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
Section: Chapter Questions
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Create a function that returns the characters from a list or string ron odd
or even positions, depending on the specifiers. The specifier will be "odd"
for items on odd positions (1, 3, 5, ...) and "even" for items on even positions
(2, 4, 6, ...).
Examples
char_at_pos([2, 4, 6, 8, 10], "even") [4, 8]
# 4 & 8 occupy the 2nd & 4th positions
-
char_at_pos ("EDABIT", "odd")
"EAI"
# "E", "A" and "I" occupy the 1st, 3rd and 5th positions
char_at_pos(["A", "R", "B", "I", "T", "R", "A", "R", "I", "L",
Transcribed Image Text:Create a function that returns the characters from a list or string ron odd or even positions, depending on the specifiers. The specifier will be "odd" for items on odd positions (1, 3, 5, ...) and "even" for items on even positions (2, 4, 6, ...). Examples char_at_pos([2, 4, 6, 8, 10], "even") [4, 8] # 4 & 8 occupy the 2nd & 4th positions - char_at_pos ("EDABIT", "odd") "EAI" # "E", "A" and "I" occupy the 1st, 3rd and 5th positions char_at_pos(["A", "R", "B", "I", "T", "R", "A", "R", "I", "L",
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