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  1. #include <iostream>
  2. #include <sstream>
  3. #include <fstream>
  4. #include <string>
  5. #include <vector>
  6. #include <deque>
  7. #include <queue>
  8. #include <stack>
  9. #include <set>
  10. #include <map>
  11. #include <algorithm>
  12. #include <functional>
  13. #include <utility>
  14. #include <bitset>
  15. #include <cmath>
  16. #include <cstdlib>
  17. #include <ctime>
  18. #include <cstdio>
  19.  
  20. using namespace std;
  21.  
  22. #define REP(i,n) for((i)=0;(i)<(int)(n);(i)++)
  23. #define snuke(c,itr) for(__typeof((c).begin()) itr=(c).begin();itr!=(c).end();itr++)
  24.  
  25. int N;
  26. int a[60];
  27. int f[60][60];
  28.  
  29. class MultiplicationTable{
  30. 	public:
  31.  
  32. 	vector <int> getMultiplicationTable(vector <int> g){
  33. 		int i,j,k;
  34.  
  35. 		N = g.size();
  36. 		REP(i,N) a[i] = -1;
  37.  
  38. 		int x = 0;
  39. 		for(i=1;;i++){
  40. 			if(a[x] != -1) break;
  41. 			a[x] = i;
  42. 			x = g[x];
  43. 		}
  44.  
  45. 		REP(i,N+10) REP(j,N) if(a[j] == -1 && a[g[j]] != -1) a[j] = a[g[j]] - 1;
  46.  
  47. 		REP(i,N){
  48. 			if(a[i] == -1){
  49. 				REP(j,N) f[i][j] = i;
  50. 			} else {
  51. 				REP(j,N){
  52. 					int tmp = j;
  53. 					REP(k,a[i]) tmp = g[tmp];
  54. 					f[i][j] = tmp;
  55. 				}
  56. 			}
  57. 		}
  58.  
  59. 		bool good = true;
  60. 		REP(i,N) REP(j,N) REP(k,N) if(f[f[i][j]][k] != f[i][f[j][k]]) good = false;
  61.  
  62. 		vector <int> ans;
  63. 		if(good){
  64. 			REP(i,N) REP(j,N) ans.push_back(f[i][j]);
  65. 		} else {
  66. 			ans.push_back(-1);
  67. 		}
  68.  
  69. 		return ans;
  70. 	}
  71.  
  72. };
  73.  
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/4.9/../../../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/b4v3nY
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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