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  1. #include <bits/stdc++.h>
  2. #define IOS ios::sync_with_stdio(false);
  3. #define ll long long int
  4. #define PI 3.14159265
  5. #define LIMIT 200000
  6. #define cos2(x) cos ( x * PI / 180.0 )
  7. #define sin2(x) sin ( x * PI / 180.0 )
  8. using namespace std;
  9.  
  10. int main() {  
  11. 	int t;
  12. 	ll n, q;
  13. 	ll l, r;
  14.  
  15. 	cin >> t;
  16.  
  17. 	while(t--) {
  18. 		cin >> n >> q;
  19. 		char arr[n];
  20.  
  21. 		scanf("%s\n", &arr);
  22.  
  23. 		double cx[n], cy[n];
  24. 		cx[0] = cos2((arr[0]-'0') * 60);
  25. 		cy[0] = sin2((arr[0]-'0') * 60);
  26.  
  27. 		for (int i=1; i<n; i++) {
  28. 			int d = arr[i]-'0';
  29. 			cx[i] = cx[i-1] + cos2(d*60);
  30. 			cy[i] = cy[i-1] + sin2(d*60);	
  31. 		}
  32.  
  33. 		while(q--) {
  34. 			double x = 0, y = 0;
  35. 			cin >> l >> r;
  36.  
  37. 			l -= 1;
  38. 			r -= 1;
  39.  
  40. 			if (l >= n || r >= n || l < 0 || r < 0) {
  41. 			 //   cout << "-1\n";
  42. 			    continue;
  43. 			}
  44.  
  45. 			else {
  46.     			if (l != 0) {
  47.     				x = (cx[r] - cx[l-1]);
  48.     				y = (cy[r] - cy[l-1]);
  49.     			}
  50.  
  51.     			else {
  52.     				x = cx[r];
  53.     				y = cy[r];	
  54.     			}
  55.  
  56. 			    cout << x << setprecision(8) << " " << y << setprecision(8) << endl;
  57. 			}
  58. 		};
  59. 	}
  60.  
  61. 	return 0;
  62. }
Runtime error #stdin #stdout 0s 4408KB
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Standard input is empty
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Standard output is empty
https://ideone.com/2iENcd
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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