Create count_div.rb

rehan-akmal · web-flow · commit d331a5ba227f · 2022-07-18T16:24:32.000+05:00
diff --git a/count_div.rb b/count_div.rb
@@ -0,0 +1,4 @@
+def solution(a)
+  return 0 if a.length != a.uniq.length
+  (1..a.length).inject(:+) == a.inject(:+)? 1 : 0
+end
