5aef274bd6 2011-11-12        kinaba: #include <iostream>
5aef274bd6 2011-11-12        kinaba: #include <sstream>
5aef274bd6 2011-11-12        kinaba: #include <iomanip>
5aef274bd6 2011-11-12        kinaba: #include <vector>
5aef274bd6 2011-11-12        kinaba: #include <string>
5aef274bd6 2011-11-12        kinaba: #include <map>
5aef274bd6 2011-11-12        kinaba: #include <set>
5aef274bd6 2011-11-12        kinaba: #include <algorithm>
5aef274bd6 2011-11-12        kinaba: #include <numeric>
5aef274bd6 2011-11-12        kinaba: #include <iterator>
5aef274bd6 2011-11-12        kinaba: #include <functional>
5aef274bd6 2011-11-12        kinaba: #include <complex>
5aef274bd6 2011-11-12        kinaba: #include <queue>
5aef274bd6 2011-11-12        kinaba: #include <stack>
5aef274bd6 2011-11-12        kinaba: #include <cmath>
5aef274bd6 2011-11-12        kinaba: #include <cassert>
5aef274bd6 2011-11-12        kinaba: #include <cstring>
5aef274bd6 2011-11-12        kinaba: using namespace std;
5aef274bd6 2011-11-12        kinaba: typedef long long LL;
5aef274bd6 2011-11-12        kinaba: typedef complex<double> CMP;
5aef274bd6 2011-11-12        kinaba: 
5aef274bd6 2011-11-12        kinaba: class CorrectMultiplicationTwo { public:
5aef274bd6 2011-11-12        kinaba: 	int getMinimum(int a, int b, int c)
5aef274bd6 2011-11-12        kinaba: 	{
5aef274bd6 2011-11-12        kinaba: 		LL score = 1LL<<62;
5aef274bd6 2011-11-12        kinaba: 		if(a>b) swap(a,b);
5aef274bd6 2011-11-12        kinaba: 		int Amax = int(sqrt((double)c))+999;
5aef274bd6 2011-11-12        kinaba: 		for (int A = 1; A <= Amax; A++)
5aef274bd6 2011-11-12        kinaba: 		{
5aef274bd6 2011-11-12        kinaba: 			for (int B = c/A-10; B <= c/A+10; B++)
5aef274bd6 2011-11-12        kinaba: 			{
5aef274bd6 2011-11-12        kinaba: 				if( B > 0 )
5aef274bd6 2011-11-12        kinaba: 					score = min(score, abs(A-a)+abs(B-b)+abs(LL(A)*B-c));
5aef274bd6 2011-11-12        kinaba: 			}
5aef274bd6 2011-11-12        kinaba: 		}
5aef274bd6 2011-11-12        kinaba: 		return score;
5aef274bd6 2011-11-12        kinaba: 	}
5aef274bd6 2011-11-12        kinaba: };
5aef274bd6 2011-11-12        kinaba: 
5aef274bd6 2011-11-12        kinaba: // BEGIN CUT HERE
5aef274bd6 2011-11-12        kinaba: #include <ctime>
5aef274bd6 2011-11-12        kinaba: double start_time; string timer()
5aef274bd6 2011-11-12        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
5aef274bd6 2011-11-12        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
5aef274bd6 2011-11-12        kinaba:  { os << "{ ";
5aef274bd6 2011-11-12        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
5aef274bd6 2011-11-12        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
5aef274bd6 2011-11-12        kinaba: void verify_case(const int& Expected, const int& Received) {
5aef274bd6 2011-11-12        kinaba:  bool ok = (Expected == Received);
5aef274bd6 2011-11-12        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
5aef274bd6 2011-11-12        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
5aef274bd6 2011-11-12        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
5aef274bd6 2011-11-12        kinaba: #define END	 verify_case(_, CorrectMultiplicationTwo().getMinimum(a, b, c));}
5aef274bd6 2011-11-12        kinaba: int main(){
5aef274bd6 2011-11-12        kinaba: 
5aef274bd6 2011-11-12        kinaba: CASE(0)
5aef274bd6 2011-11-12        kinaba: 	int a = 19;
5aef274bd6 2011-11-12        kinaba: 	int b = 28;
5aef274bd6 2011-11-12        kinaba: 	int c = 522;
5aef274bd6 2011-11-12        kinaba: 	int _ = 2;
5aef274bd6 2011-11-12        kinaba: END
5aef274bd6 2011-11-12        kinaba: CASE(1)
5aef274bd6 2011-11-12        kinaba: 	int a = 10;
5aef274bd6 2011-11-12        kinaba: 	int b = 30;
5aef274bd6 2011-11-12        kinaba: 	int c = 500;
5aef274bd6 2011-11-12        kinaba: 	int _ = 11;
5aef274bd6 2011-11-12        kinaba: END
5aef274bd6 2011-11-12        kinaba: CASE(2)
5aef274bd6 2011-11-12        kinaba: 	int a = 111;
5aef274bd6 2011-11-12        kinaba: 	int b = 111;
5aef274bd6 2011-11-12        kinaba: 	int c = 12321;
5aef274bd6 2011-11-12        kinaba: 	int _ = 0;
5aef274bd6 2011-11-12        kinaba: END
5aef274bd6 2011-11-12        kinaba: CASE(3)
5aef274bd6 2011-11-12        kinaba: 	int a = 1000;
5aef274bd6 2011-11-12        kinaba: 	int b = 100;
5aef274bd6 2011-11-12        kinaba: 	int c = 10;
5aef274bd6 2011-11-12        kinaba: 	int _ = 1089;
5aef274bd6 2011-11-12        kinaba: END
5aef274bd6 2011-11-12        kinaba: CASE(4)
5aef274bd6 2011-11-12        kinaba: 	int a = 399;
5aef274bd6 2011-11-12        kinaba: 	int b = 522;
5aef274bd6 2011-11-12        kinaba: 	int c = 199999;
5aef274bd6 2011-11-12        kinaba: 	int _ = 24;
5aef274bd6 2011-11-12        kinaba: END
5aef274bd6 2011-11-12        kinaba: /*
5aef274bd6 2011-11-12        kinaba: CASE(5)
5aef274bd6 2011-11-12        kinaba: 	int a = ;
5aef274bd6 2011-11-12        kinaba: 	int b = ;
5aef274bd6 2011-11-12        kinaba: 	int c = ;
5aef274bd6 2011-11-12        kinaba: 	int _ = ;
5aef274bd6 2011-11-12        kinaba: END
5aef274bd6 2011-11-12        kinaba: CASE(6)
5aef274bd6 2011-11-12        kinaba: 	int a = ;
5aef274bd6 2011-11-12        kinaba: 	int b = ;
5aef274bd6 2011-11-12        kinaba: 	int c = ;
5aef274bd6 2011-11-12        kinaba: 	int _ = ;
5aef274bd6 2011-11-12        kinaba: END
5aef274bd6 2011-11-12        kinaba: */
5aef274bd6 2011-11-12        kinaba: }
5aef274bd6 2011-11-12        kinaba: // END CUT HERE