Help Needed with starting to learn graphs

I want to start implementing graphs as I have never solved any graph problem…I know about graphs only theoretically as much taught in my Institute. I have decided to solve HackerEarth from topic wise from representation, then bfs, dfs, shortest path,…and so on…Is this the correct way to go? Can anyone suggest me anything better?

There is a full course about graph theory here. I think this will help. Click the link and learn.

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