4fd800b3a8 2011-02-23        kinaba: #include <iostream>
4fd800b3a8 2011-02-23        kinaba: #include <sstream>
4fd800b3a8 2011-02-23        kinaba: #include <iomanip>
4fd800b3a8 2011-02-23        kinaba: #include <vector>
4fd800b3a8 2011-02-23        kinaba: #include <string>
4fd800b3a8 2011-02-23        kinaba: #include <map>
4fd800b3a8 2011-02-23        kinaba: #include <set>
4fd800b3a8 2011-02-23        kinaba: #include <algorithm>
4fd800b3a8 2011-02-23        kinaba: #include <numeric>
4fd800b3a8 2011-02-23        kinaba: #include <iterator>
4fd800b3a8 2011-02-23        kinaba: #include <complex>
4fd800b3a8 2011-02-23        kinaba: #include <queue>
4fd800b3a8 2011-02-23        kinaba: #include <stack>
4fd800b3a8 2011-02-23        kinaba: #include <cmath>
4fd800b3a8 2011-02-23        kinaba: #include <cassert>
4fd800b3a8 2011-02-23        kinaba: #include <cstring>
4fd800b3a8 2011-02-23        kinaba: using namespace std;
4fd800b3a8 2011-02-23        kinaba: typedef long long LL;
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: class SequenceSums {
4fd800b3a8 2011-02-23        kinaba: public:
4fd800b3a8 2011-02-23        kinaba: 	vector <int> sequence(int N, int LL)
4fd800b3a8 2011-02-23        kinaba: 	{
4fd800b3a8 2011-02-23        kinaba: 		for(int L=LL; L<=100; ++L)
4fd800b3a8 2011-02-23        kinaba: 		{
4fd800b3a8 2011-02-23        kinaba: 			int Z = N - L*(L-1)/2;
4fd800b3a8 2011-02-23        kinaba: 			if( Z % L )
4fd800b3a8 2011-02-23        kinaba: 				continue;
4fd800b3a8 2011-02-23        kinaba: 			int a = Z / L;
4fd800b3a8 2011-02-23        kinaba: 			if( a < 0 )
4fd800b3a8 2011-02-23        kinaba: 				continue;
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: 			vector<int> ans;
4fd800b3a8 2011-02-23        kinaba: 			for(int x=a; x<a+L; ++x)
4fd800b3a8 2011-02-23        kinaba: 				ans.push_back(x);
4fd800b3a8 2011-02-23        kinaba: 			return ans;
4fd800b3a8 2011-02-23        kinaba: 		}
4fd800b3a8 2011-02-23        kinaba: 		return vector<int>();
4fd800b3a8 2011-02-23        kinaba: 	}
4fd800b3a8 2011-02-23        kinaba: };
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: // BEGIN CUT HERE
4fd800b3a8 2011-02-23        kinaba: #include <ctime>
4fd800b3a8 2011-02-23        kinaba: double start_time;string timer() { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: template <typename T> string print_array(const vector<T> &V) { ostringstream os; os << "{ "; for (typename vector<T>::const_iterator iter = V.begin(); iter != V.end(); ++iter) os << '\"' << *iter << "\","; os << " }"; return os.str(); }
4fd800b3a8 2011-02-23        kinaba: int verify_case(const vector <int> &Expected, const vector <int> &Received) { if (Expected == Received) cerr << "PASSED" << timer() << endl; else { cerr << "FAILED" << timer() << endl; cerr << "\tExpected: " << print_array(Expected) << endl; cerr << "\tReceived: " << print_array(Received) << endl; } return 0;}
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: template<int N> struct Case_ { Case_(){start_time=clock();} };
4fd800b3a8 2011-02-23        kinaba: char Test_(...);
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<0>) {
4fd800b3a8 2011-02-23        kinaba: 	int N = 18;
4fd800b3a8 2011-02-23        kinaba: 	int L = 2;
4fd800b3a8 2011-02-23        kinaba: 	int RetVal_[] = {5, 6, 7 };
4fd800b3a8 2011-02-23        kinaba: 	  vector <int> RetVal(RetVal_, RetVal_+sizeof(RetVal_)/sizeof(*RetVal_));
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, SequenceSums().sequence(N, L)); }
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<1>) {
4fd800b3a8 2011-02-23        kinaba: 	int N = 18;
4fd800b3a8 2011-02-23        kinaba: 	int L = 4;
4fd800b3a8 2011-02-23        kinaba: 	int RetVal_[] = {3, 4, 5, 6 };
4fd800b3a8 2011-02-23        kinaba: 	  vector <int> RetVal(RetVal_, RetVal_+sizeof(RetVal_)/sizeof(*RetVal_));
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, SequenceSums().sequence(N, L)); }
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<2>) {
4fd800b3a8 2011-02-23        kinaba: 	int N = 18;
4fd800b3a8 2011-02-23        kinaba: 	int L = 5;
4fd800b3a8 2011-02-23        kinaba: 	vector <int> RetVal;
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, SequenceSums().sequence(N, L)); }
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<3>) {
4fd800b3a8 2011-02-23        kinaba: 	int N = 45;
4fd800b3a8 2011-02-23        kinaba: 	int L = 10;
4fd800b3a8 2011-02-23        kinaba: 	int RetVal_[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
4fd800b3a8 2011-02-23        kinaba: 	  vector <int> RetVal(RetVal_, RetVal_+sizeof(RetVal_)/sizeof(*RetVal_));
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, SequenceSums().sequence(N, L)); }
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<4>) {
4fd800b3a8 2011-02-23        kinaba: 	int N = 1000000000;
4fd800b3a8 2011-02-23        kinaba: 	int L = 2;
4fd800b3a8 2011-02-23        kinaba: 	int RetVal_[] = {199999998, 199999999, 200000000, 200000001, 200000002 };
4fd800b3a8 2011-02-23        kinaba: 	  vector <int> RetVal(RetVal_, RetVal_+sizeof(RetVal_)/sizeof(*RetVal_));
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, SequenceSums().sequence(N, L)); }
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: template<int N> void Run_() { cerr << "Test Case #" << N << "..." << flush; Test_(Case_<N>()); Run_<sizeof(Test_(Case_<N+1>()))==1 ? -1 : N+1>(); }
4fd800b3a8 2011-02-23        kinaba: template<>      void Run_<-1>() {}
4fd800b3a8 2011-02-23        kinaba: int main() { Run_<0>(); }
4fd800b3a8 2011-02-23        kinaba: // END CUT HERE
4fd800b3a8 2011-02-23        kinaba: