Write a program that produces a histogram of student grades for an assignment. The program must allow the user to input each student's grade as an integer until the user inputs -1. The program will store user's input in a vector (covered in Chapter 8). Then the program will allocate the memory for the histogram such that the histogram is able to hold all values from 0 to the maximum grade found in the vector. After this, the program will compute the histogram and print the histogram to standard output. For example, if the user's input was:

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9.8:
Write a program that produces a histogram of student grades for an
assignment. The program must allow the user to input each student's grade as an
integer until the user inputs -1. The program will store user's input in a
vector (covered in Chapter 8). Then the program will allocate the memory for the
histogram such that the histogram is able to hold all values from 0 to the
maximum grade found in the vector. After this, the program will compute the
histogram and print the histogram to standard output.
For example, if the user's input was:
20
30
4
20
30
30
-1
Then the output would be:
Number of 4's: 1
Number of 20's: 2
Number of 30's: 3
SAMPLE RUN #1: ./histogram
Interactive Session
Hide Invisibles
Enter:20.30.4.20.30.30.-14
the student's.scores, terminating with. -1: - Number of.4's: 14
Number of 20's: 24
Number of 30's::34
Transcribed Image Text:9.8: Write a program that produces a histogram of student grades for an assignment. The program must allow the user to input each student's grade as an integer until the user inputs -1. The program will store user's input in a vector (covered in Chapter 8). Then the program will allocate the memory for the histogram such that the histogram is able to hold all values from 0 to the maximum grade found in the vector. After this, the program will compute the histogram and print the histogram to standard output. For example, if the user's input was: 20 30 4 20 30 30 -1 Then the output would be: Number of 4's: 1 Number of 20's: 2 Number of 30's: 3 SAMPLE RUN #1: ./histogram Interactive Session Hide Invisibles Enter:20.30.4.20.30.30.-14 the student's.scores, terminating with. -1: - Number of.4's: 14 Number of 20's: 24 Number of 30's::34
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