You have been hired by the Department of Computer Science at Wayne State University to write a C++ console application to count the number of students who got a grade of "A- (90-92%)" and "B (83-86%)" in CSC 1101. Use a validation loop to get from the user the number of students in the section in the range 1-20. Then prompt the user for the point total for each of the students. Store the point totals in an integer array (declared of size 20). Then create and call two functions: stdGradeAminus() reads through the first n spots of the array and counts the number of point totals between 90-92. n is the number of students in the section. Here is part of the function declaration: int stdGradeAminus (int arr[], int n) { … } stdGradeB() reads through the first n spots of the array and counts the number those are between 83-86. n is the number of students in the section. Here is part of the function declaration: int stdGradeB (int arr[], int k) { … } Sample screenshot: Sample input: Enter the number of students of the section (1 to 20): 30 Enter the section size in a range 1 to 20: 10 Enter the point total of each student: (0 to 100): 17 83 90 97 100 83 84 55 85 92 Output: The number of students got A- is: 2 The number of students got B is: 4
Control structures
Control structures are block of statements that analyze the value of variables and determine the flow of execution based on those values. When a program is running, the CPU executes the code line by line. After sometime, the program reaches the point where it has to make a decision on whether it has to go to another part of the code or repeat execution of certain part of the code. These results affect the flow of the program's code and these are called control structures.
Switch Statement
The switch statement is a key feature that is used by the programmers a lot in the world of programming and coding, as well as in information technology in general. The switch statement is a selection control mechanism that allows the variable value to change the order of the individual statements in the software execution via search.
You have been hired by the Department of Computer Science at Wayne State University to write a C++ console application to count the number of students who got a grade of "A- (90-92%)" and "B (83-86%)" in CSC 1101. Use a validation loop to get from the user the number of students in the section in the range 1-20. Then prompt the user for the point total for each of the students. Store the point totals in an integer array (declared of size 20). Then create and call two functions:
stdGradeAminus() reads through the first n spots of the array and counts the number of point totals between 90-92. n is the number of students in the section. Here is part of the function declaration:
int stdGradeAminus (int arr[], int n)
{
…
}
stdGradeB() reads through the first n spots of the array and counts the number those are between 83-86. n is the number of students in the section. Here is part of the function declaration:
int stdGradeB (int arr[], int k)
{
…
}
Sample screenshot:
Sample input:
Enter the number of students of the section (1 to 20): 30
Enter the section size in a range 1 to 20: 10
Enter the point total of each student: (0 to 100):
17
83
90
97
100
83
84
55
85
92
Output:
The number of students got A- is: 2
The number of students got B is: 4
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