Chapter 9

QUESTION NO 1

Write a C++ program that declares an array alpha of 50 components of
type double. Initialize the array so that the first 25 components are equal to
the square of the index variable, and the last 25 components are equal to
three times the index variable. Output the array so that 10 elements per line
are printed.



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QUESTION NO 2

Write a C++ function, smallestIndex, that takes as parameters an int
array and its size and returns the index of the first occurrence of the smallest
element in the array. Also, write a program to test your function.



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QUESTION NO 3

Write a C++ function, lastLargestIndex, that takes as parameters an int
array and its size and returns the index of the last occurrence of the
largest element in the array. Also, write a program to test your function.



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QUESTION NO 4

Write a program that reads a file consisting of students’ test scores in the
range 0–200. It should then determine the number of students having
scores in each of the following ranges: 0–24, 25–49, 50–74, 75–99,
100–124, 125–149, 150–174, and 175–200. Output the score ranges
and the number of students. (Run your program with the following input
data: 76, 89, 150, 135, 200, 76, 12, 100, 150, 28, 178, 189, 167, 200,
175, 150, 87, 99, 129, 149, 176, 200, 87, 35, 157, 189.).



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QUESTION NO 5

Write a program that prompts the user to input a string and outputs the
string in uppercase letters. (Use a character array to store the string.)



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Question 7

Write a program that allows the user to enter the last names of five candidates
in a local election and the number of votes received by each candidate. The
program should then output each candidate’s name, the number of votes
558 | Chapter 9: Arrays and Stringsreceived, and the percentage of the total votes received by the candidate.
Your program should also output the winner of the election. A sample
output is:
Candidate Votes Received % of Total Votes
Johnson 5000 25.91
Miller 4000 20.73
Duffy 6000 31.09
Robinson 2500 12.95
Ashtony 1800 9.33
Total 19300
The Winner of the Election is Duffy



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Question 9

Write a program that uses a two-dimensional array to store the highest and
lowest temperatures for each month of the year. The program should
output the average high, average low, and the highest and lowest temperatures for the year. Your program must consist of the following functions:
a. Function getData: This function reads and stores data in the twodimensional array.
b. Function averageHigh: This function calculates and returns the
average high temperature for the year.
c. Function averageLow: This function calculates and returns the average low temperature for the year.
d. Function indexHighTemp: This function returns the index of the
highest high temperature in the array.
e. Function indexLowTemp: This function returns the index of the
lowest low temperature in the array.
(These functions must all have the appropriate parameters.)



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