A programming language permits indexing of arrays with character subscripts; for example, CHR_ARRAY[‘A’:’D’]. In such a case, the elements of the array are CHR_ARRAY[‘A’], CHR_ARRAY[‘B’], and so on, and the ordinal number (ORD) of the characters, namely, ORD(‘A’) = 1, ORD(‘B’) = 2, ORD(‘Z’) = 26 and so on, is used to denote the index. Now, two arrays TEMP[1:5, -1:2] and CODE[‘A’:’Z’, 1:2] are stored in memory beginning from address 500. Additionally, CODE succeeds TEMP in storage. Calculate the addresses of (i) TEMP[5, -1], (ii) CODE[‘N’,2] and (iii) CODE[‘Z’,1].

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
Chapter1: Introduction
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A programming language permits indexing of arrays with character subscripts;
for example, CHR_ARRAY[‘A’:’D’]. In such a case, the elements of the array are
CHR_ARRAY[‘A’], CHR_ARRAY[‘B’], and so on, and the ordinal number (ORD)
of the characters, namely, ORD(‘A’) = 1, ORD(‘B’) = 2, ORD(‘Z’) = 26 and so on,
is used to denote the index.
Now, two arrays TEMP[1:5, -1:2] and CODE[‘A’:’Z’, 1:2] are stored in
memory beginning from address 500. Additionally, CODE succeeds TEMP
in storage. Calculate the addresses of (i) TEMP[5, -1], (ii) CODE[‘N’,2] and
(iii) CODE[‘Z’,1].

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