Codeforces 519B. A and B and Compilation Errors Solution

 Solution in C++:

///**********ALLAH IS ALMIGHTY************///

///AH Tonmoy

///Department of CSE,23rd batch

///Islamic University,Bangladesh 

1. #include<iostream>
2. using namespace std;
3. int main()
4. {
5. int n,s1=0,s2=0,s3=0,i;
6. cin>>n;
7. int a[n+1];
8. for(i=0; i<n; i++)
9. {
10. cin>>a[i];
11. s1=s1+a[i];
12. }
13. for(i=0; i<n-1; i++)
14. {
15. cin>>a[i];
16. s2=s2+a[i];
17. }
18. for(i=0; i<n-2; i++)
19. {
20. cin>>a[i];
21. s3=s3+a[i];
22. }
23. cout<<s1-s2<<endl;
24. cout<<s2-s3<<endl;
25. }