UNQ_C7 GRADED FUNCTION: viterbi_backward, 3/4 tests correct

Course Q&A Natural Language Processing NLP with Probabilistic Models
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I have the same issue :frowning:

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Hi @ankit222

It is always to avoid posting query on older threads even if you find similar error as the issue to your code might not be always same as the previous learner’s query. you can always share the link similar to your query in your created topic, to avoid confusion in these older threads.

Please create a new topic with screenshot of only the test result output you got with posting any grade cell codes.

Regards
DP