Question: Given a log file stored on HDFS with user IDs as follows ( each ID is stored on a record ) . Write a map

Given a log file stored on HDFS with user IDs as follows (each ID is stored on a record).
Write a map/reduce program to find the unique user IDs (the ones that appear only
once in the log).
33,33,50,12,60,70,50 Pseudocode

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