All the test cases are not passing

[akanksha5332 (Akanksha kashyap)]

My code is showing right output but all test cases are not passed.
#include
using namespace std;
int main() {
int no;
int sum;
cin>>no;
while(no>=0){
sum=sum+no;
cout<<no<<endl;
cin>>no;
if(sum<0){
break;
}
}
return 0;
}