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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int a[11111], b[11111];
  5.  
  6. int main() {
  7. 	int t;
  8. 	cin >> t;
  9. 	while (t --> 0) {
  10. 		int n;
  11. 		cin >> n;
  12. 		for(int i = 0; i < n; ++i)
  13. 			cin >> a[i];
  14. 		for(int i = 0; i < n; ++i)
  15. 			cin >> b[i];
  16. 		int ans = 0, last = 0;
  17. 		for(int i = 0; i < n; ++i) {
  18. 			if (a[i] >= last + b[i])
  19. 				ans++;
  20.  
  21. 			last += b[i];
  22. 			if (last > a[i])
  23. 				last = a[i];
  24. 		}
  25. 		cout << ans << "\n";
  26. 	}
  27. 	return 0;
  28. }
Success #stdin #stdout 0s 3500KB
comments (?)
stdin
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2
3
1 10 15
1 10 3
3
10 20 30
15 5 20
stdout
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2
1
https://ideone.com/qWDQzG
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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