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@karmiphuc
Forked from dbtlr/gist:8319643
Created September 15, 2015 09:22
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RockThePost Coding challenge: expected result 1
+----------------+-------+---------------------+---------------------+
| sender_user_id | name | num_users_contacted | num_users_responded |
+----------------+-------+---------------------+---------------------+
| 3 | Greg | 1 | 1 |
| 1 | John | 4 | 0 |
| 7 | Linda | 1 | 1 |
| 6 | Sue | 2 | 2 |
+----------------+-------+---------------------+---------------------+
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