(number, title, industry, topics, difficulty)

(dfs, multi)

(dfs, multi)

(dfs, multi)

(x)

(dicts)

(to_run, language, problem_num)

(dicts)

(dicts)

(function, test)

(test, query, engine)

(rows)

(rows)

(code, problem_start, problem_num)

(error_message, function_starting_line_num, test_num_starting_lines)

()

(n)

(dicts)

()

()

({ color, icon, title, description })

({ title, description, copyright })

()

()

()

({ heading, children })

()

()

(match_obj)

()

(app)

()

(event)

()

()

(event, reason)

(event, reason)

(event, newValuePopout)

()

(event, context)

(event, context)

()

()

()

()

()

(on, config)

(app, client)

(app, client)