File Annotation
Not logged in
d3b1273780 2014-06-12        kinaba: #include <iostream>
d3b1273780 2014-06-12        kinaba: #include <sstream>
d3b1273780 2014-06-12        kinaba: #include <iomanip>
d3b1273780 2014-06-12        kinaba: #include <vector>
d3b1273780 2014-06-12        kinaba: #include <string>
d3b1273780 2014-06-12        kinaba: #include <map>
d3b1273780 2014-06-12        kinaba: #include <set>
d3b1273780 2014-06-12        kinaba: #include <algorithm>
d3b1273780 2014-06-12        kinaba: #include <numeric>
d3b1273780 2014-06-12        kinaba: #include <iterator>
d3b1273780 2014-06-12        kinaba: #include <functional>
d3b1273780 2014-06-12        kinaba: #include <complex>
d3b1273780 2014-06-12        kinaba: #include <queue>
d3b1273780 2014-06-12        kinaba: #include <stack>
d3b1273780 2014-06-12        kinaba: #include <cmath>
d3b1273780 2014-06-12        kinaba: #include <cassert>
d3b1273780 2014-06-12        kinaba: #include <tuple>
d3b1273780 2014-06-12        kinaba: using namespace std;
d3b1273780 2014-06-12        kinaba: typedef long long LL;
d3b1273780 2014-06-12        kinaba: typedef complex<double> CMP;
d3b1273780 2014-06-12        kinaba: 
d3b1273780 2014-06-12        kinaba: class SumAndProductPuzzle { public:
d3b1273780 2014-06-12        kinaba: 	long long getSum(int A, int B)
d3b1273780 2014-06-12        kinaba: 	{
d3b1273780 2014-06-12        kinaba: 		static const int N = 5000000;
d3b1273780 2014-06-12        kinaba: 		vector<bool> isp(N+1, true);
d3b1273780 2014-06-12        kinaba: 		for(int p=2; p<=N; ++p)
d3b1273780 2014-06-12        kinaba: 			if(isp[p])
d3b1273780 2014-06-12        kinaba: 				for(int q=p+p; q<=N; q+=p)
d3b1273780 2014-06-12        kinaba: 					isp[q] = false;
d3b1273780 2014-06-12        kinaba: 
d3b1273780 2014-06-12        kinaba: 		vector<bool> has_dec(N+1, false);
d3b1273780 2014-06-12        kinaba: 		for(int p=2; p<=N; ++p)
d3b1273780 2014-06-12        kinaba: 			for(int S=p+p; S<=N; S+=p) {
d3b1273780 2014-06-12        kinaba: 				int q = S/p;
d3b1273780 2014-06-12        kinaba: 				if(!isp[p+q-1])
d3b1273780 2014-06-12        kinaba: 					has_dec[S] = true;
d3b1273780 2014-06-12        kinaba: 			}
d3b1273780 2014-06-12        kinaba: 
d3b1273780 2014-06-12        kinaba: 		LL sum = 0;
d3b1273780 2014-06-12        kinaba: 		for(int S=A; S<=B; ++S)
d3b1273780 2014-06-12        kinaba: 			if(!isp[S-1] && !has_dec[S-1])
d3b1273780 2014-06-12        kinaba: 				sum += S;
d3b1273780 2014-06-12        kinaba: 		return sum;
d3b1273780 2014-06-12        kinaba: 	}
d3b1273780 2014-06-12        kinaba: };
d3b1273780 2014-06-12        kinaba: 
d3b1273780 2014-06-12        kinaba: // BEGIN CUT HERE
d3b1273780 2014-06-12        kinaba: #include <ctime>
d3b1273780 2014-06-12        kinaba: double start_time; string timer()
d3b1273780 2014-06-12        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
d3b1273780 2014-06-12        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
d3b1273780 2014-06-12        kinaba:  { os << "{ ";
d3b1273780 2014-06-12        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
d3b1273780 2014-06-12        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
d3b1273780 2014-06-12        kinaba: void verify_case(const long long& Expected, const long long& Received) {
d3b1273780 2014-06-12        kinaba:  bool ok = (Expected == Received);
d3b1273780 2014-06-12        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
d3b1273780 2014-06-12        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
d3b1273780 2014-06-12        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
d3b1273780 2014-06-12        kinaba: #define END	 verify_case(_, SumAndProductPuzzle().getSum(A, B));}
d3b1273780 2014-06-12        kinaba: int main(){
d3b1273780 2014-06-12        kinaba: 
d3b1273780 2014-06-12        kinaba: CASE(0)
d3b1273780 2014-06-12        kinaba: 	int A = 30;
d3b1273780 2014-06-12        kinaba: 	int B = 33;
d3b1273780 2014-06-12        kinaba: 	long long _ = 33LL;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(1)
d3b1273780 2014-06-12        kinaba: 	int A = 8;
d3b1273780 2014-06-12        kinaba: 	int B = 11;
d3b1273780 2014-06-12        kinaba: 	long long _ = 19LL;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(2)
d3b1273780 2014-06-12        kinaba: 	int A = 40;
d3b1273780 2014-06-12        kinaba: 	int B = 43;
d3b1273780 2014-06-12        kinaba: 	long long _ = 0LL;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(3)
d3b1273780 2014-06-12        kinaba: 	int A = 47;
d3b1273780 2014-06-12        kinaba: 	int B = 74;
d3b1273780 2014-06-12        kinaba: 	long long _ = 168LL;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(4)
d3b1273780 2014-06-12        kinaba: 	int A = 1;
d3b1273780 2014-06-12        kinaba: 	int B = 2;
d3b1273780 2014-06-12        kinaba: 	long long _ = 0LL;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(5)
d3b1273780 2014-06-12        kinaba: 	int A = 1;
d3b1273780 2014-06-12        kinaba: 	int B = 5000000;
d3b1273780 2014-06-12        kinaba: 	long long _ = -1LL;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: CASE(6)
d3b1273780 2014-06-12        kinaba: 	int A = 1;
d3b1273780 2014-06-12        kinaba: 	int B = 1;
d3b1273780 2014-06-12        kinaba: 	long long _ = 0LL;
d3b1273780 2014-06-12        kinaba: END
d3b1273780 2014-06-12        kinaba: }
d3b1273780 2014-06-12        kinaba: // END CUT HERE