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  1. //Kaori Miyazono, did I reach you ?
  2. //"I can't die because... I have to protect you." -Asuna Yuuki
  3.  
  4. #include <bits/stdc++.h>
  5. using namespace std;
  6.  
  7. double p, q, r, s, t, u;
  8. double eps = 1e-6;
  9.  
  10. double P(double x){
  11. 	return p / exp(x) + q * sin(x) + r * cos(x) + s * tan(x) + t * x * x + u;	
  12. }
  13.  
  14. int main(){
  15. 	//ios::sync_with_stdio(0); cin.tie(0);	
  16. 	while(cin >> p >> q >> r >> s >> t >> u){ 
  17. 		double l = 0, r = 1;
  18. 		if (P(l) < 0 && P(r) < 0){
  19. 			cout << "No solution\n";
  20. 		}
  21. 		else if (P(l) > 0 && P(r) > 0){
  22. 			cout << "No solution\n";
  23. 		}
  24. 		else{
  25. 			while(abs(r - l) > eps){
  26. 				double mid = (l + r) / 2.0;
  27. 				if (P(mid) < 0){
  28. 					r = mid;
  29. 				}
  30. 				else{
  31. 					l = mid;
  32. 				}
  33. 			}
  34. 			printf("%.4f\n", l);
  35. 		}
  36. 	}			
  37. 	return 0;
  38. }	
  39.  
  40.  
  41.  
  42.  
  43.  
Success #stdin #stdout 0s 4516KB
comments (?)
stdin
copy 
16 -1 9 -11 -14 18
11 -18 11 -7 -6 16
12 -3 1 -4 -18 19
12 -2 10 -3 -8 1
6 -15 11 -19 -7 -13
9 -7 10 0 -4 -1
15 -1 18 -8 -7 5
20 -6 6 -12 -18 -14
5 -5 3 -10 -15 -1
12 -15 18 -9 -4 -19
stdout
copy 
0.9580
0.8911
0.9489
0.9074
0.0976
0.9066
0.9991
0.2879
0.2879
0.2879
https://ideone.com/DbRjuh
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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