4fd800b3a8 2011-02-23 kinaba: #include <iostream> 4fd800b3a8 2011-02-23 kinaba: #include <sstream> 4fd800b3a8 2011-02-23 kinaba: #include <iomanip> 4fd800b3a8 2011-02-23 kinaba: #include <vector> 4fd800b3a8 2011-02-23 kinaba: #include <string> 4fd800b3a8 2011-02-23 kinaba: #include <map> 4fd800b3a8 2011-02-23 kinaba: #include <set> 4fd800b3a8 2011-02-23 kinaba: #include <algorithm> 4fd800b3a8 2011-02-23 kinaba: #include <numeric> 4fd800b3a8 2011-02-23 kinaba: #include <iterator> 4fd800b3a8 2011-02-23 kinaba: #include <functional> 4fd800b3a8 2011-02-23 kinaba: #include <complex> 4fd800b3a8 2011-02-23 kinaba: #include <queue> 4fd800b3a8 2011-02-23 kinaba: #include <stack> 4fd800b3a8 2011-02-23 kinaba: #include <cmath> 4fd800b3a8 2011-02-23 kinaba: #include <cassert> 4fd800b3a8 2011-02-23 kinaba: #include <cstring> 4fd800b3a8 2011-02-23 kinaba: using namespace std; 4fd800b3a8 2011-02-23 kinaba: typedef long long LL; 4fd800b3a8 2011-02-23 kinaba: typedef complex<double> CMP; 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: class LongLongNim { public: 4fd800b3a8 2011-02-23 kinaba: int numberOfWins(int maxN, vector <int> moves) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: int FULL = (1 << *max_element(moves.begin(), moves.end())) - 1; 4fd800b3a8 2011-02-23 kinaba: int MASK = 0; 4fd800b3a8 2011-02-23 kinaba: for(int i=0; i<moves.size(); ++i) 4fd800b3a8 2011-02-23 kinaba: MASK |= 1 << (moves[i]-1); 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: vector<int> ss; 4fd800b3a8 2011-02-23 kinaba: vector<int> visited(FULL+1, -1); 4fd800b3a8 2011-02-23 kinaba: for(int i=1,s=1; i<=maxN; ++i) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: s = (s<<1 | ((~s&MASK)==MASK)) & FULL; 4fd800b3a8 2011-02-23 kinaba: if( visited[s] >= 0 ) 4fd800b3a8 2011-02-23 kinaba: return countBits(ss, visited[s], ss.size(), maxN); 4fd800b3a8 2011-02-23 kinaba: else 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: visited[s] = ss.size(); 4fd800b3a8 2011-02-23 kinaba: ss.push_back(s&1); 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: return countBits(ss, 0, maxN, maxN); 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: int countBits(const vector<int>& b, int lb, int le, int N) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: // Given an infinite seq b[0] ... b[lb-1] (b[lb] ... b[le-1])*, 4fd800b3a8 2011-02-23 kinaba: // compute \Sigma b[0..N) 4fd800b3a8 2011-02-23 kinaba: int sum = 0; 4fd800b3a8 2011-02-23 kinaba: for(int i=0; i<lb; ++i) 4fd800b3a8 2011-02-23 kinaba: sum += b[i]; 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: N -= lb; 4fd800b3a8 2011-02-23 kinaba: int ll = le - lb; 4fd800b3a8 2011-02-23 kinaba: int Q = N/ll; 4fd800b3a8 2011-02-23 kinaba: int R = N%ll; 4fd800b3a8 2011-02-23 kinaba: for(int i=lb; i<le; ++i) 4fd800b3a8 2011-02-23 kinaba: sum += b[i] * Q; 4fd800b3a8 2011-02-23 kinaba: for(int i=lb; i<lb+R; ++i) 4fd800b3a8 2011-02-23 kinaba: sum += b[i]; 4fd800b3a8 2011-02-23 kinaba: return sum; 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: }; 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: // BEGIN CUT HERE 4fd800b3a8 2011-02-23 kinaba: #include <ctime> 4fd800b3a8 2011-02-23 kinaba: double start_time; string timer() 4fd800b3a8 2011-02-23 kinaba: { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); } 4fd800b3a8 2011-02-23 kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v) 4fd800b3a8 2011-02-23 kinaba: { os << "{ "; 4fd800b3a8 2011-02-23 kinaba: for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it) 4fd800b3a8 2011-02-23 kinaba: os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; } 4fd800b3a8 2011-02-23 kinaba: void verify_case(const int& Expected, const int& Received) { 4fd800b3a8 2011-02-23 kinaba: bool ok = (Expected == Received); 4fd800b3a8 2011-02-23 kinaba: if(ok) cerr << "PASSED" << timer() << endl; else { cerr << "FAILED" << timer() << endl; 4fd800b3a8 2011-02-23 kinaba: cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } } 4fd800b3a8 2011-02-23 kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock(); 4fd800b3a8 2011-02-23 kinaba: #define END verify_case(_, LongLongNim().numberOfWins(maxN, moves));} 4fd800b3a8 2011-02-23 kinaba: int main(){ 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: CASE(0) 4fd800b3a8 2011-02-23 kinaba: int maxN = 20; 4fd800b3a8 2011-02-23 kinaba: int moves_[] = {1,2,3}; 4fd800b3a8 2011-02-23 kinaba: vector <int> moves(moves_, moves_+sizeof(moves_)/sizeof(*moves_)); 4fd800b3a8 2011-02-23 kinaba: int _ = 5; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(1) 4fd800b3a8 2011-02-23 kinaba: int maxN = 999; 4fd800b3a8 2011-02-23 kinaba: int moves_[] = {1}; 4fd800b3a8 2011-02-23 kinaba: vector <int> moves(moves_, moves_+sizeof(moves_)/sizeof(*moves_)); 4fd800b3a8 2011-02-23 kinaba: int _ = 499; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(3) 4fd800b3a8 2011-02-23 kinaba: int maxN = 6543; 4fd800b3a8 2011-02-23 kinaba: int moves_[] = {2,4,7,11,20}; 4fd800b3a8 2011-02-23 kinaba: vector <int> moves(moves_, moves_+sizeof(moves_)/sizeof(*moves_)); 4fd800b3a8 2011-02-23 kinaba: int _ = 1637; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(2) 4fd800b3a8 2011-02-23 kinaba: int maxN = 1000000000; 4fd800b3a8 2011-02-23 kinaba: int moves_[] = {1,2}; 4fd800b3a8 2011-02-23 kinaba: vector <int> moves(moves_, moves_+sizeof(moves_)/sizeof(*moves_)); 4fd800b3a8 2011-02-23 kinaba: int _ = 333333333; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: /* 4fd800b3a8 2011-02-23 kinaba: CASE(4) 4fd800b3a8 2011-02-23 kinaba: int maxN = ; 4fd800b3a8 2011-02-23 kinaba: int moves_[] = ; 4fd800b3a8 2011-02-23 kinaba: vector <int> moves(moves_, moves_+sizeof(moves_)/sizeof(*moves_)); 4fd800b3a8 2011-02-23 kinaba: int _ = ; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(5) 4fd800b3a8 2011-02-23 kinaba: int maxN = ; 4fd800b3a8 2011-02-23 kinaba: int moves_[] = ; 4fd800b3a8 2011-02-23 kinaba: vector <int> moves(moves_, moves_+sizeof(moves_)/sizeof(*moves_)); 4fd800b3a8 2011-02-23 kinaba: int _ = ; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: */ 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: // END CUT HERE