jakaria_hossain

codeforce - Lunch Rush

Mar 29th, 2019
84
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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define fastread()(ios_base::sync_with_stdio(false),cin.tie(NULL));
  4. int main()
  5. {
  6. int m,n,res,x,y;
  7. cin>>m>>n;
  8. for(int i=0;i<m;i++)
  9. {
  10. cin>>x>>y;
  11. if(i==0)
  12. {
  13. if(y>n)res=x+n-y;
  14. else res=x;
  15. }
  16. else
  17. {
  18. if(y>n)res=max(res,x+n-y);
  19. else res=max(res,x);
  20. }
  21. }
  22. cout<<res<<endl;
  23. }
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