Initial data commit

Task/Forward-difference/Go/forward-difference.go

@@ -0,0 +1,18 @@
+package main
+
+import "fmt"
+
+func main() {
+    a := []int{90, 47, 58, 29, 22, 32, 55, 5, 55, 73}
+    fmt.Println(a)
+    fmt.Println(fd(a, 9))
+}
+
+func fd(a []int, ord int) []int {
+    for i := 0; i < ord; i++ {
+        for j := 0; j < len(a)-i-1; j++ {
+            a[j] = a[j+1] - a[j]
+        }
+    }
+    return a[:len(a)-ord]
+}