During official programming contests, we (our team) used to use printed references(codes) for algorithms during the contest. When I had my first coding test for a job interview, the rules are different; we can't use references/copy codes.

So I asked a friend about this; what are the algorithms allowed to look on during a coding test. He told me that advanced algorithms like Maximum Flow are allowed to look on during a coding test, yet ones like BFS, DFS and Dijkstra are supposed to be known without being looked on during the test.

But for online contests, aren't we allowed to look on BFS, DFS, ... etc during the contest? Do things are same for coding test?

That something I need to discuss with others.