fork download
copy 
  1. #include <iostream>
  2. #include<string>
  3. #include<vector>
  4.  
  5. using namespace std;
  6.  
  7. void check(vector<int> a, vector<int> b, int n)
  8. {
  9. 	bool met_plus = false, met_minus = false;
  10. 	bool possible = true;
  11. 	for (int i = 0; i < n && possible; i++)
  12. 	{
  13. 		if (a[i] > b[i])
  14. 		{
  15. 			if (!met_minus)
  16. 				possible = false;
  17. 		}
  18. 		else if (a[i] < b[i])
  19. 		{
  20. 			if (!met_plus)
  21. 				possible = false;
  22. 		}
  23. 		if (a[i] == -1)
  24. 			met_minus = true;
  25. 		if (a[i] == 1)
  26. 			met_plus = true;
  27. 	}
  28. 	possible ? cout << "YES\n" : cout << "NO\n";
  29. }
  30.  
  31. int main() {
  32. 	int t;
  33. 	cin >> t;
  34. 	for (int i = 0; i < t; i++)
  35. 	{
  36. 		int n;
  37. 		vector<int> a, b;
  38. 		cin >> n;
  39. 		for (int j = 0; j < n; j++)
  40. 		{
  41. 			int t;
  42. 			cin >> t;
  43. 			a.push_back(t);
  44. 		}
  45. 		for (int j = 0; j < n; j++)
  46. 		{
  47. 			int t;
  48. 			cin >> t;
  49. 			b.push_back(t);
  50. 		}
  51. 		check(a, b, n);
  52. 	}
  53. 	return 0;
  54. }
Success #stdin #stdout 0s 4524KB
comments (?)
stdin
copy 
5
3
1 -1 0
1 1 -2
3
0 1 1
0 2 2
2
1 0
1 41
2
-1 0
-1 -41
5
0 1 -1 1 -1
1 1 -1 1 -1
stdout
copy 
YES
NO
YES
YES
NO
https://ideone.com/svwNYB
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!