Answer:
The output is "<class 'str'> ".
Explanation:
In the given python code a print() function is defined. Inside this function, a type() function will use, in which a numeric value is passed in the double quotes (" ") as a function parameter. Double quotes are normally used for print value as a message but in this code, value is not printed because we use the type() function.
- The type() function Returns the parameter class type of the argument(object).
- This function is used for debugging. In this function, we pass a single parameter that will return the type of given object.
Answer:
Check the explanation
Explanation:
10
5
3
21
2
-6
the output will be somthing like this:
2 21
You can then suppose that the list of integers will contain at least 2 values.
Answer:
Join
Explanation:
Five basic set operators in relational algebra are as follows:
- Selection - tuple selection
- Projection - extract columns
- Cartesian product - cross product of relations
- Set union - union of two relations
- Set difference - minus operation on two relations
As we can see, Join is not part of the basic set operations but it is implemented using the Cartesian Product operator.
Answer:
#include <iostream>
#include <vector>
using namespace std;
void calGPA();
vector<int> g;
vector<int> h;
int main(){
char pushMore = 'y';
int fg, fh;
for (;;){
if (pushMore == 'n'){
break;
} else{
cout<< "Enter integer for grade: ";
cin>> fg;
cout<< "Enter integer for credit hours: ";
cin>> fh;
g.push_back(fg);
h.push_back(fh);
cout<< "Do you want to add more grade and credit hours? y/n: ";
cin>> pushMore;
}
}
calGPA();
}
void calGPA(){
double total = 0, GPA;
for (int i = 0; i < g.size(); ++i) {
total += g.at(i) * h.at(i) ;
}
cout<< "The GPA is : "<< total/g.size();
}
Explanation:
The C++ source code above defines two vectors 'g' and 'h'. The latter holds the grades of a student while the former holds the credit hours for the subject taken. The void 'calGPA' function calculates and prints the student's GPA.
