Initial data commit

Task/Variable-declaration-reset/V-(Vlang)/variable-declaration-reset.v

@@ -0,0 +1,25 @@
+fn main() {
+    s := [1, 2, 2, 3, 4, 4, 5]
+
+    // There is no output as 'prev' is created anew each time
+    // around the loop and set implicitly to zero.
+    for i := 0; i < s.len; i++ {
+        curr := s[i]
+        mut prev := 0
+        if i > 0 && curr == prev {
+            println(i)
+        }
+        prev = curr
+    }
+
+    // Now 'prev' is created only once and reassigned
+    // each time around the loop producing the desired output.
+    mut prev := 0
+    for i := 0; i < s.len; i++ {
+        curr := s[i]
+        if i > 0 && curr == prev {
+            println(i)
+        }
+        prev = curr
+    }
+}