9d33e96a5e 2012-03-31        kinaba: #include <iostream>
9d33e96a5e 2012-03-31        kinaba: #include <sstream>
9d33e96a5e 2012-03-31        kinaba: #include <iomanip>
9d33e96a5e 2012-03-31        kinaba: #include <vector>
9d33e96a5e 2012-03-31        kinaba: #include <string>
9d33e96a5e 2012-03-31        kinaba: #include <map>
9d33e96a5e 2012-03-31        kinaba: #include <set>
9d33e96a5e 2012-03-31        kinaba: #include <algorithm>
9d33e96a5e 2012-03-31        kinaba: #include <numeric>
9d33e96a5e 2012-03-31        kinaba: #include <iterator>
9d33e96a5e 2012-03-31        kinaba: #include <functional>
9d33e96a5e 2012-03-31        kinaba: #include <complex>
9d33e96a5e 2012-03-31        kinaba: #include <queue>
9d33e96a5e 2012-03-31        kinaba: #include <stack>
9d33e96a5e 2012-03-31        kinaba: #include <cmath>
9d33e96a5e 2012-03-31        kinaba: #include <cassert>
9d33e96a5e 2012-03-31        kinaba: #include <cstring>
9d33e96a5e 2012-03-31        kinaba: #ifdef __GNUC__
9d33e96a5e 2012-03-31        kinaba: #include <ext/hash_map>
9d33e96a5e 2012-03-31        kinaba: #define unordered_map __gnu_cxx::hash_map
9d33e96a5e 2012-03-31        kinaba: #else
9d33e96a5e 2012-03-31        kinaba: #include <unordered_map>
9d33e96a5e 2012-03-31        kinaba: #endif
9d33e96a5e 2012-03-31        kinaba: using namespace std;
9d33e96a5e 2012-03-31        kinaba: typedef long long LL;
9d33e96a5e 2012-03-31        kinaba: typedef complex<double> CMP;
9d33e96a5e 2012-03-31        kinaba: 
9d33e96a5e 2012-03-31        kinaba: class KingXNewCurrency { public:
9d33e96a5e 2012-03-31        kinaba: 	int howMany(int A, int B, int X)
9d33e96a5e 2012-03-31        kinaba: 	{
9d33e96a5e 2012-03-31        kinaba: 		if(A%X==0 && B%X==0)
9d33e96a5e 2012-03-31        kinaba: 			return -1;
9d33e96a5e 2012-03-31        kinaba: 		int cnt = 0;
9d33e96a5e 2012-03-31        kinaba: 		for(int Y=1; Y<=max(A,B); ++Y)
9d33e96a5e 2012-03-31        kinaba: 			if( possible(A,B,X,Y) )
9d33e96a5e 2012-03-31        kinaba: 				cnt++;
9d33e96a5e 2012-03-31        kinaba: 		return cnt;
9d33e96a5e 2012-03-31        kinaba: 	}
9d33e96a5e 2012-03-31        kinaba: 
9d33e96a5e 2012-03-31        kinaba: 	bool possible(int A, int B, int X, int Y)
9d33e96a5e 2012-03-31        kinaba: 	{
9d33e96a5e 2012-03-31        kinaba: 		bool Aok = false;
9d33e96a5e 2012-03-31        kinaba: 		for(int p=0; p*X<=A; ++p)
9d33e96a5e 2012-03-31        kinaba: 			if( (A-p*X)%Y == 0 )
9d33e96a5e 2012-03-31        kinaba: 				Aok = true;
9d33e96a5e 2012-03-31        kinaba: 		bool Bok = false;
9d33e96a5e 2012-03-31        kinaba: 		for(int p=0; p*X<=B; ++p)
9d33e96a5e 2012-03-31        kinaba: 			if( (B-p*X)%Y == 0 )
9d33e96a5e 2012-03-31        kinaba: 				Bok = true;
9d33e96a5e 2012-03-31        kinaba: 		return Aok&&Bok;
9d33e96a5e 2012-03-31        kinaba: 	}
9d33e96a5e 2012-03-31        kinaba: };
9d33e96a5e 2012-03-31        kinaba: 
9d33e96a5e 2012-03-31        kinaba: // BEGIN CUT HERE
9d33e96a5e 2012-03-31        kinaba: #include <ctime>
9d33e96a5e 2012-03-31        kinaba: double start_time; string timer()
9d33e96a5e 2012-03-31        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
9d33e96a5e 2012-03-31        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
9d33e96a5e 2012-03-31        kinaba:  { os << "{ ";
9d33e96a5e 2012-03-31        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
9d33e96a5e 2012-03-31        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
9d33e96a5e 2012-03-31        kinaba: void verify_case(const int& Expected, const int& Received) {
9d33e96a5e 2012-03-31        kinaba:  bool ok = (Expected == Received);
9d33e96a5e 2012-03-31        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
9d33e96a5e 2012-03-31        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
9d33e96a5e 2012-03-31        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
9d33e96a5e 2012-03-31        kinaba: #define END	 verify_case(_, KingXNewCurrency().howMany(A, B, X));}
9d33e96a5e 2012-03-31        kinaba: int main(){
9d33e96a5e 2012-03-31        kinaba: 
9d33e96a5e 2012-03-31        kinaba: CASE(0)
9d33e96a5e 2012-03-31        kinaba: 	int A = 5;
9d33e96a5e 2012-03-31        kinaba: 	int B = 8;
9d33e96a5e 2012-03-31        kinaba: 	int X = 5;
9d33e96a5e 2012-03-31        kinaba: 	int _ = 5;
9d33e96a5e 2012-03-31        kinaba: END
9d33e96a5e 2012-03-31        kinaba: CASE(1)
9d33e96a5e 2012-03-31        kinaba: 	int A = 8;
9d33e96a5e 2012-03-31        kinaba: 	int B = 4;
9d33e96a5e 2012-03-31        kinaba: 	int X = 2;
9d33e96a5e 2012-03-31        kinaba: 	int _ = -1;
9d33e96a5e 2012-03-31        kinaba: END
9d33e96a5e 2012-03-31        kinaba: CASE(2)
9d33e96a5e 2012-03-31        kinaba: 	int A = 7;
9d33e96a5e 2012-03-31        kinaba: 	int B = 4;
9d33e96a5e 2012-03-31        kinaba: 	int X = 13;
9d33e96a5e 2012-03-31        kinaba: 	int _ = 1;
9d33e96a5e 2012-03-31        kinaba: END
9d33e96a5e 2012-03-31        kinaba: CASE(3)
9d33e96a5e 2012-03-31        kinaba: 	int A = 47;
9d33e96a5e 2012-03-31        kinaba: 	int B = 74;
9d33e96a5e 2012-03-31        kinaba: 	int X = 44;
9d33e96a5e 2012-03-31        kinaba: 	int _ = 2;
9d33e96a5e 2012-03-31        kinaba: END
9d33e96a5e 2012-03-31        kinaba: CASE(4)
9d33e96a5e 2012-03-31        kinaba: 	int A = 128;
9d33e96a5e 2012-03-31        kinaba: 	int B = 96;
9d33e96a5e 2012-03-31        kinaba: 	int X = 3;
9d33e96a5e 2012-03-31        kinaba: 	int _ = 65;
9d33e96a5e 2012-03-31        kinaba: END
9d33e96a5e 2012-03-31        kinaba: /*
9d33e96a5e 2012-03-31        kinaba: CASE(5)
9d33e96a5e 2012-03-31        kinaba: 	int A = ;
9d33e96a5e 2012-03-31        kinaba: 	int B = ;
9d33e96a5e 2012-03-31        kinaba: 	int X = ;
9d33e96a5e 2012-03-31        kinaba: 	int _ = ;
9d33e96a5e 2012-03-31        kinaba: END
9d33e96a5e 2012-03-31        kinaba: CASE(6)
9d33e96a5e 2012-03-31        kinaba: 	int A = ;
9d33e96a5e 2012-03-31        kinaba: 	int B = ;
9d33e96a5e 2012-03-31        kinaba: 	int X = ;
9d33e96a5e 2012-03-31        kinaba: 	int _ = ;
9d33e96a5e 2012-03-31        kinaba: END
9d33e96a5e 2012-03-31        kinaba: */
9d33e96a5e 2012-03-31        kinaba: }
9d33e96a5e 2012-03-31        kinaba: // END CUT HERE