Data commit

Task/Number-reversal-game/Go/number-reversal-game.go

@@ -0,0 +1,43 @@
+package main
+
+import (
+    "fmt"
+    "math/rand"
+    "sort"
+    "time"
+)
+
+func main() {
+    rand.Seed(time.Now().UnixNano())
+    var k []int
+    for {
+        k = rand.Perm(9)
+        for i, r := range k {
+            if r == 0 {
+                k[i] = 9
+            }
+        }
+        if !sort.IntsAreSorted(k) {
+            break
+        }
+    }
+    fmt.Println("Sort digits by reversing a number of digits on the left.")
+    var n, score int
+    for {
+        fmt.Print("Digits: ", k, ". How many to reverse? ")
+        i, _ := fmt.Scanln(&n)
+        score++
+        if i == 0 || n < 2 || n > 9 {
+            fmt.Println("\n(Enter a number from 2 to 9)")
+            continue
+        }
+        for l, r := 0, n-1; l < r; l, r = l+1, r-1 {
+            k[l], k[r] = k[r], k[l]
+        }
+        if sort.IntsAreSorted(k) {
+            fmt.Print("Digits: ", k, ".\n")
+            fmt.Print("Your score: ", score, ".  Good job.\n")
+            return
+        }
+    }
+}