d3b1273780 2014-06-12        kinaba: #include <iostream>
d3b1273780 2014-06-12        kinaba: #include <sstream>
d3b1273780 2014-06-12        kinaba: #include <iomanip>
d3b1273780 2014-06-12        kinaba: #include <vector>
d3b1273780 2014-06-12        kinaba: #include <string>
d3b1273780 2014-06-12        kinaba: #include <map>
d3b1273780 2014-06-12        kinaba: #include <set>
d3b1273780 2014-06-12        kinaba: #include <algorithm>
d3b1273780 2014-06-12        kinaba: #include <numeric>
d3b1273780 2014-06-12        kinaba: #include <iterator>
d3b1273780 2014-06-12        kinaba: #include <functional>
d3b1273780 2014-06-12        kinaba: #include <complex>
d3b1273780 2014-06-12        kinaba: #include <queue>
d3b1273780 2014-06-12        kinaba: #include <stack>
d3b1273780 2014-06-12        kinaba: #include <cmath>
d3b1273780 2014-06-12        kinaba: #include <cassert>
d3b1273780 2014-06-12        kinaba: #include <tuple>
d3b1273780 2014-06-12        kinaba: using namespace std;
d3b1273780 2014-06-12        kinaba: typedef long long LL;
d3b1273780 2014-06-12        kinaba: typedef complex<double> CMP;
d3b1273780 2014-06-12        kinaba: 
d3b1273780 2014-06-12        kinaba: class SwitchingGame { public:
d3b1273780 2014-06-12        kinaba: 	int timeToWin(vector <string> states)
d3b1273780 2014-06-12        kinaba: 	{
d3b1273780 2014-06-12        kinaba: 		const int W = states[0].size();
d3b1273780 2014-06-12        kinaba: 		string cur(W, '-');
d3b1273780 2014-06-12        kinaba: 
d3b1273780 2014-06-12        kinaba: 		int sec = 0;
d3b1273780 2014-06-12        kinaba: 		for(int i=0; i<states.size(); ++i)
d3b1273780 2014-06-12        kinaba: 		{
d3b1273780 2014-06-12        kinaba: 			bool need_flip_to_minus = false;
d3b1273780 2014-06-12        kinaba: 			bool need_flip_to_plus = false;
d3b1273780 2014-06-12        kinaba: 			for(int k=0; k<W; ++k) {
d3b1273780 2014-06-12        kinaba: 				if(states[i][k]=='-' && cur[k]=='+')
d3b1273780 2014-06-12        kinaba: 					need_flip_to_minus = true;
d3b1273780 2014-06-12        kinaba: 				if(states[i][k]=='+' && cur[k]=='-')
d3b1273780 2014-06-12        kinaba: 					need_flip_to_plus = true;
d3b1273780 2014-06-12        kinaba: 			}
d3b1273780 2014-06-12        kinaba: 
d3b1273780 2014-06-12        kinaba: 			for(int k=0; k<W; ++k) {
d3b1273780 2014-06-12        kinaba: 				switch(states[i][k])
d3b1273780 2014-06-12        kinaba: 				{
d3b1273780 2014-06-12        kinaba: 				case '-':
d3b1273780 2014-06-12        kinaba: 					cur[k] = '-';
d3b1273780 2014-06-12        kinaba: 					break;
d3b1273780 2014-06-12        kinaba: 				case '+':
d3b1273780 2014-06-12        kinaba: 					cur[k] = '+';
d3b1273780 2014-06-12        kinaba: 					break;
d3b1273780 2014-06-12        kinaba: 				case '?':
d3b1273780 2014-06-12        kinaba: 					for(int j=i+1; j<states.size(); ++j) {
d3b1273780 2014-06-12        kinaba: 						if(states[j][k]=='-') {if(need_flip_to_minus)cur[k]='-';break;}
d3b1273780 2014-06-12        kinaba: 						if(states[j][k]=='+') {if(need_flip_to_plus)cur[k]='+';break;}
d3b1273780 2014-06-12        kinaba: 					}
d3b1273780 2014-06-12        kinaba: 					break;
d3b1273780 2014-06-12        kinaba: 				}
d3b1273780 2014-06-12        kinaba: 			}
d3b1273780 2014-06-12        kinaba: 			sec += 1 + need_flip_to_plus + need_flip_to_minus;
d3b1273780 2014-06-12        kinaba: 		}
d3b1273780 2014-06-12        kinaba: 		return sec;
d3b1273780 2014-06-12        kinaba: 	}
d3b1273780 2014-06-12        kinaba: };
d3b1273780 2014-06-12        kinaba: 
d3b1273780 2014-06-12        kinaba: // BEGIN CUT HERE
d3b1273780 2014-06-12        kinaba: #include <ctime>
d3b1273780 2014-06-12        kinaba: double start_time; string timer()
d3b1273780 2014-06-12        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
d3b1273780 2014-06-12        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
d3b1273780 2014-06-12        kinaba:  { os << "{ ";
d3b1273780 2014-06-12        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
d3b1273780 2014-06-12        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
d3b1273780 2014-06-12        kinaba: void verify_case(const int& Expected, const int& Received) {
d3b1273780 2014-06-12        kinaba:  bool ok = (Expected == Received);
d3b1273780 2014-06-12        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
d3b1273780 2014-06-12        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
d3b1273780 2014-06-12        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
d3b1273780 2014-06-12        kinaba: #define END	 verify_case(_, SwitchingGame().timeToWin(states));}
d3b1273780 2014-06-12        kinaba: int main(){
d3b1273780 2014-06-12        kinaba: 
d3b1273780 2014-06-12        kinaba: CASE(1)
d3b1273780 2014-06-12        kinaba: 	string states_[] = {"+-++",
d3b1273780 2014-06-12        kinaba:  "+-++"};
d3b1273780 2014-06-12        kinaba: 	  vector <string> states(states_, states_+sizeof(states_)/sizeof(*states_));
d3b1273780 2014-06-12        kinaba: 	int _ = 3;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(0)
d3b1273780 2014-06-12        kinaba: 	string states_[] = {"++--",
d3b1273780 2014-06-12        kinaba:  "--++"};
d3b1273780 2014-06-12        kinaba: 	  vector <string> states(states_, states_+sizeof(states_)/sizeof(*states_));
d3b1273780 2014-06-12        kinaba: 	int _ = 5;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(2)
d3b1273780 2014-06-12        kinaba: 	string states_[] = {"++",
d3b1273780 2014-06-12        kinaba:  "+?",
d3b1273780 2014-06-12        kinaba:  "?+",
d3b1273780 2014-06-12        kinaba:  "++"};
d3b1273780 2014-06-12        kinaba: 	  vector <string> states(states_, states_+sizeof(states_)/sizeof(*states_));
d3b1273780 2014-06-12        kinaba: 	int _ = 5;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(3)
d3b1273780 2014-06-12        kinaba: 	string states_[] = {"+",
d3b1273780 2014-06-12        kinaba:  "?",
d3b1273780 2014-06-12        kinaba:  "?",
d3b1273780 2014-06-12        kinaba:  "?",
d3b1273780 2014-06-12        kinaba:  "-"};
d3b1273780 2014-06-12        kinaba: 	  vector <string> states(states_, states_+sizeof(states_)/sizeof(*states_));
d3b1273780 2014-06-12        kinaba: 	int _ = 7;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(4)
d3b1273780 2014-06-12        kinaba: 	string states_[] = {"+??+++",
d3b1273780 2014-06-12        kinaba:  "++??+-",
d3b1273780 2014-06-12        kinaba:  "?++??+",
d3b1273780 2014-06-12        kinaba:  "?-+-??",
d3b1273780 2014-06-12        kinaba:  "??+?++",
d3b1273780 2014-06-12        kinaba:  "++-?+?",
d3b1273780 2014-06-12        kinaba:  "?++?-+",
d3b1273780 2014-06-12        kinaba:  "?--+++",
d3b1273780 2014-06-12        kinaba:  "-??-?+"}
d3b1273780 2014-06-12        kinaba: ;
d3b1273780 2014-06-12        kinaba: 	  vector <string> states(states_, states_+sizeof(states_)/sizeof(*states_));
d3b1273780 2014-06-12        kinaba: 	int _ = 20;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: /*
d3b1273780 2014-06-12        kinaba: CASE(5)
d3b1273780 2014-06-12        kinaba: 	string states_[] = ;
d3b1273780 2014-06-12        kinaba: 	  vector <string> states(states_, states_+sizeof(states_)/sizeof(*states_));
d3b1273780 2014-06-12        kinaba: 	int _ = ;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(6)
d3b1273780 2014-06-12        kinaba: 	string states_[] = ;
d3b1273780 2014-06-12        kinaba: 	  vector <string> states(states_, states_+sizeof(states_)/sizeof(*states_));
d3b1273780 2014-06-12        kinaba: 	int _ = ;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: */
d3b1273780 2014-06-12        kinaba: }
d3b1273780 2014-06-12        kinaba: // END CUT HERE