Codeforces 116A Tram Solution in C++

1. ///SMS
2. #include <iostream>
3. using namespace std;
4. int main ()
5. {
6. int i,j,a,b,x=0,y=0,n,s=0;
7. cin>>n;
8. for (i=0;i<n;i++)
9. {
10. cin>>a>>b;
11. x-=a;
12. x+=b;
13. if (x>s) s=x;
14. }
15. cout<<s<<endl;
16. return 0;
17. }