psf/black code formatting (#1421)

* added sol3.py for problem_20 * added sol4.py for problem_06 * ran `black .` on `\Python`
2019-10-22 22:43:48 +05:30
parent 11e2207182
commit 7592cba417
28 changed files with 413 additions and 252 deletions
--- a/dynamic_programming/longest_common_subsequence.py
+++ b/dynamic_programming/longest_common_subsequence.py
@@ -76,7 +76,7 @@ if __name__ == "__main__":
    expected_subseq = "GTAB"

    ln, subseq = longest_common_subsequence(a, b)
-##    print("len =", ln, ", sub-sequence =", subseq)
+    ##    print("len =", ln, ", sub-sequence =", subseq)
    import doctest

    doctest.testmod()