Write a Prolog function (i.e, a Prolog program), called count(X,L,N), that returns in variable N the number that X appears in list L. You can assume that all values in list L are integer.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Write a Prolog function (i.e, a Prolog program), called count(X,L,N), that returns in variable N the number that X appears in list L. You can assume that all values in list L are integer.

 

Some examples,

 

count(6,[9,5,3,9,14],N) should return N=0.

 

count(3,[9,5,3,9,14],N) should return N=1.

 

count(9,[9,5,3,9,14],N) should return N=2.

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