C++ Write one line of code for each line below. What is the template type in eac

Question

C++

Write one line of code for each line below. What is the template type in each case?

- Create a vector to store student IDs
- Create a vector to store student names
- Create a vector to store Point2D points (class Point2D down below)
- Create a set to store unique (no duplicates) student names
- Create a set to store unique (no duplicates) student IDs
- Create a map that maps student IDs to their score
- Create a map that maps student IDs to their name
- Create a map that maps student names to the name of their lab partner

#include <iostream>
#include <string>

using namespace std;

class Point2D
{
private:
double x;
double y;
public:
Point2D() { x = 0; y = 0; }
Point2D(double xVal, double yVal) { x = xVal; y = yVal; }
double getX() {
  return x;
}

double getY() {
  return y;
}

void setX(double xVal) {
  x = xVal;
}

void setY(double yVal) {
  y = yVal;
}

void moveHorizontally(double xVal) {
  x += xVal;
}

void moveVertically(double yVal) {
  y += yVal;
}

void moveToOrigin() {
  x = 0;
  y = 0;
}

void printLocation() {
  cout << "Point at (" << x << ", " << y << ")" << endl;
}
};

int main()
{
Point2D p1;
p1.setX(3); p1.setY(2);
p1.printLocation();
p1.moveHorizontally(5);
p1.printLocation();

p1.moveVertically(5);
p1.printLocation();

return 0;
}

Explanation / Answer

The answers are as follows:

1. Vector to store student ids:
     vector<int> array   (Template type is integer)

2. Vector to store student names:
     vector<string> array   (Template type is string)

3. Vector to store Point2D:
     vector<Point2D> array   (Template type is Point2D)

4. set to store unique names:
     set<string> array   (Template type is string)

5. set to store unique ids:
     set<int> array   (Template type is int)

6. Map that maps student ids to their score:
     map<int, int> mp   (Template type is int & int)

7. Map that maps student ids to their names:
     map<int, string> mp   (Template type is int & string)

8. Map that maps student names to their lab partner names:
     map<string, string> mp   (Template type is string & string)

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