062d1ffb7c 2016-03-28        kinaba: #include <iostream>
062d1ffb7c 2016-03-28        kinaba: #include <sstream>
062d1ffb7c 2016-03-28        kinaba: #include <iomanip>
062d1ffb7c 2016-03-28        kinaba: #include <vector>
062d1ffb7c 2016-03-28        kinaba: #include <string>
062d1ffb7c 2016-03-28        kinaba: #include <map>
062d1ffb7c 2016-03-28        kinaba: #include <set>
062d1ffb7c 2016-03-28        kinaba: #include <algorithm>
062d1ffb7c 2016-03-28        kinaba: #include <numeric>
062d1ffb7c 2016-03-28        kinaba: #include <iterator>
062d1ffb7c 2016-03-28        kinaba: #include <functional>
062d1ffb7c 2016-03-28        kinaba: #include <complex>
062d1ffb7c 2016-03-28        kinaba: #include <queue>
062d1ffb7c 2016-03-28        kinaba: #include <stack>
062d1ffb7c 2016-03-28        kinaba: #include <cmath>
062d1ffb7c 2016-03-28        kinaba: #include <cassert>
062d1ffb7c 2016-03-28        kinaba: #include <tuple>
062d1ffb7c 2016-03-28        kinaba: #include <cstring>
062d1ffb7c 2016-03-28        kinaba: using namespace std;
062d1ffb7c 2016-03-28        kinaba: typedef long long LL;
062d1ffb7c 2016-03-28        kinaba: typedef complex<double> CMP;
062d1ffb7c 2016-03-28        kinaba: 
062d1ffb7c 2016-03-28        kinaba: LL nei[2000][32];
062d1ffb7c 2016-03-28        kinaba: 
062d1ffb7c 2016-03-28        kinaba: class SmilesTheFriendshipUnicorn { public:
062d1ffb7c 2016-03-28        kinaba: 	string hasFriendshipChain(int N, vector <int> A, vector <int> B)
062d1ffb7c 2016-03-28        kinaba: 	{
062d1ffb7c 2016-03-28        kinaba: 		return solve(N, A, B) ? "Yay!" : ":(";
062d1ffb7c 2016-03-28        kinaba: 	}
062d1ffb7c 2016-03-28        kinaba: 
062d1ffb7c 2016-03-28        kinaba: 	bool solve(int N, const vector<int>& A, const vector<int>& B)
062d1ffb7c 2016-03-28        kinaba: 	{
062d1ffb7c 2016-03-28        kinaba: 		vector<vector<int>> G(N);
062d1ffb7c 2016-03-28        kinaba: 		for(int i=0; i<A.size(); ++i) {
062d1ffb7c 2016-03-28        kinaba: 			G[A[i]].push_back(B[i]);
062d1ffb7c 2016-03-28        kinaba: 			G[B[i]].push_back(A[i]);
062d1ffb7c 2016-03-28        kinaba: 		}
062d1ffb7c 2016-03-28        kinaba: 
062d1ffb7c 2016-03-28        kinaba: 		memset(&nei, 0, sizeof(nei));
062d1ffb7c 2016-03-28        kinaba: 
062d1ffb7c 2016-03-28        kinaba: 		for(int i=0; i<A.size(); ++i) {
062d1ffb7c 2016-03-28        kinaba: 			for(int u: G[A[i]])
062d1ffb7c 2016-03-28        kinaba: 				nei[i][u>>6] |= 1LL<<(u&0x3f);
062d1ffb7c 2016-03-28        kinaba: 			for(int u: G[B[i]])
062d1ffb7c 2016-03-28        kinaba: 				nei[i][u>>6] |= 1LL<<(u&0x3f);
062d1ffb7c 2016-03-28        kinaba: 			nei[i][A[i]>>6] &= ~(1LL<<(A[i]&0x3f));
062d1ffb7c 2016-03-28        kinaba: 			nei[i][B[i]>>6] &= ~(1LL<<(B[i]&0x3f));
062d1ffb7c 2016-03-28        kinaba: 		}
062d1ffb7c 2016-03-28        kinaba: 
062d1ffb7c 2016-03-28        kinaba: 		for(int i=0; i<A.size(); ++i)
062d1ffb7c 2016-03-28        kinaba: 		for(int k=i+1; k<A.size(); ++k)
062d1ffb7c 2016-03-28        kinaba: 		if(A[i]!=A[k] && A[i]!=B[k] && B[i]!=A[k] && B[i]!=B[k])
062d1ffb7c 2016-03-28        kinaba: 			for(int v=0; v<32; ++v)
062d1ffb7c 2016-03-28        kinaba: 				if(nei[i][v] & nei[k][v])
062d1ffb7c 2016-03-28        kinaba: 					return true;
062d1ffb7c 2016-03-28        kinaba: 		return false;
062d1ffb7c 2016-03-28        kinaba: 	}
062d1ffb7c 2016-03-28        kinaba: };
062d1ffb7c 2016-03-28        kinaba: 
062d1ffb7c 2016-03-28        kinaba: // BEGIN CUT HERE
062d1ffb7c 2016-03-28        kinaba: #include <ctime>
062d1ffb7c 2016-03-28        kinaba: double start_time; string timer()
062d1ffb7c 2016-03-28        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
062d1ffb7c 2016-03-28        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
062d1ffb7c 2016-03-28        kinaba:  { os << "{ ";
062d1ffb7c 2016-03-28        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
062d1ffb7c 2016-03-28        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
062d1ffb7c 2016-03-28        kinaba: void verify_case(const string& Expected, const string& Received) {
062d1ffb7c 2016-03-28        kinaba:  bool ok = (Expected == Received);
062d1ffb7c 2016-03-28        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
062d1ffb7c 2016-03-28        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
062d1ffb7c 2016-03-28        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
062d1ffb7c 2016-03-28        kinaba: #define END	 verify_case(_, SmilesTheFriendshipUnicorn().hasFriendshipChain(N, A, B));}
062d1ffb7c 2016-03-28        kinaba: int main(){
062d1ffb7c 2016-03-28        kinaba: 
062d1ffb7c 2016-03-28        kinaba: CASE(0)
062d1ffb7c 2016-03-28        kinaba: 	int N = 5;
062d1ffb7c 2016-03-28        kinaba: 	int A_[] = {0, 1, 2, 3};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> A(A_, A_+sizeof(A_)/sizeof(*A_));
062d1ffb7c 2016-03-28        kinaba: 	int B_[] = {1, 2, 3, 4};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> B(B_, B_+sizeof(B_)/sizeof(*B_));
062d1ffb7c 2016-03-28        kinaba: 	string _ = "Yay!";
062d1ffb7c 2016-03-28        kinaba: END
062d1ffb7c 2016-03-28        kinaba: CASE(1)
062d1ffb7c 2016-03-28        kinaba: 	int N = 5;
062d1ffb7c 2016-03-28        kinaba: 	int A_[] = {0, 1, 2, 3, 1};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> A(A_, A_+sizeof(A_)/sizeof(*A_));
062d1ffb7c 2016-03-28        kinaba: 	int B_[] = {1, 2, 3, 0, 4};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> B(B_, B_+sizeof(B_)/sizeof(*B_));
062d1ffb7c 2016-03-28        kinaba: 	string _ = "Yay!";
062d1ffb7c 2016-03-28        kinaba: END
062d1ffb7c 2016-03-28        kinaba: CASE(2)
062d1ffb7c 2016-03-28        kinaba: 	int N = 6;
062d1ffb7c 2016-03-28        kinaba: 	int A_[] = {0, 0, 0, 0, 0};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> A(A_, A_+sizeof(A_)/sizeof(*A_));
062d1ffb7c 2016-03-28        kinaba: 	int B_[] = {1, 2, 3, 4, 5};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> B(B_, B_+sizeof(B_)/sizeof(*B_));
062d1ffb7c 2016-03-28        kinaba: 	string _ = ":(";
062d1ffb7c 2016-03-28        kinaba: END
062d1ffb7c 2016-03-28        kinaba: CASE(3)
062d1ffb7c 2016-03-28        kinaba: 	int N = 8;
062d1ffb7c 2016-03-28        kinaba: 	int A_[] = {1, 3, 4, 3, 4, 3, 0, 2};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> A(A_, A_+sizeof(A_)/sizeof(*A_));
062d1ffb7c 2016-03-28        kinaba: 	int B_[] = {7, 7, 7, 4, 6, 5, 4, 7};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> B(B_, B_+sizeof(B_)/sizeof(*B_));
062d1ffb7c 2016-03-28        kinaba: 	string _ = "Yay!";
062d1ffb7c 2016-03-28        kinaba: END
062d1ffb7c 2016-03-28        kinaba: CASE(4)
062d1ffb7c 2016-03-28        kinaba: 	int N = 7;
062d1ffb7c 2016-03-28        kinaba: 	int A_[] = {0, 1, 1, 5, 4, 5};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> A(A_, A_+sizeof(A_)/sizeof(*A_));
062d1ffb7c 2016-03-28        kinaba: 	int B_[] = {5, 2, 3, 6, 1, 1};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> B(B_, B_+sizeof(B_)/sizeof(*B_));
062d1ffb7c 2016-03-28        kinaba: 	string _ = ":(";
062d1ffb7c 2016-03-28        kinaba: END
062d1ffb7c 2016-03-28        kinaba: CASE(5)
062d1ffb7c 2016-03-28        kinaba: 	int N = 42;
062d1ffb7c 2016-03-28        kinaba: 	int A_[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41}
062d1ffb7c 2016-03-28        kinaba: ;
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> A(A_, A_+sizeof(A_)/sizeof(*A_));
062d1ffb7c 2016-03-28        kinaba: 	int B_[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 0};
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> B(B_, B_+sizeof(B_)/sizeof(*B_));
062d1ffb7c 2016-03-28        kinaba: 	string _ = "Yay!";
062d1ffb7c 2016-03-28        kinaba: END
062d1ffb7c 2016-03-28        kinaba: /*
062d1ffb7c 2016-03-28        kinaba: CASE(6)
062d1ffb7c 2016-03-28        kinaba: 	int N = ;
062d1ffb7c 2016-03-28        kinaba: 	int A_[] = ;
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> A(A_, A_+sizeof(A_)/sizeof(*A_));
062d1ffb7c 2016-03-28        kinaba: 	int B_[] = ;
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> B(B_, B_+sizeof(B_)/sizeof(*B_));
062d1ffb7c 2016-03-28        kinaba: 	string _ = ;
062d1ffb7c 2016-03-28        kinaba: END
062d1ffb7c 2016-03-28        kinaba: CASE(7)
062d1ffb7c 2016-03-28        kinaba: 	int N = ;
062d1ffb7c 2016-03-28        kinaba: 	int A_[] = ;
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> A(A_, A_+sizeof(A_)/sizeof(*A_));
062d1ffb7c 2016-03-28        kinaba: 	int B_[] = ;
062d1ffb7c 2016-03-28        kinaba: 	  vector <int> B(B_, B_+sizeof(B_)/sizeof(*B_));
062d1ffb7c 2016-03-28        kinaba: 	string _ = ;
062d1ffb7c 2016-03-28        kinaba: END
062d1ffb7c 2016-03-28        kinaba: */
062d1ffb7c 2016-03-28        kinaba: }
062d1ffb7c 2016-03-28        kinaba: // END CUT HERE