Answer : True
Explanation: Vectors can hold, data of the same type and can automatically expand accordingly and change it’s size. The date stored in vectors should be linear.
- The syntax for vector is vector<int>v;
- Mostly this is used in C++ as an alternative to arrays
- If you want to use vector in your program then define it in the header first i.e.
#include <vector>
- Push back is a function, that is used to insert an element into the vector
- Pop back removes the element from the vector
Answer:
C (2.5)
Explanation:
int(3.5) = 3
So, using order of operations, (3/2)+1=2.5
a hard copy stores data and information in the form of physical files it may be images text photographs and more a soft copy data and information in the form of virtual file saved on a computer or a drive you can preserve a hard copy for two long because its day subjected to wear and tear
Complete Question:
Write statements that output variable numComputers as follows. End with a newline. There are 10 computers.
#include <iostream>
using namespace std;
int main()
{
int numComputers;
cin >> numComputers; // Program will be tested with values: 10.
...
return 0;
}
Answer:
cout << "There are ";
cout << numComputers;
cout << " computers." << "\n";
Explanation:
Using three cout statements the string "There are 10 computers." is printed out, notice that the variable numComputers is entered by the user when the program is run. Another way of concatenating an integer variable and string for printout is by the use of the + (plus) operator.
