PIVOT and UNPIVOT in SQL

Question

help me out in solving this problem. my table is like below.

 

UniqueId	ActivityName
111	activity1
112	activity1
111	activity2
113	activity2

i want the result like below using sql pivoting query 2016

 

UniqueId	activityname	activity1	activity2
111	activity1	yes	yes
112	activity1	yes	No
113	activity2	No	yes