148e3f363b 2011-09-10        kinaba: #include <iostream>
148e3f363b 2011-09-10        kinaba: #include <sstream>
148e3f363b 2011-09-10        kinaba: #include <iomanip>
148e3f363b 2011-09-10        kinaba: #include <vector>
148e3f363b 2011-09-10        kinaba: #include <string>
148e3f363b 2011-09-10        kinaba: #include <map>
148e3f363b 2011-09-10        kinaba: #include <set>
148e3f363b 2011-09-10        kinaba: #include <algorithm>
148e3f363b 2011-09-10        kinaba: #include <numeric>
148e3f363b 2011-09-10        kinaba: #include <iterator>
148e3f363b 2011-09-10        kinaba: #include <functional>
148e3f363b 2011-09-10        kinaba: #include <complex>
148e3f363b 2011-09-10        kinaba: #include <queue>
148e3f363b 2011-09-10        kinaba: #include <stack>
148e3f363b 2011-09-10        kinaba: #include <cmath>
148e3f363b 2011-09-10        kinaba: #include <cassert>
148e3f363b 2011-09-10        kinaba: #include <cstring>
148e3f363b 2011-09-10        kinaba: using namespace std;
148e3f363b 2011-09-10        kinaba: typedef long long LL;
148e3f363b 2011-09-10        kinaba: typedef complex<double> CMP;
148e3f363b 2011-09-10        kinaba: 
148e3f363b 2011-09-10        kinaba: class NetworkXZeroOne { public:
148e3f363b 2011-09-10        kinaba: 	string reconstruct(string message)
148e3f363b 2011-09-10        kinaba: 	{
148e3f363b 2011-09-10        kinaba: 		if( message[0]=='?' ) {
148e3f363b 2011-09-10        kinaba: 			string msg = message;
148e3f363b 2011-09-10        kinaba: 			msg[0] = 'o';
148e3f363b 2011-09-10        kinaba: 			if( check(msg) )
148e3f363b 2011-09-10        kinaba: 				return msg;
148e3f363b 2011-09-10        kinaba: 			message[0] = 'x';
148e3f363b 2011-09-10        kinaba: 		}
148e3f363b 2011-09-10        kinaba: 		check(message);
148e3f363b 2011-09-10        kinaba: 		return message;
148e3f363b 2011-09-10        kinaba: 	}
148e3f363b 2011-09-10        kinaba: 
148e3f363b 2011-09-10        kinaba: 	bool check(string& msg)
148e3f363b 2011-09-10        kinaba: 	{
148e3f363b 2011-09-10        kinaba: 		for(int i=1; i<msg.size(); ++i)
148e3f363b 2011-09-10        kinaba: 			if( msg[i]=='?' ) {
148e3f363b 2011-09-10        kinaba: 				if( msg[i-1]=='x' )
148e3f363b 2011-09-10        kinaba: 					msg[i]='o';
148e3f363b 2011-09-10        kinaba: 				else
148e3f363b 2011-09-10        kinaba: 					msg[i]='x';
148e3f363b 2011-09-10        kinaba: 			}
148e3f363b 2011-09-10        kinaba: 		for(int i=0; i<msg.size(); ++i)
148e3f363b 2011-09-10        kinaba: 			for(int k=2; i+k<=msg.size(); k+=2)
148e3f363b 2011-09-10        kinaba: 				if( count(msg.begin()+i, msg.begin()+i+k, 'o')*2 != k )
148e3f363b 2011-09-10        kinaba: 					return false;
148e3f363b 2011-09-10        kinaba: 		return true;
148e3f363b 2011-09-10        kinaba: 	}
148e3f363b 2011-09-10        kinaba: };
148e3f363b 2011-09-10        kinaba: 
148e3f363b 2011-09-10        kinaba: // BEGIN CUT HERE
148e3f363b 2011-09-10        kinaba: #include <ctime>
148e3f363b 2011-09-10        kinaba: double start_time; string timer()
148e3f363b 2011-09-10        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
148e3f363b 2011-09-10        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
148e3f363b 2011-09-10        kinaba:  { os << "{ ";
148e3f363b 2011-09-10        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
148e3f363b 2011-09-10        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
148e3f363b 2011-09-10        kinaba: void verify_case(const string& Expected, const string& Received) {
148e3f363b 2011-09-10        kinaba:  bool ok = (Expected == Received);
148e3f363b 2011-09-10        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
148e3f363b 2011-09-10        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
148e3f363b 2011-09-10        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
148e3f363b 2011-09-10        kinaba: #define END	 verify_case(_, NetworkXZeroOne().reconstruct(message));}
148e3f363b 2011-09-10        kinaba: int main(){
148e3f363b 2011-09-10        kinaba: 
148e3f363b 2011-09-10        kinaba: CASE(0)
148e3f363b 2011-09-10        kinaba: 	string message = "x?x?";
148e3f363b 2011-09-10        kinaba: 	string _ = "xoxo";
148e3f363b 2011-09-10        kinaba: END
148e3f363b 2011-09-10        kinaba: CASE(1)
148e3f363b 2011-09-10        kinaba: 	string message = "?xo?";
148e3f363b 2011-09-10        kinaba: 	string _ = "oxox";
148e3f363b 2011-09-10        kinaba: END
148e3f363b 2011-09-10        kinaba: CASE(2)
148e3f363b 2011-09-10        kinaba: 	string message = "xo";
148e3f363b 2011-09-10        kinaba: 	string _ = "xo";
148e3f363b 2011-09-10        kinaba: END
148e3f363b 2011-09-10        kinaba: CASE(3)
148e3f363b 2011-09-10        kinaba: 	string message = "o??x??o";
148e3f363b 2011-09-10        kinaba: 	string _ = "oxoxoxo";
148e3f363b 2011-09-10        kinaba: END
148e3f363b 2011-09-10        kinaba: CASE(4)
148e3f363b 2011-09-10        kinaba: 	string message = "???????x";
148e3f363b 2011-09-10        kinaba: 	string _ = "oxoxoxox";
148e3f363b 2011-09-10        kinaba: END
148e3f363b 2011-09-10        kinaba: /*
148e3f363b 2011-09-10        kinaba: CASE(5)
148e3f363b 2011-09-10        kinaba: 	string message = ;
148e3f363b 2011-09-10        kinaba: 	string _ = ;
148e3f363b 2011-09-10        kinaba: END
148e3f363b 2011-09-10        kinaba: CASE(6)
148e3f363b 2011-09-10        kinaba: 	string message = ;
148e3f363b 2011-09-10        kinaba: 	string _ = ;
148e3f363b 2011-09-10        kinaba: END
148e3f363b 2011-09-10        kinaba: */
148e3f363b 2011-09-10        kinaba: }
148e3f363b 2011-09-10        kinaba: // END CUT HERE