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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main() 
  4. {
  5. 	int a,b;cin >> a >> b;
  6. 	int count = 0;
  7. 	pair<int,int> p[1000];
  8. 	for(int i = 0;i < b;++i)
  9. 	{
  10. 		cin >> p[i].first >> p[i].second;
  11. 	}
  12. 	sort(p,p + 1);
  13. 	for(int i = 0;i < b;i++)
  14. 	{
  15. 		if(a <= p[i].first)
  16. 		{
  17. 			count++;
  18. 			break;
  19. 		}
  20. 		else
  21. 		{
  22. 			a = a + p[i].second;
  23. 		}
  24. 	}
  25. 	if(count > 0)
  26. 	{
  27. 		cout << "NO";
  28. 	}
  29. 	else
  30. 	{
  31. 		cout << "YES";
  32. 	}
  33. 	return 0;
  34. }
Success #stdin #stdout 0.01s 5504KB
comments (?)
stdin
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10 1
100 100
stdout
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NO
https://ideone.com/bbfD2i
language:
C++ (gcc 8.3)
created:
1 year ago
visibility:
public

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