C++ Making a char array recognise spaces upon input - c++

Question

I'm trying to make a program that flips the words you input. The problem comes when I try to write the word and it asks twice for the input:
cin >> Arr >> myStr;
It is logical that it ask twice but everytime I try to use getline the compiler gives out an error (and even if it worked I have to give the input twice) and I need it to include spaces in the character array.
Here is my full code:
#include <iostream>
#include <string>
using namespace std;
string myStr;
string newVal;
int i;
int main()
{
char Arr[i];
cout << "Enter: ";
cin >> Arr >> myStr;
for (i = myStr.length(); i >= 0; i--)
{
cout << Arr[i];
}
cout << endl;
return 0;
}
The loop works.
The first problem can be corrected by achieving the proper use of getline.
The second one, I have got no idea (use a single input to assign two variables).
Thanks in advance, and I apologise if this is too much of a ridiculous question.

Answer 1

Maybe you can try to have a look to this solution that it's more C++ style than yours:
#include <iostream>
#include <string>
int main() {
std::string myStr;
std::cout << "Please give me a string: ";
if(std::getline(std::cin, myStr)) {
for(std::string::reverse_iterator it = myStr.rbegin();
it != myStr.rend();
++it) {
std::cout << *it;
}
std::cout << std::endl;
}
}
I suggest to you to use always std::string in C++ because has all the methods and function that you could need. So don't waste your time with char array like you do in C.

Answer 2

Here it is, as I said. I was digging around and came up with this:
#include <iostream>
#include <string>
using namespace std;
string myStr;
int i;
int main()
{
cout << "Enter: ";
getline (cin, myStr);
i = myStr.size();
cout << i << endl;
char Arr[i];
for (int a = 0; a <= i; a++)
{
Arr[a] = myStr[a];
}
for (i; i >= 0; i--)
{
cout << Arr[i];
}
return 0;
}
I did not know string contents could also have array-like behaviour. Test it out! Works like a charm (as far as tested).
The way I formatted the code it takes no more than 27 lines of code.
Thanks everyone involved, you helped me a lot.
P.S: Couldn't answer before, I can't do it soon enough with my reputation.