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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main()
  4. {
  5. int n,mul=1;
  6. cin>>n;
  7. int a[n];
  8. for(int i=0;i<n;i++)
  9. {cin>>a[i];
  10. mul=mul*a[i];}
  11. if(mul>10^18)
  12. cout<<-1<<endl;
  13. else
  14. cout<<mul<<endl;
  15. return 0;
  16. }
Success #stdin #stdout 0s 4376KB
stdin
2
1000000000 1000000000
stdout
-1