2024b9fa5d 2016-01-23        kinaba: #include <iostream>
2024b9fa5d 2016-01-23        kinaba: #include <sstream>
2024b9fa5d 2016-01-23        kinaba: #include <iomanip>
2024b9fa5d 2016-01-23        kinaba: #include <vector>
2024b9fa5d 2016-01-23        kinaba: #include <string>
2024b9fa5d 2016-01-23        kinaba: #include <map>
2024b9fa5d 2016-01-23        kinaba: #include <set>
2024b9fa5d 2016-01-23        kinaba: #include <algorithm>
2024b9fa5d 2016-01-23        kinaba: #include <numeric>
2024b9fa5d 2016-01-23        kinaba: #include <iterator>
2024b9fa5d 2016-01-23        kinaba: #include <functional>
2024b9fa5d 2016-01-23        kinaba: #include <complex>
2024b9fa5d 2016-01-23        kinaba: #include <queue>
2024b9fa5d 2016-01-23        kinaba: #include <stack>
2024b9fa5d 2016-01-23        kinaba: #include <cmath>
2024b9fa5d 2016-01-23        kinaba: #include <cassert>
2024b9fa5d 2016-01-23        kinaba: #include <tuple>
2024b9fa5d 2016-01-23        kinaba: using namespace std;
2024b9fa5d 2016-01-23        kinaba: typedef long long LL;
2024b9fa5d 2016-01-23        kinaba: typedef complex<double> CMP;
2024b9fa5d 2016-01-23        kinaba: 
2024b9fa5d 2016-01-23        kinaba: static const int MODVAL = 1000000007;
2024b9fa5d 2016-01-23        kinaba: class BagAndCards { public:
2024b9fa5d 2016-01-23        kinaba: 	int getHash(int n, int m, int x, int a, int b, int c, string isGood)
2024b9fa5d 2016-01-23        kinaba: 	{
2024b9fa5d 2016-01-23        kinaba: 		vector<vector<int>> count(n, vector<int>(m, 0));
2024b9fa5d 2016-01-23        kinaba: 		for(int i=0; i<n; ++i)
2024b9fa5d 2016-01-23        kinaba: 		for(int j=0; j<m; ++j) {
2024b9fa5d 2016-01-23        kinaba: 			count[i][j] = x;
2024b9fa5d 2016-01-23        kinaba: 			x = int(((LL(x) * a + b) ^ c) % MODVAL);
2024b9fa5d 2016-01-23        kinaba: 		}
2024b9fa5d 2016-01-23        kinaba: 
2024b9fa5d 2016-01-23        kinaba: 		int total_ans = 0;
2024b9fa5d 2016-01-23        kinaba: 		for(int i=0; i<n; ++i)
2024b9fa5d 2016-01-23        kinaba: 		{
2024b9fa5d 2016-01-23        kinaba: 			vector<LL> mult(m);
2024b9fa5d 2016-01-23        kinaba: 			for(int c1=0; c1<m; ++c1)
2024b9fa5d 2016-01-23        kinaba: 			for(int c2=0; c2<m; ++c2)
2024b9fa5d 2016-01-23        kinaba: 				if(isGood[c1+c2]=='Y')
2024b9fa5d 2016-01-23        kinaba: 					mult[c2] += count[i][c1];
2024b9fa5d 2016-01-23        kinaba: 			for(int c=0; c<m; ++c)
2024b9fa5d 2016-01-23        kinaba: 				mult[c] %= MODVAL;
2024b9fa5d 2016-01-23        kinaba: 
2024b9fa5d 2016-01-23        kinaba: 			for(int k=i+1; k<n; ++k)
2024b9fa5d 2016-01-23        kinaba: 			{
2024b9fa5d 2016-01-23        kinaba: 				LL ans = 0;
2024b9fa5d 2016-01-23        kinaba: 				for(int c=0; c<m; ++c)
2024b9fa5d 2016-01-23        kinaba: 					ans += count[k][c] * mult[c] % MODVAL;
2024b9fa5d 2016-01-23        kinaba: 				total_ans ^= int(ans % MODVAL);
2024b9fa5d 2016-01-23        kinaba: 			}
2024b9fa5d 2016-01-23        kinaba: 		}
2024b9fa5d 2016-01-23        kinaba: 		return total_ans;
2024b9fa5d 2016-01-23        kinaba: 	}
2024b9fa5d 2016-01-23        kinaba: };
2024b9fa5d 2016-01-23        kinaba: 
2024b9fa5d 2016-01-23        kinaba: // BEGIN CUT HERE
2024b9fa5d 2016-01-23        kinaba: #include <ctime>
2024b9fa5d 2016-01-23        kinaba: double start_time; string timer()
2024b9fa5d 2016-01-23        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
2024b9fa5d 2016-01-23        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
2024b9fa5d 2016-01-23        kinaba:  { os << "{ ";
2024b9fa5d 2016-01-23        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
2024b9fa5d 2016-01-23        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
2024b9fa5d 2016-01-23        kinaba: void verify_case(const int& Expected, const int& Received) {
2024b9fa5d 2016-01-23        kinaba:  bool ok = (Expected == Received);
2024b9fa5d 2016-01-23        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
2024b9fa5d 2016-01-23        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
2024b9fa5d 2016-01-23        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
2024b9fa5d 2016-01-23        kinaba: #define END	 verify_case(_, BagAndCards().getHash(n, m, x, a, b, c, isGood));}
2024b9fa5d 2016-01-23        kinaba: int main(){
2024b9fa5d 2016-01-23        kinaba: 
2024b9fa5d 2016-01-23        kinaba: CASE(0)
2024b9fa5d 2016-01-23        kinaba: 	int n = 2;
2024b9fa5d 2016-01-23        kinaba: 	int m = 4;
2024b9fa5d 2016-01-23        kinaba: 	int x = 1;
2024b9fa5d 2016-01-23        kinaba: 	int a = 1;
2024b9fa5d 2016-01-23        kinaba: 	int b = 0;
2024b9fa5d 2016-01-23        kinaba: 	int c = 0;
2024b9fa5d 2016-01-23        kinaba: 	string isGood = "NNYYNYN";
2024b9fa5d 2016-01-23        kinaba: 	int _ = 9;
2024b9fa5d 2016-01-23        kinaba: END
2024b9fa5d 2016-01-23        kinaba: CASE(1)
2024b9fa5d 2016-01-23        kinaba: 	int n = 3;
2024b9fa5d 2016-01-23        kinaba: 	int m = 5;
2024b9fa5d 2016-01-23        kinaba: 	int x = 1;
2024b9fa5d 2016-01-23        kinaba: 	int a = 1;
2024b9fa5d 2016-01-23        kinaba: 	int b = 1;
2024b9fa5d 2016-01-23        kinaba: 	int c = 2;
2024b9fa5d 2016-01-23        kinaba: 	string isGood = "NNYYNYNYN";
2024b9fa5d 2016-01-23        kinaba: 	int _ = 1532;
2024b9fa5d 2016-01-23        kinaba: END
2024b9fa5d 2016-01-23        kinaba: CASE(2)
2024b9fa5d 2016-01-23        kinaba: 	int n = 10;
2024b9fa5d 2016-01-23        kinaba: 	int m = 20;
2024b9fa5d 2016-01-23        kinaba: 	int x = 111;
2024b9fa5d 2016-01-23        kinaba: 	int a = 222;
2024b9fa5d 2016-01-23        kinaba: 	int b = 333;
2024b9fa5d 2016-01-23        kinaba: 	int c = 444;
2024b9fa5d 2016-01-23        kinaba: 	string isGood = "NNNNNYYYNNNYYYYYYNNYYYYNNNNYNNYYYNNNYYN" ;
2024b9fa5d 2016-01-23        kinaba: 	int _ = 450750683;
2024b9fa5d 2016-01-23        kinaba: END
2024b9fa5d 2016-01-23        kinaba: CASE(3)
2024b9fa5d 2016-01-23        kinaba: 	int n = 2;
2024b9fa5d 2016-01-23        kinaba: 	int m = 2;
2024b9fa5d 2016-01-23        kinaba: 	int x = 1;
2024b9fa5d 2016-01-23        kinaba: 	int a = 1;
2024b9fa5d 2016-01-23        kinaba: 	int b = 0;
2024b9fa5d 2016-01-23        kinaba: 	int c = 0;
2024b9fa5d 2016-01-23        kinaba: 	string isGood = "NNY";
2024b9fa5d 2016-01-23        kinaba: 	int _ = 1;
2024b9fa5d 2016-01-23        kinaba: END
2024b9fa5d 2016-01-23        kinaba: /*
2024b9fa5d 2016-01-23        kinaba: CASE(4)
2024b9fa5d 2016-01-23        kinaba: 	int n = ;
2024b9fa5d 2016-01-23        kinaba: 	int m = ;
2024b9fa5d 2016-01-23        kinaba: 	int x = ;
2024b9fa5d 2016-01-23        kinaba: 	int a = ;
2024b9fa5d 2016-01-23        kinaba: 	int b = ;
2024b9fa5d 2016-01-23        kinaba: 	int c = ;
2024b9fa5d 2016-01-23        kinaba: 	string isGood = ;
2024b9fa5d 2016-01-23        kinaba: 	int _ = ;
2024b9fa5d 2016-01-23        kinaba: END
2024b9fa5d 2016-01-23        kinaba: CASE(5)
2024b9fa5d 2016-01-23        kinaba: 	int n = ;
2024b9fa5d 2016-01-23        kinaba: 	int m = ;
2024b9fa5d 2016-01-23        kinaba: 	int x = ;
2024b9fa5d 2016-01-23        kinaba: 	int a = ;
2024b9fa5d 2016-01-23        kinaba: 	int b = ;
2024b9fa5d 2016-01-23        kinaba: 	int c = ;
2024b9fa5d 2016-01-23        kinaba: 	string isGood = ;
2024b9fa5d 2016-01-23        kinaba: 	int _ = ;
2024b9fa5d 2016-01-23        kinaba: END
2024b9fa5d 2016-01-23        kinaba: */
2024b9fa5d 2016-01-23        kinaba: }
2024b9fa5d 2016-01-23        kinaba: // END CUT HERE