1ef2ecff66 2011-08-21        kinaba: #include <iostream>
1ef2ecff66 2011-08-21        kinaba: #include <sstream>
1ef2ecff66 2011-08-21        kinaba: #include <iomanip>
1ef2ecff66 2011-08-21        kinaba: #include <vector>
1ef2ecff66 2011-08-21        kinaba: #include <string>
1ef2ecff66 2011-08-21        kinaba: #include <map>
1ef2ecff66 2011-08-21        kinaba: #include <set>
1ef2ecff66 2011-08-21        kinaba: #include <algorithm>
1ef2ecff66 2011-08-21        kinaba: #include <numeric>
1ef2ecff66 2011-08-21        kinaba: #include <iterator>
1ef2ecff66 2011-08-21        kinaba: #include <functional>
1ef2ecff66 2011-08-21        kinaba: #include <complex>
1ef2ecff66 2011-08-21        kinaba: #include <queue>
1ef2ecff66 2011-08-21        kinaba: #include <stack>
1ef2ecff66 2011-08-21        kinaba: #include <cmath>
1ef2ecff66 2011-08-21        kinaba: #include <cassert>
1ef2ecff66 2011-08-21        kinaba: #include <cstring>
1ef2ecff66 2011-08-21        kinaba: using namespace std;
1ef2ecff66 2011-08-21        kinaba: typedef long long LL;
1ef2ecff66 2011-08-21        kinaba: typedef complex<double> CMP;
1ef2ecff66 2011-08-21        kinaba: 
1ef2ecff66 2011-08-21        kinaba: class RotatedClock { public:
1ef2ecff66 2011-08-21        kinaba: 	string getEarliest(int hourHand, int minuteHand)
1ef2ecff66 2011-08-21        kinaba: 	{
1ef2ecff66 2011-08-21        kinaba: 		for(int h=0; h<12; ++h)
1ef2ecff66 2011-08-21        kinaba: 			for(int m=0; m<60; ++m)
1ef2ecff66 2011-08-21        kinaba: 				for(int offset=0; offset<360; offset+=30) {
1ef2ecff66 2011-08-21        kinaba: 					int hx = (hourHand + offset) % 360;
1ef2ecff66 2011-08-21        kinaba: 					int mx = (minuteHand + offset) % 360;
1ef2ecff66 2011-08-21        kinaba: 					if( match(h, m, hx, mx) ) {
1ef2ecff66 2011-08-21        kinaba: 						char buf[100];
1ef2ecff66 2011-08-21        kinaba: 						sprintf(buf, "%02d:%02d", h, m);
1ef2ecff66 2011-08-21        kinaba: 						return buf;
1ef2ecff66 2011-08-21        kinaba: 					}
1ef2ecff66 2011-08-21        kinaba: 				}
1ef2ecff66 2011-08-21        kinaba: 		return string();
1ef2ecff66 2011-08-21        kinaba: 	}
1ef2ecff66 2011-08-21        kinaba: 
1ef2ecff66 2011-08-21        kinaba: 	bool match(int h, int m, int hx, int mx)
1ef2ecff66 2011-08-21        kinaba: 	{
1ef2ecff66 2011-08-21        kinaba: 		return (h*60+m)*360 == hx*(12*60)
1ef2ecff66 2011-08-21        kinaba: 			&& m*360 == mx*60;
1ef2ecff66 2011-08-21        kinaba: 	}
1ef2ecff66 2011-08-21        kinaba: };
1ef2ecff66 2011-08-21        kinaba: 
1ef2ecff66 2011-08-21        kinaba: // BEGIN CUT HERE
1ef2ecff66 2011-08-21        kinaba: #include <ctime>
1ef2ecff66 2011-08-21        kinaba: double start_time; string timer()
1ef2ecff66 2011-08-21        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
1ef2ecff66 2011-08-21        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
1ef2ecff66 2011-08-21        kinaba:  { os << "{ ";
1ef2ecff66 2011-08-21        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
1ef2ecff66 2011-08-21        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
1ef2ecff66 2011-08-21        kinaba: void verify_case(const string& Expected, const string& Received) {
1ef2ecff66 2011-08-21        kinaba:  bool ok = (Expected == Received);
1ef2ecff66 2011-08-21        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
1ef2ecff66 2011-08-21        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
1ef2ecff66 2011-08-21        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
1ef2ecff66 2011-08-21        kinaba: #define END	 verify_case(_, RotatedClock().getEarliest(hourHand, minuteHand));}
1ef2ecff66 2011-08-21        kinaba: int main(){
1ef2ecff66 2011-08-21        kinaba: 
1ef2ecff66 2011-08-21        kinaba: CASE(0)
1ef2ecff66 2011-08-21        kinaba: 	int hourHand = 70;
1ef2ecff66 2011-08-21        kinaba: 	int minuteHand = 300;
1ef2ecff66 2011-08-21        kinaba: 	string _ = "08:20";
1ef2ecff66 2011-08-21        kinaba: END
1ef2ecff66 2011-08-21        kinaba: CASE(1)
1ef2ecff66 2011-08-21        kinaba: 	int hourHand = 90;
1ef2ecff66 2011-08-21        kinaba: 	int minuteHand = 120;
1ef2ecff66 2011-08-21        kinaba: 	string _ = "11:00";
1ef2ecff66 2011-08-21        kinaba: END
1ef2ecff66 2011-08-21        kinaba: CASE(2)
1ef2ecff66 2011-08-21        kinaba: 	int hourHand = 240;
1ef2ecff66 2011-08-21        kinaba: 	int minuteHand = 36;
1ef2ecff66 2011-08-21        kinaba: 	string _ = "";
1ef2ecff66 2011-08-21        kinaba: END
1ef2ecff66 2011-08-21        kinaba: CASE(3)
1ef2ecff66 2011-08-21        kinaba: 	int hourHand = 19;
1ef2ecff66 2011-08-21        kinaba: 	int minuteHand = 19;
1ef2ecff66 2011-08-21        kinaba: 	string _ = "";
1ef2ecff66 2011-08-21        kinaba: END
1ef2ecff66 2011-08-21        kinaba: CASE(4)
1ef2ecff66 2011-08-21        kinaba: 	int hourHand = 1;
1ef2ecff66 2011-08-21        kinaba: 	int minuteHand = 12;
1ef2ecff66 2011-08-21        kinaba: 	string _ = "00:02";
1ef2ecff66 2011-08-21        kinaba: END
1ef2ecff66 2011-08-21        kinaba: /*
1ef2ecff66 2011-08-21        kinaba: CASE(5)
1ef2ecff66 2011-08-21        kinaba: 	int hourHand = ;
1ef2ecff66 2011-08-21        kinaba: 	int minuteHand = ;
1ef2ecff66 2011-08-21        kinaba: 	string _ = ;
1ef2ecff66 2011-08-21        kinaba: END
1ef2ecff66 2011-08-21        kinaba: CASE(6)
1ef2ecff66 2011-08-21        kinaba: 	int hourHand = ;
1ef2ecff66 2011-08-21        kinaba: 	int minuteHand = ;
1ef2ecff66 2011-08-21        kinaba: 	string _ = ;
1ef2ecff66 2011-08-21        kinaba: END
1ef2ecff66 2011-08-21        kinaba: */
1ef2ecff66 2011-08-21        kinaba: }
1ef2ecff66 2011-08-21        kinaba: // END CUT HERE