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Added Iterative Deepening Depth First Search #2637

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@hrishikeshathalye hrishikeshathalye commented Oct 2, 2020

Describe your change:

  • Add an algorithm?
  • Fix a bug or typo in an existing algorithm?
  • Documentation change?

Checklist:

  • I have read CONTRIBUTING.md.
  • This pull request is all my own work -- I have not plagiarized.
  • I know that pull requests will not be merged if they fail the automated tests.
  • This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
  • All new Python files are placed inside an existing directory.
  • All filenames are in all lowercase characters with no spaces or dashes.
  • All functions and variable names follow Python naming conventions.
  • All function parameters and return values are annotated with Python type hints.
  • All functions have doctests that pass the automated testing.
  • All new algorithms have a URL in its comments that points to Wikipedia or other similar explanation.
  • If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.
def ids(graph, start, goal):
# dfs helper function to perform depth limited dfs
def dfs(graph, start, goal, depth, path):
Comment on lines +7 to +9

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@dhruvmanila

dhruvmanila Oct 3, 2020
Member

  • Full function name instead of one letter name
  • Type hints
  • Doctest
"""
if any of the above dfs runs do not give path,
then it means node does not exist and return -1
"""
Comment on lines +23 to +26

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@dhruvmanila

dhruvmanila Oct 3, 2020
Member

Don't mix docstring with comments.
Use """ ... """ for docstrings and # ... for comments

"""
A sample map of Romania
(Taken from Chapter 3 of Russell & Norvig. Artificial Intelligence)
"""
Comment on lines +39 to +42

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@dhruvmanila

dhruvmanila Oct 3, 2020
Member

This will be a comment.
Please provide the link to the resource.

path.append(start)
if start == goal:
return path
for i in graph[start]:

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@dhruvmanila

dhruvmanila Oct 3, 2020
Member

What is i in here?
Please use appropriate names for the variables as mentioned in CONTRIBUTING.md

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