Score on criteria count, not sample count

grow/sample.go

@@ -13,12 +13,14 @@ func (s *Sample) SetInputs(state *vm.State) {
 	}
 }
 
-func (s *Sample) OutputsMatch(state *vm.State) bool {
+func (s *Sample) matchingOuts(state *vm.State) uint64 {
+	ret := uint64(0)
+
 	for i, val := range s.Out {
-		if state.GlobalMemory().MustReadUnsigned(uint64(i)) != val {
-			return false
+		if state.GlobalMemory().MustReadUnsigned(uint64(i)) == val {
+			ret++
 		}
 	}
 
-	return true
+	return ret
 }