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 <functional>
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: typedef complex<double> CMP;
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: class RabbitNumber { public:
4fd800b3a8 2011-02-23        kinaba: 	LL dsum(LL n) {
4fd800b3a8 2011-02-23        kinaba: 		LL x = 0;
4fd800b3a8 2011-02-23        kinaba: 		while(n) {
4fd800b3a8 2011-02-23        kinaba: 			x+=n%10;
4fd800b3a8 2011-02-23        kinaba: 			n/=10;
4fd800b3a8 2011-02-23        kinaba: 		}
4fd800b3a8 2011-02-23        kinaba: 		return x;
4fd800b3a8 2011-02-23        kinaba: 	}
4fd800b3a8 2011-02-23        kinaba: 	bool isRabbit(LL n) {
4fd800b3a8 2011-02-23        kinaba: 		LL a = dsum(n);
4fd800b3a8 2011-02-23        kinaba: 		LL b = dsum(n*n);
4fd800b3a8 2011-02-23        kinaba: 		return b==a*a;
4fd800b3a8 2011-02-23        kinaba: 	}
4fd800b3a8 2011-02-23        kinaba: 	void enumerate(int s, LL c, vector<int>& v)
4fd800b3a8 2011-02-23        kinaba: 	{
4fd800b3a8 2011-02-23        kinaba: 		if( c > 1000000000 )
4fd800b3a8 2011-02-23        kinaba: 			return;
4fd800b3a8 2011-02-23        kinaba: 		if( s == 0 )
4fd800b3a8 2011-02-23        kinaba: 			if( isRabbit(c) )
4fd800b3a8 2011-02-23        kinaba: 				v.push_back(int(c));
4fd800b3a8 2011-02-23        kinaba: 		for(int i=(c==0?1:0); i<=s && i<=9; ++i)
4fd800b3a8 2011-02-23        kinaba: 			enumerate(s-i, c*10+i, v);
4fd800b3a8 2011-02-23        kinaba: 	}
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: 	int theCount(int low, int high)
4fd800b3a8 2011-02-23        kinaba: 	{
4fd800b3a8 2011-02-23        kinaba: 		vector<int> v;
4fd800b3a8 2011-02-23        kinaba: 		for(int s=1; s<=15; ++s)
4fd800b3a8 2011-02-23        kinaba: 			enumerate(s, 0, v);
4fd800b3a8 2011-02-23        kinaba: 		sort(v.begin(), v.end());
4fd800b3a8 2011-02-23        kinaba: 		return upper_bound(v.begin(), v.end(), high)
4fd800b3a8 2011-02-23        kinaba: 		     - lower_bound(v.begin(), v.end(), low);
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()
4fd800b3a8 2011-02-23        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
4fd800b3a8 2011-02-23        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
4fd800b3a8 2011-02-23        kinaba:  { os << "{ ";
4fd800b3a8 2011-02-23        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
4fd800b3a8 2011-02-23        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
4fd800b3a8 2011-02-23        kinaba: void verify_case(const int& Expected, const int& Received) {
4fd800b3a8 2011-02-23        kinaba:  bool ok = (Expected == Received);
4fd800b3a8 2011-02-23        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
4fd800b3a8 2011-02-23        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
4fd800b3a8 2011-02-23        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
4fd800b3a8 2011-02-23        kinaba: #define END	 verify_case(_, RabbitNumber().theCount(low, high));}
4fd800b3a8 2011-02-23        kinaba: int main(){
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: CASE(0)
4fd800b3a8 2011-02-23        kinaba: 	int low = 22;
4fd800b3a8 2011-02-23        kinaba: 	int high = 22;
4fd800b3a8 2011-02-23        kinaba: 	int _ = 1;
4fd800b3a8 2011-02-23        kinaba: END
4fd800b3a8 2011-02-23        kinaba: CASE(1)
4fd800b3a8 2011-02-23        kinaba: 	int low = 484;
4fd800b3a8 2011-02-23        kinaba: 	int high = 484;
4fd800b3a8 2011-02-23        kinaba: 	int _ = 0;
4fd800b3a8 2011-02-23        kinaba: END
4fd800b3a8 2011-02-23        kinaba: CASE(2)
4fd800b3a8 2011-02-23        kinaba: 	int low = 1;
4fd800b3a8 2011-02-23        kinaba: 	int high = 58;
4fd800b3a8 2011-02-23        kinaba: 	int _ = 12;
4fd800b3a8 2011-02-23        kinaba: END
4fd800b3a8 2011-02-23        kinaba: CASE(3)
4fd800b3a8 2011-02-23        kinaba: 	int low = 58;
4fd800b3a8 2011-02-23        kinaba: 	int high = 484;
4fd800b3a8 2011-02-23        kinaba: 	int _ = 24;
4fd800b3a8 2011-02-23        kinaba: END
4fd800b3a8 2011-02-23        kinaba: CASE(4)
4fd800b3a8 2011-02-23        kinaba: 	int low = 1000000000;
4fd800b3a8 2011-02-23        kinaba: 	int high = 1000000000;
4fd800b3a8 2011-02-23        kinaba: 	int _ = 1;
4fd800b3a8 2011-02-23        kinaba: END
4fd800b3a8 2011-02-23        kinaba: CASE(5)
4fd800b3a8 2011-02-23        kinaba: 	int low = 1;
4fd800b3a8 2011-02-23        kinaba: 	int high = 1;
4fd800b3a8 2011-02-23        kinaba: 	int _ = 1;
4fd800b3a8 2011-02-23        kinaba: END
4fd800b3a8 2011-02-23        kinaba: CASE(6)
4fd800b3a8 2011-02-23        kinaba: 	int low = 1;
4fd800b3a8 2011-02-23        kinaba: 	int high = 1000000;
4fd800b3a8 2011-02-23        kinaba: 	int _ = 615;
4fd800b3a8 2011-02-23        kinaba: END
4fd800b3a8 2011-02-23        kinaba: CASE(7)
4fd800b3a8 2011-02-23        kinaba: 	int low = 1;
4fd800b3a8 2011-02-23        kinaba: 	int high = 1000000000;
4fd800b3a8 2011-02-23        kinaba: 	int _ = -1;
4fd800b3a8 2011-02-23        kinaba: END
4fd800b3a8 2011-02-23        kinaba: }
4fd800b3a8 2011-02-23        kinaba: // END CUT HERE