0bad7aa887 2013-12-14        kinaba: #include <iostream>
0bad7aa887 2013-12-14        kinaba: #include <sstream>
0bad7aa887 2013-12-14        kinaba: #include <iomanip>
0bad7aa887 2013-12-14        kinaba: #include <vector>
0bad7aa887 2013-12-14        kinaba: #include <string>
0bad7aa887 2013-12-14        kinaba: #include <map>
0bad7aa887 2013-12-14        kinaba: #include <set>
0bad7aa887 2013-12-14        kinaba: #include <algorithm>
0bad7aa887 2013-12-14        kinaba: #include <numeric>
0bad7aa887 2013-12-14        kinaba: #include <iterator>
0bad7aa887 2013-12-14        kinaba: #include <functional>
0bad7aa887 2013-12-14        kinaba: #include <complex>
0bad7aa887 2013-12-14        kinaba: #include <queue>
0bad7aa887 2013-12-14        kinaba: #include <stack>
0bad7aa887 2013-12-14        kinaba: #include <cmath>
0bad7aa887 2013-12-14        kinaba: #include <cassert>
0bad7aa887 2013-12-14        kinaba: #include <tuple>
0bad7aa887 2013-12-14        kinaba: using namespace std;
0bad7aa887 2013-12-14        kinaba: typedef long long LL;
0bad7aa887 2013-12-14        kinaba: typedef complex<double> CMP;
0bad7aa887 2013-12-14        kinaba: 
0bad7aa887 2013-12-14        kinaba: class BigFatInteger { public:
0bad7aa887 2013-12-14        kinaba: 	int minOperations(int A, int B)
0bad7aa887 2013-12-14        kinaba: 	{
0bad7aa887 2013-12-14        kinaba: 		vector<int> s;
0bad7aa887 2013-12-14        kinaba: 		for(int p=2; p*p<=A; ++p)
0bad7aa887 2013-12-14        kinaba: 		{
0bad7aa887 2013-12-14        kinaba: 			int c = 0;
0bad7aa887 2013-12-14        kinaba: 			while(A%p==0) A/=p, ++c;
0bad7aa887 2013-12-14        kinaba: 			if(c) s.push_back(c*B);
0bad7aa887 2013-12-14        kinaba: 		}
0bad7aa887 2013-12-14        kinaba: 		if(A>1)
0bad7aa887 2013-12-14        kinaba: 			s.push_back(1*B);
0bad7aa887 2013-12-14        kinaba: 
0bad7aa887 2013-12-14        kinaba: 		int cnt = s.size();
0bad7aa887 2013-12-14        kinaba: 		vector<int> cur(s.size(), 1);
0bad7aa887 2013-12-14        kinaba: 		while(cur != s)
0bad7aa887 2013-12-14        kinaba: 		{
0bad7aa887 2013-12-14        kinaba: 			for(int i=0; i<s.size(); ++i)
0bad7aa887 2013-12-14        kinaba: 				cur[i] = min(cur[i]*2, s[i]);
0bad7aa887 2013-12-14        kinaba: 			++cnt;
0bad7aa887 2013-12-14        kinaba: 		}
0bad7aa887 2013-12-14        kinaba: 		return cnt;
0bad7aa887 2013-12-14        kinaba: 	}
0bad7aa887 2013-12-14        kinaba: };
0bad7aa887 2013-12-14        kinaba: 
0bad7aa887 2013-12-14        kinaba: // BEGIN CUT HERE
0bad7aa887 2013-12-14        kinaba: #include <ctime>
0bad7aa887 2013-12-14        kinaba: double start_time; string timer()
0bad7aa887 2013-12-14        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
0bad7aa887 2013-12-14        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
0bad7aa887 2013-12-14        kinaba:  { os << "{ ";
0bad7aa887 2013-12-14        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
0bad7aa887 2013-12-14        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
0bad7aa887 2013-12-14        kinaba: void verify_case(const int& Expected, const int& Received) {
0bad7aa887 2013-12-14        kinaba:  bool ok = (Expected == Received);
0bad7aa887 2013-12-14        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
0bad7aa887 2013-12-14        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
0bad7aa887 2013-12-14        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
0bad7aa887 2013-12-14        kinaba: #define END	 verify_case(_, BigFatInteger().minOperations(A, B));}
0bad7aa887 2013-12-14        kinaba: int main(){
0bad7aa887 2013-12-14        kinaba: 
0bad7aa887 2013-12-14        kinaba: CASE(0)
0bad7aa887 2013-12-14        kinaba: 	int A = 6;
0bad7aa887 2013-12-14        kinaba: 	int B = 1;
0bad7aa887 2013-12-14        kinaba: 	int _ = 2;
0bad7aa887 2013-12-14        kinaba: END
0bad7aa887 2013-12-14        kinaba: CASE(1)
0bad7aa887 2013-12-14        kinaba: 	int A = 162;
0bad7aa887 2013-12-14        kinaba: 	int B = 1;
0bad7aa887 2013-12-14        kinaba: 	int _ = 4;
0bad7aa887 2013-12-14        kinaba: END
0bad7aa887 2013-12-14        kinaba: CASE(2)
0bad7aa887 2013-12-14        kinaba: 	int A = 999983;
0bad7aa887 2013-12-14        kinaba: 	int B = 9;
0bad7aa887 2013-12-14        kinaba: 	int _ = 5;
0bad7aa887 2013-12-14        kinaba: END
0bad7aa887 2013-12-14        kinaba: CASE(3)
0bad7aa887 2013-12-14        kinaba: 	int A = 360;
0bad7aa887 2013-12-14        kinaba: 	int B = 8;
0bad7aa887 2013-12-14        kinaba: 	int _ = 8;
0bad7aa887 2013-12-14        kinaba: END
0bad7aa887 2013-12-14        kinaba: CASE(4)
0bad7aa887 2013-12-14        kinaba: 	int A = 1000000;
0bad7aa887 2013-12-14        kinaba: 	int B = 1000000;
0bad7aa887 2013-12-14        kinaba: 	int _ = -1;
0bad7aa887 2013-12-14        kinaba: END
0bad7aa887 2013-12-14        kinaba: CASE(5)
0bad7aa887 2013-12-14        kinaba: 	int A = 2*3*5*7*11*13*17;
0bad7aa887 2013-12-14        kinaba: 	int B = 1000000;
0bad7aa887 2013-12-14        kinaba: 	int _ = -1;
0bad7aa887 2013-12-14        kinaba: END
0bad7aa887 2013-12-14        kinaba: 
0bad7aa887 2013-12-14        kinaba: }
0bad7aa887 2013-12-14        kinaba: // END CUT HERE