Question

need to be solved including (using namespace std) and without using arrays

Problem: Write a CH program that considers many students (the number of students is given as an input to the program by the user). For each student the program allows the user to input the ID of the student (as integer number), the student gender (one character M for male and F for female), and grades of 2 tests (a Test grade is a value between 0 and 100. The program should allow only correct or acceptable values of tests). The program outputs the student ID, followed by the student grades and average. Note, the load of testl is 40% and test2 is 60%. However, if the student misses test1, then the load for test1 is 20% and for test2 is 80%. If the student misses test2, then the load of test1 is 60% and for test2 is 40%. Consider this information while computing the student average. The program should also compute and output the average of female students and average of the male students.

Answer 1

#include<iostream>

using namespace std;

int main()

{
  
int ID, test1, test2, n;

   double avrg;

   char gender;
  
cout << "Enter the number of Students: ";
  
cin >> n;
  
for(int i = 1; i <= n; i++)

   {
      
cout << "Enter id of " << i << " Student: ";
  
   cin >> ID;
  
   cout << "Enter the Gender of " << i << " Student: ";

       cin >> gender;
      
cout << "Please enter the marks between 0 to 100\n";
  
   cout << "Enter 1st test marks: ";
  
   cin >> test1;
      
cout << "Enter 2nd test marks: ";
  
   cin >> test2;
  
   if(test1 == 0)
  
   {
          
avrg = (test1/100.0 * 20.0) + (test2/100.0 * 80.0);
  
   }
      
else if(test2 == 0)
  
   {
          
avrg = (test1/100.0 * 60.0) + (test2/100.0 * 40.0);

       }
      
else
       {
      
   avrg = (test1/100.0 * 40.0) + (test2/100.0 * 60.0);
  
   }
      
cout << "Avrg of both tests is " << avrg << endl;

   }
  
  
return 0;
}

Enter the number of Students: 3 Enter id of 1 Student: 1 Enter the Gender of 1 Student: M Please enter the marks between 0 to 100 Enter 1st test marks: 56 Enter 2nd test marks: 65 Avrg of both tests is 61.4 Enter id of 2 Student: 2 Enter the Gender of 2 Student: F Please enter the marks between to 100 Enter 1st test marks: 56 Enter 2nd test marks: 74 Avrg of both tests is 66.8 Enter id of 3 Student: 3 Enter the Gender of 3 Student: M Please enter the marks between 0 to 100 Enter 1st test marks: 56 Enter and test marks: 45 Avrg of both tests is 49.4 Process exited after 36.09 seconds with return value o Press any key to continue

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