graphs2.swift

func dfs(start: String, target: String) -> Bool{
    visitedNodes.append(start)
    print(start)

    let directNodes = adjacencyList[start]!

    for node in directNodes {
        if node == target {
            print("found the target movie: \(target)")
            return true;
        }

        if (!visitedNodes.contains(node)) {
            if (dfs(start: node, target: target)) {
                return true;
            }
        }
    }
    return false;
}