insertions, 0 deletions

diff --git a/1266/main.go b/1266/main.go
new file mode 100644
index 0000000..13cab76
--- /dev/null
+++ b/1266/main.go
@@ -0,0 +1,37 @@
+package main
+
+import "fmt"
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}
+
+func abs(a int) int {
+	if a > 0 {
+		return a
+	}
+	return -a
+}
+
+func minTimeToVisitAllPoints(points [][]int) int {
+	sum := 0
+	for index, item := range points {
+		if index+1 < len(points) {
+			min_dist_x := abs(item[0] - points[index+1][0])
+			min_dist_y := abs(item[1] - points[index+1][1])
+			sum += min(min_dist_x, min_dist_y) + abs(min_dist_x-min_dist_y)
+		}
+	}
+
+	return sum
+}
+
+func main() {
+	points2 := [][]int{{3, 2}, {-2, 2}}
+	fmt.Println(minTimeToVisitAllPoints(points2))
+	points := [][]int{{1, 1}, {3, 4}, {-1, 0}}
+	fmt.Println(minTimeToVisitAllPoints(points))
+}
diff --git a/9/main.go b/9/main.go
new file mode 100644
index 0000000..cc44567
--- /dev/null
+++ b/9/main.go
@@ -0,0 +1,23 @@
+package main
+
+import "fmt"
+
+func isPalindrome(x int) bool {
+	if x < 0 {
+		return false
+	}
+	var y int
+	for i := x; i > 0; i /= 10 {
+		y = y*10 + i%10
+		fmt.Println(y)
+	}
+	return x == y
+}
+
+func main() {
+	fmt.Println(isPalindrome(12345678))
+	fmt.Println(isPalindrome(1234321))
+	fmt.Println(isPalindrome(121))
+	fmt.Println(isPalindrome(-121))
+	fmt.Println(isPalindrome(10))
+}