Construct flowcharts and algorithms for the following problems: 1. Convert a decimal number into its equivalent binary, octal, or hexadecimal form according to the given option. 2. Test whether a given string is a palindrome. 3. Count the number of vowels, consonants, and special characters in a given string. 4. Unscramble a four-letter word. [Hint. Let abcd be the given four-character string. The process should find out all the words by jumbling the characters, such as acbd and adbe.] 5. Convert a given Roman numeral into its decimal equivalent. The fol- lowing table gives the Roman numerals and their decimal equivalents: Roman Decimal M 1000 D 500 C 100 50 X 10 V 5 The algorithm for converting a Roman numeral RI, R2, .Rn to a decimal is given below: 1. I+1 (I denotes the position of the symbol being scanned) 2. DECIMAL 0 DECIMAL is to hold the decimal value ofthe given Roman numeral) 3. REPEAT steps 4 through 6 WHILE I < N. 4. If the decimal value of R, is greater than or equal to the decimal value of R,., add the decimal value of R, to DECIMAL else subtract the decimal value of R, from DECIMAL. 5. COMPUTE I +I+1. 6. END-WHILE.

Construct flowcharts and algorithms for the following problems: 1. Convert a decimal number into its equivalent binary, octal, or hexadecimal form according to the given option. 2. Test whether a given string is a palindrome. 3. Count the number of vowels, consonants, and special characters in a given string. 4. Unscramble a four-letter word. [Hint. Let abcd be the given four-character string. The process should find out all the words by jumbling the characters, such as acbd and adbe.] 5. Convert a given Roman numeral into its decimal equivalent. The fol- lowing table gives the Roman numerals and their decimal equivalents: Roman Decimal M 1000 D 500 C 100 50 X 10 V 5 The algorithm for converting a Roman numeral RI, R2, .Rn to a decimal is given below: 1. I+1 (I denotes the position of the symbol being scanned) 2. DECIMAL 0 DECIMAL is to hold the decimal value ofthe given Roman numeral) 3. REPEAT steps 4 through 6 WHILE I < N. 4. If the decimal value of R, is greater than or equal to the decimal value of R,., add the decimal value of R, to DECIMAL else subtract the decimal value of R, from DECIMAL. 5. COMPUTE I +I+1. 6. END-WHILE.

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

Problem 1PE

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Question

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EXERCISES
Construct flowcharts and algorithms for the following problems:
1. Convert a decimal number into its equivalent binary, octal, or
hexadecimal form according to the given option.
2. Test whether a given string is a palindrome.
3. Count the number of vowels, consonants, and special characters in a
given string.
4. Unscramble a four-letter word.
[Hint. Let abcd be the given four-character string. The process should
find out all the words by jumbling the characters, such as acbd and
adbe.]
5. Convert a given Roman numeral into its decimal equivalent. The fol-
lowing table gives the Roman numerals and their decimal equivalents:
Roman
Decimal
M
1000
500
C
100
L
50
10
V
5
I
1
The algorithm for converting a Roman numeral
R1, R2, ..Rn
to a decimal is given below:
1. I+1
(I denotes the position of the symbol being scanned)
2. DECIMAL+0
DECIMAL is to hold the decimal value of the given Roman numeral
3. REPEAT steps 4 through 6 WHILE I < N.
4. If the decimal value of R, is greater than or equal to the decimal
value of R,, add the decimal value of R, to DECIMAL else subtract
the decimal value of R, from DECIMAL.
5. COMPUTE IeI+1.
6. END-WHILE.
II

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