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  1. // iostream is too mainstream
  2. #include <cstdio>
  3. // bitch please
  4. #include <iostream>
  5. #include <algorithm>
  6. #include <cstdlib>
  7. #include <vector>
  8. #include <set>
  9. #include <map>
  10. #include <queue>
  11. #include <stack>
  12. #include <list>
  13. #include <cmath>
  14. #include <iomanip>
  15. #define dibs reserve
  16. #define OVER9000 1234567890123456789LL
  17. #define ALL_THE(CAKE,LIE) for(auto LIE =CAKE.begin(); LIE != CAKE.end(); LIE++)
  18. #define tisic 47
  19. #define soclose 1e-8
  20. #define chocolate win
  21. // so much chocolate
  22. #define patkan 9
  23. #define ff first
  24. #define ss second
  25. #define abs(x) ((x < 0)?-(x):x)
  26. #define uint unsigned int
  27. #define dbl long double
  28. using namespace std;
  29. // mylittledoge
  30.  
  31. int main() {
  32. 	cin.sync_with_stdio(0);
  33. 	cin.tie(0);
  34. 	int T;
  35. 	cin >> T;
  36. 	for(int t =0; t < T; t++) {
  37. 		int N,M;
  38. 		cin >> N >> M;
  39. 		vector<string> A(N);
  40. 		vector<int> B(N);
  41. 		for(int i =0; i < N; i++) cin >> A[i] >> B[i];
  42. 		map<long long,long long> S;
  43. 		vector<long long> hsh(1<<(M/2));
  44. 		for(int a =0; a < (1<<(M/2)); a++) {
  45. 			long long x =0;
  46. 			bool ok =true;
  47. 			for(int i =0; i < N; i++) {
  48. 				int y =B[i];
  49. 				for(int j =0; j < M/2; j++) 
  50. 					if((A[i][j] == '1') == ((a>>j)&1)) y--;
  51. 				if(y < 0) ok =false;
  52. 				x =x*(M+1)+y;}
  53. 			if(!ok) x =-1;
  54. 			hsh[a] =x;
  55. 			S[x] +=1;}
  56.  
  57. 		int ans =-1;
  58. 		long long ansP =0;
  59. 		for(int a =0; a < (1<<(M-M/2)); a++) {
  60. 			long long x =0;
  61. 			for(int i =0; i < N; i++) {
  62. 				int y =0;
  63. 				for(int j =M/2; j < M; j++) 
  64. 					if((A[i][j] == '1') == ((a>>(j-M/2))&1)) y++;
  65. 				x =x*(M+1)+y;}
  66. 			ansP +=S[x];
  67. 			if(ans == -1 && S[x] > 0) {
  68. 				for(int i =0; i < (1<<(M/2)); i++) 
  69. 					if(x == hsh[i]) ans =i+(1<<(M/2))*a;
  70. 				}
  71. 			}
  72.  
  73. 		if(ansP != 1) cout << ansP << " solutions";
  74. 		else for(int i =0; i < M; i++) cout << ((ans>>i)&1);
  75. 		cout << "\n";}
  76. 	return 0;}
  77.  
  78. // look at my code
  79. // my code is amazing
Success #stdin #stdout 0s 3480KB
comments (?)
stdin 
3
3 5
01101 4
10100 3
00011 3
3 5
01101 0
10100 3
00011 2
4 4
0000 2
1010 2
0101 2
1111 2
stdout 
00101
0 solutions
4 solutions
https://ideone.com/4mJcxj
CT S02E08 K
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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