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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. map < long long , int > cnt;
  5.  
  6. class PlaneGame
  7. {
  8. 	public:	int bestShot(vector <int> x, vector <int> y)
  9. 	{
  10. 		int n = x.size();
  11. 		int ans = min(n, 1);
  12. 		for(int i = 0; i < n; i++)
  13. 			for(int j = i+1; j < n; j++)
  14. 			{
  15. 				long long dx = x[i] - x[j];
  16. 				long long dy = y[i] - y[j];
  17. 				long long dx2 = dy;
  18. 				long long dy2 = -dx;
  19. 				long long val = x[i] * dx2 + y[i] * dy2;
  20. 				int cntOnLine = 0;
  21. 				int maxPerpendicular = 0;
  22. 				cnt.clear();
  23. 				for(int k = 0; k < n; k++)
  24. 					if(x[k] * dx2 + y[k] * dy2 == val)
  25. 						cntOnLine ++;
  26. 					else
  27. 					{
  28. 						long long v = x[k] * dx + y[k] * dy;
  29. 						cnt[v] ++;
  30. 						maxPerpendicular = max(maxPerpendicular, cnt[v]);
  31. 					}
  32. 				ans = max(ans, maxPerpendicular + cntOnLine);
  33. 			}
  34. 		return ans;
  35. 	}
  36. };
  37.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
/usr/lib/gcc/i586-linux-gnu/5/../../../i386-linux-gnu/crt1.o: In function `_start':
(.text+0x18): undefined reference to `main'
collect2: error: ld returned 1 exit status
stdout
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Standard output is empty
https://ideone.com/UL5r6t
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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