add solution by Go leanguage

Beginner Level 📁/Alternating Square Pattern/solution.go

@@ -0,0 +1,29 @@
+package main
+
+import "fmt"
+
+func main() {
+    var N int
+    fmt.Print("Enter the number of lines to print: ")
+    fmt.Scan(&N)
+
+    count := 1
+    for i := 1; i <= N; i++ {
+        if i%2 == 1 {
+            // Print increasing numbers for odd rows
+            for j := 0; j < 5; j++ {
+                fmt.Printf("%d ", count)
+                count++
+            }
+        } else {
+            // Print decreasing numbers for even rows
+            temp := count + 4
+            for j := 0; j < 5; j++ {
+                fmt.Printf("%d ", temp)
+                temp--
+            }
+            count += 5
+        }
+        fmt.Println()
+    }
+}