Where is my code is wrong

#1

#include
using namespace std;
int main() {
int n;
cin>>n;
int arr[n];
for(int i=0; i<n; i++){
cin>>arr[i];
}
cout<<endl;
for(int i=0; i<n; i++){

	swap(arr[i],i);
	

}
for(int i=0; i<n; i++){
	cout<<arr[i]<<endl;
}
return 0;

}

#2

@rathidevesh906_1dcc73a061c159bb, when u r swapping in the array itself elements are changing in that array so use another array

refer here https://ide.codingblocks.com/s/661113

#3

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