22: names scores

04_largest_palindrome_product/main.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	var n int
+	var x int
+	var y int
+	for i := 100; i < 1000; i++ {
+		for j := 100; j < 1000; j++ {
+			tmp := i * j
+			if tmp > n && IsPalindrome(tmp) {
+				x = i
+				y = j
+				n = tmp
+			}
+		}
+	}
+	fmt.Println(x, y, n)
+}
+
+func IsPalindrome(n int) bool {
+	str := strconv.Itoa(n)
+	pb := strings.Builder{}
+	for i := len(str); i > 0; i-- {
+		pb.WriteString(str[i-1 : i])
+	}
+	pstr := pb.String()
+	return str == pstr
+}