Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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OCAML Problem

Problem 1
Write a function
count 123 : int list -> int * int * int
that takes in an int list 1 and returns a 3-tuple of integers counting the number of 1's, 2's and 3's respectively in 1. For example, count123 [3; 4;2;1;3]
= (1,1,2), and
count123 [4; 4; 1; 2; 1]
(2,1,0).
In [] let count 123 1 =
(* YOUR CODE HERE *)
In [ ]: assert (count123 [3; 4; 2; 1;3]
=
=
(1,1,2))
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Transcribed Image Text:Problem 1 Write a function count 123 : int list -> int * int * int that takes in an int list 1 and returns a 3-tuple of integers counting the number of 1's, 2's and 3's respectively in 1. For example, count123 [3; 4;2;1;3] = (1,1,2), and count123 [4; 4; 1; 2; 1] (2,1,0). In [] let count 123 1 = (* YOUR CODE HERE *) In [ ]: assert (count123 [3; 4; 2; 1;3] = = (1,1,2))
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