Create a program that a professor can use to display a grade for any number of students. Each student's grade is based on four t
est scores, with each test worth 100 points. The program should total the student's test scores and then assign the appro priate grade using the information shown in Figure 8-27. Display the student's number and grade in a message, such as "Student 1's grade: AIf necessary, create a new proj ect named Introductory13 Project, and save it in the Cpp8 Chap08 folder. Enter the C++ instructions into a source file named Introductory13.cpp . Also enter appropriate comments and any additional instructions required by the compiler. Save, run, and test the program .
1 answer:
Using the knowledge in computational language in C++ it is possible to write a code that organizes a student's grades in some subjects
<h3>Writing the program in C++</h3>
<em>#include<iostream.h></em>
<em>#include<conio.h></em>
<em>void main()</em>
<em>{</em>
<em>int i,n,sub1,sub2,sub3,sub4,totaltestscore; </em>
<em>cout<<"Enter the number of students : ";</em>
<em>cin>>n; </em>
<em>for(i=1;i<=n;i++) </em>
<em>{</em>
<em>cout<<" Enter the test score of subject 1 out of 100: ";</em>
<em>cin>>sub1; </em>
<em>cout<<" Enter the test score of subject 2 out of 100: ";</em>
<em>cin>>sub2; </em>
<em>cout<<" Enter the test score of subject 3 out of 100: ";</em>
<em>cin>>sub3; </em>
<em>cout<<" Enter the test score of subject 4 out of 100: ";</em>
<em>cin>>sub4; </em>
<em>totaltestscore=sub1+sub2+sub3+sub4;</em>
<em>if(totaltestscore>=372&&totaltestscore<=400) </em>
<em>cout<<" The grade of the student is : A "; </em>
<em>else</em>
<em>if(totaltestscore>=340&&totaltestscore<=371) </em>
<em>cout<<" The grade of the student is : B "; </em>
<em>else</em>
<em>if(totaltestscore>=280&&totaltestscore<=339) </em>
<em>cout<<" The grade of the student is : C "; </em>
<em>else</em>
<em>cout<<" The student fail "; </em>
<em>}</em>
<em>}</em>
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Answer:
1st question:
Use the variables k, d, and s so that they can read three different values from standard input an integer, a float, and a string respectively. On one line, print these variables in reverse order with exactly one space in between each. On a second line, print them in the original order with one space in between them.
Solution:
In Python:
k = input() #prompts user to input value of k i.e. integer value
d = input() #prompts user to input value of d i.e. float value
s = input() #prompts user to input value of s i.e. a string
print (s, d, k) #displays these variable values in reverse order
print (k, d, s)#displays these variable values in original order
In C++:
#include <iostream> // to use input output functions
using namespace std; //to identify objects like cin cout
int main() { //start of main function
int k; //declare int type variable to store an integer value
float d; // declare float type variable to store a float value
string s; // declare string type variable to store an integer value
cin >> k >> d >> s; //reads the value of k, d and s
cout << s << " " << d << " " << k << endl; //displays these variables values in reverse order
cout << k << " " << d << " " << s << endl; } // displays these variable values in original order
Explanation:
2nd question:
You would like the user of a program to enter a customer’s last name. Write a statement that asks user "Last Name:" and assigns input to a string variable called last_name.
Solution:
In Python:
last_name = input("Last Name:")
# input function is used to accept input from user and assign the input value to last_name variable
In C++:
string last_name; //declares a string type variable named last_name
cout<<"Last Name: "; // prompts user to enter last name by displaying this message Last Name:
cin>>last_name; // reads and assigns the input value to string variable last_name
The programs alongwith their outputs are attached.
