Answer:
The program to this question as follows:
Program:
#include <iostream> //defining header file
#include <vector> //defining header file
using namespace std;
int main() //defining main method
{
//defining integer variable NUM_VALS and i.
int NUM_VALS = 4,i;//assign value in NUM_VALS variable
vector<int> courseGrades(NUM_VALS); //defining vector array
cout<<"Input values: "; //print message
for(i=0;i<NUM_VALS;i++) //loop for input value
{
//input value in verctor array
cin>>courseGrades[i]; //input from user-end
}
for (i = 0; i < NUM_VALS; i++) //loop to print value
{
cout<<courseGrades[i]<< " ";//print value
}
cout << endl;//for new line
for (i = NUM_VALS-1;i >= 0;i--)//loop to print value in reverse order
{
//print value in reverse order
cout << courseGrades[i] << " "; //print value
}
cout << endl; //for new line
return 0;
}
Output:
Input values: 2
3
5
6
2 3 5 6
6 5 3 2
Step-by-step explanation:
In the above-given code two integer variable "NUM_VALS and i" is declared, in which variable "NUM_VALS" assigns a value, that is 4, in the next step, a vector array "courseGrades" is defined, in which we take input from the user end.
- In the next step two for loop is declared, in the first loop we simply print the value of the "courseGrades".
- The second loop is also used to print the "courseGrades" value but, in the reverse order.