Why it's showing error ? How to reverse an array elements?

Question

#include <iostream>
using namespace std;

int main()
{ int n;
int a[n];
cout<<"enter a number";
cin>>n;
for(int i=0;i<n;i++)
{cin>>a[i];
}
for(int i=n-1;i>=0;i--)
{cin>>a[i];
cout<<a[i];
}
return 0;
}

Answer 1

Diya

Why you are taking input inside 2nd loop when you have taken inside 1st loop.

int a[n] should be declare after taking n input

------+++------

#include <iostream>
using namespace std;

int main() {
int n;

cout << "enter a number" << endl;
cin >> n;

int a[n];

for(int i = 0; i < n; i++) {
cin >> a[i];
}

for(int i = n - 1; i >= 0; i--) {
cout << a[i] << " ";
}

return 0;
}

Answer 2

Now I got it thanks