whenever i run below code , it shows output: success but when i submit the code it shows that the test case have wrong answer. please tell me what i am doing wrong
#include
using namespace std;
int main() {
int n,a,reverse;
if((n>=0) &&(n<=1000000000))
{
cin>>n;
}
while(n!=0)
{
a=n%10;
reverse=(reverse*10)+a;
n=n/10;
}
cout<<reverse;
return 0;
}