YAPC::EU 2018 Glasgow Update!

Task/Amb/Ring/amb.ring

@@ -0,0 +1,32 @@
+# Project : Amb
+
+set1 = ["the","that","a"]
+set2 = ["frog","elephant","thing"]
+set3 = ["walked","treaded","grows"]
+set4 = ["slowly","quickly"]
+text = amb(set1,set2,set3,set4)
+if text != ""
+   see "Correct sentence would be: " + nl  + text + nl
+else
+   see "Failed to fine a correct sentence."
+ok
+
+func wordsok(string1, string2)
+       if substr(string1,len(string1),1) = substr(string2,1,1)
+          return true
+       ok
+       return false
+
+func amb(a,b,c,d)
+       for a2 = 1 to len(a)
+            for b2 =1 to len(b)
+                 for c2 = 1 to len(c)
+                      for d2 = 1 to len(d)
+                           if wordsok(a[a2],b[b2]) and wordsok(b[b2],c[c2]) and wordsok(c[c2],d[d2])
+                              return a[a2]+" "+b[b2]+" "+c[c2]+" "+d[d2]
+                           ok
+                      next
+                 next
+            next
+       next
+       return ""