Answer:
Following are the code to the given question:
#include <iostream>//defining header file
#include <vector>//defining header file
#include <numeric>//defining header file
using namespace std;
int main()//main method
{
vector<int> countDown(0);//defing an integer array variable countDown
int newSize = 0;//defing an integer variable newSize that holds a value 0
int i = 0;//defing an integer variable i that initialize with 0
newSize = 3;// //use newSize to hold a value
countDown.resize(newSize,0);// calling the resize method that accepts two parameters
for (i = 0; i < newSize; ++i)//defining a loop that reverse the integer value
{
countDown[i] = newSize -i;//reverse the value and store it into countDown array
cout << countDown.at(i) << " ";//print reverse array value
}
cout << "Go!" << endl;//print message
return 0;
}
Output:
3 2 1 Go!
Explanation:
In the given code inside the main method an integer array "countDown" and two integer variables "newSize and i" is declared that initializes a value that is 0.
In the next step, an array is used that calls the resize method that accepts two parameters, and define a for a loop.
In this loop, the array is used to reverse the value and print its value with the message.