Description
How to turn in:
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Write three programs and submit them on iLearn
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If you write the programs in repl.it, the files will be named main.cpp; you will need to rename them
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The names are in the assignment; incorrect names will be graded as 0
Before doing this homework, read the slides named read_data_from_input_file.ppton iLearn to understand how you can read integer numbers from an input data file
Part 1: Distinct Numbers (10 points)
This program should:
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Read an input file name from a user (note: the input file contains several integer numbers)
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Display the minimum number among the input values
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Display a list of distinct elements in the input and the number of occurrences of each distinct value
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Be submitted as hw1-1.cpp
For the assignment, you can assume that the number of input values in a file can’t be more than 30.
This is a sample execution of your program. For the assignment, your program has to display the result exactly as the sample run. User input is in bold.
Enter input file name: t1.txt
Min Number: -3
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Number
Count
2
3
1
1
-3
1
For the sample run, this is the input file t1.txt. Note that the first number (5) in the file indicates that there are 5 values (= 2, 1, 2, -3, 2) in the file.
5
2
1
2
-3
2
This is another sample run:
Enter input file name: t2.txt
Number Count
-5 1
1 1
-
2
-
2
-
1
21
This is the content of the input file t2.txt:
8
-5
1
5
3
10
2
3
5
Part 2: Horizontal Histogram (5 points)
This program should:
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Read an input file name from a user (note: the input file will always contain exactly five integers)
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Draw a horizontal histogram for the numbers
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Be submitted as hw1-2.cpp
For example, let’s assume that an input file named t3.txt in your repl has the following numbers.
5
2
1
3
7
A sample run of your program should look exactly as below (user input in bold):
Enter input file name: t3.txt
===== Horizontal Histogram =====
-
*****
-
* *
-
*
-
* * *
-
*******
This is another sample input file named t4.txt which includes the following numbers.
1
5
2
4
This is the sample run with the file.
Enter input file name: t4.txt
===== Horizontal Histogram =====
-
*
-
*
-
*****
-
* *
4:****
Part 2: Vertical Histogram (10 points)
This program should:
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Read an input file name from a user (note: the input file will always contain exactly seven integers)
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Draw a horizontal histogram for the numbers
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Have a height of the vertical histogram the same as the maximum value in the data set
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Be submitted as hw1-3.cpp
For example, let’s assume that an input file named t5.txt in your repl has the following numbers.
5
2
1
3
7
4
2
A sample run of your program should look exactly as below (user input in bold).
Enter input file name: t5.txt
===== Vertical Histogram =====
*
*
* *
* * *
* * * *
** ****
*******
————-
5213742
This is another sample input file named 6.txt which includes the following numbers.
1
1
5
2
4
5
2
This is the sample run with the file.
Enter input file name: t6.txt
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=====
Vertical Histogram =====
*
*
*
* *
*
* *
*
****
*******
————-
1 1 5
2 4 5
2
Reminder: Include the header comment as described below. If you miss parts, you will get the penalty.
/*
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Title: hw1_1.cpp
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Abstract: This program displays a message Hello World on the screen.
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Author: Dr. Gross
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Email: jgross@csumb.edu
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Estimate: 4 hours
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Date: 5/5/1955
*/
#include <iostream>
using namespace std;
int main(){
cout << “Hello World!\n”;
return 0;
}
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