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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4. #define out(a) copy(a.begin(),a.end(),ostream_iterator<int>(cout," "))
  5. bool vist[501][501][501];
  6.  
  7. class BearPlaysDiv2 {
  8. public:
  9. 	string equalPiles(int A, int B, int C) {
  10. 		queue<int> que;
  11. 		int arr[] = { A, B, C }, tmp[3];
  12. 		sort(arr, arr + 3);
  13. 		for (int i = 0; i < 3; ++i)
  14. 			que.push(arr[i]);
  15. 		vist[arr[0]][arr[1]][arr[2]] = 1;
  16. 		while (que.size()) {
  17. 			for (int i = 0; i < 3; ++i) {
  18. 				arr[i] = que.front();
  19. 				que.pop();
  20. 			}
  21. 			if (arr[0] == arr[1] && arr[0] == arr[2])
  22. 				return "possible";
  23. 			for (int i = 1; i < 3; ++i) {
  24. 				memcpy(tmp, arr, sizeof tmp);
  25. 				tmp[i] -= tmp[i - 1];
  26. 				tmp[i - 1] *= 2;
  27. 				sort(tmp, tmp + 3);
  28. 				if (vist[tmp[0]][tmp[1]][tmp[2]])
  29. 					continue;
  30. 				vist[tmp[0]][tmp[1]][tmp[2]] = 1;
  31. 				for (int i = 0; i < 3; ++i)
  32. 					que.push(tmp[i]);
  33. 			}
  34. 			memcpy(tmp, arr, sizeof tmp);
  35. 			tmp[2] -= tmp[0];
  36. 			tmp[0] *= 2;
  37. 			sort(tmp, tmp + 3);
  38. 			if (vist[tmp[0]][tmp[1]][tmp[2]])
  39. 				continue;
  40. 			vist[tmp[0]][tmp[1]][tmp[2]] = 1;
  41. 			for (int i = 0; i < 3; ++i)
  42. 				que.push(tmp[i]);
  43. 		}
  44. 		return "impossible";
  45. 	}
  46. };
  47.  
  48.  
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/oHbmD0
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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