1f14a4420e 2015-12-01        kinaba: #include <iostream>
1f14a4420e 2015-12-01        kinaba: #include <sstream>
1f14a4420e 2015-12-01        kinaba: #include <iomanip>
1f14a4420e 2015-12-01        kinaba: #include <vector>
1f14a4420e 2015-12-01        kinaba: #include <string>
1f14a4420e 2015-12-01        kinaba: #include <map>
1f14a4420e 2015-12-01        kinaba: #include <set>
1f14a4420e 2015-12-01        kinaba: #include <algorithm>
1f14a4420e 2015-12-01        kinaba: #include <numeric>
1f14a4420e 2015-12-01        kinaba: #include <iterator>
1f14a4420e 2015-12-01        kinaba: #include <functional>
1f14a4420e 2015-12-01        kinaba: #include <complex>
1f14a4420e 2015-12-01        kinaba: #include <queue>
1f14a4420e 2015-12-01        kinaba: #include <stack>
1f14a4420e 2015-12-01        kinaba: #include <cmath>
1f14a4420e 2015-12-01        kinaba: #include <cassert>
1f14a4420e 2015-12-01        kinaba: #include <tuple>
1f14a4420e 2015-12-01        kinaba: using namespace std;
1f14a4420e 2015-12-01        kinaba: typedef long long LL;
1f14a4420e 2015-12-01        kinaba: typedef complex<double> CMP;
1f14a4420e 2015-12-01        kinaba: 
1f14a4420e 2015-12-01        kinaba: static const unsigned MODVAL = 1000000007;
1f14a4420e 2015-12-01        kinaba: struct mint
1f14a4420e 2015-12-01        kinaba: {
1f14a4420e 2015-12-01        kinaba: 	unsigned val;
1f14a4420e 2015-12-01        kinaba: 	mint():val(0){}
1f14a4420e 2015-12-01        kinaba: 	mint(int      x):val(x%MODVAL) {}
1f14a4420e 2015-12-01        kinaba: 	mint(unsigned x):val(x%MODVAL) {}
1f14a4420e 2015-12-01        kinaba: 	mint(LL       x):val(x%MODVAL) {}
1f14a4420e 2015-12-01        kinaba: };
1f14a4420e 2015-12-01        kinaba: mint& operator+=(mint& x, mint y) { return x = x.val+y.val; }
1f14a4420e 2015-12-01        kinaba: mint& operator-=(mint& x, mint y) { return x = x.val-y.val+MODVAL; }
1f14a4420e 2015-12-01        kinaba: mint& operator*=(mint& x, mint y) { return x = LL(x.val)*y.val; }
1f14a4420e 2015-12-01        kinaba: mint operator+(mint x, mint y) { return x+=y; }
1f14a4420e 2015-12-01        kinaba: mint operator-(mint x, mint y) { return x-=y; }
1f14a4420e 2015-12-01        kinaba: mint operator*(mint x, mint y) { return x*=y; }
1f14a4420e 2015-12-01        kinaba: 
1f14a4420e 2015-12-01        kinaba: class BearCavalry { public:
1f14a4420e 2015-12-01        kinaba: 	int countAssignments(vector <int> warriors, vector <int> horses)
1f14a4420e 2015-12-01        kinaba: 	{
1f14a4420e 2015-12-01        kinaba: 		mint total = 0;
1f14a4420e 2015-12-01        kinaba: 
1f14a4420e 2015-12-01        kinaba: 		const int W = warriors[0];
1f14a4420e 2015-12-01        kinaba: 		warriors.erase(warriors.begin());
1f14a4420e 2015-12-01        kinaba: 		sort(warriors.begin(), warriors.end());
1f14a4420e 2015-12-01        kinaba: 		sort(horses.begin(), horses.end());
1f14a4420e 2015-12-01        kinaba: 
1f14a4420e 2015-12-01        kinaba: 		for(int x=0; x<horses.size(); ++x) {
1f14a4420e 2015-12-01        kinaba: 			const int H = horses[x];
1f14a4420e 2015-12-01        kinaba: 			vector<int> hs(horses.begin(), horses.begin()+x);
1f14a4420e 2015-12-01        kinaba: 			hs.insert(hs.end(), horses.begin()+x+1, horses.end());
1f14a4420e 2015-12-01        kinaba: 			total += cnt(W*H, warriors, hs);
1f14a4420e 2015-12-01        kinaba: 		}
1f14a4420e 2015-12-01        kinaba: 		return total.val;
1f14a4420e 2015-12-01        kinaba: 	}
1f14a4420e 2015-12-01        kinaba: 
1f14a4420e 2015-12-01        kinaba: 	mint cnt(int TOP, vector<int> w, vector<int> h)
1f14a4420e 2015-12-01        kinaba: 	{
1f14a4420e 2015-12-01        kinaba: 		mint total = 1;
1f14a4420e 2015-12-01        kinaba: 		for(int i=0; i<w.size(); ++i) {
1f14a4420e 2015-12-01        kinaba: 			int W = w[w.size()-1-i];
1f14a4420e 2015-12-01        kinaba: 
1f14a4420e 2015-12-01        kinaba: 			int c=0;
1f14a4420e 2015-12-01        kinaba: 			for(int hk: h)
1f14a4420e 2015-12-01        kinaba: 				c += (hk*W < TOP);
1f14a4420e 2015-12-01        kinaba: 			c -= i;
1f14a4420e 2015-12-01        kinaba: 			if(c <= 0)
1f14a4420e 2015-12-01        kinaba: 				return 0;
1f14a4420e 2015-12-01        kinaba: 			total *= c;
1f14a4420e 2015-12-01        kinaba: 		}
1f14a4420e 2015-12-01        kinaba: 		return total;
1f14a4420e 2015-12-01        kinaba: 	}
1f14a4420e 2015-12-01        kinaba: };
1f14a4420e 2015-12-01        kinaba: 
1f14a4420e 2015-12-01        kinaba: // BEGIN CUT HERE
1f14a4420e 2015-12-01        kinaba: #include <ctime>
1f14a4420e 2015-12-01        kinaba: double start_time; string timer()
1f14a4420e 2015-12-01        kinaba:  { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
1f14a4420e 2015-12-01        kinaba: template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
1f14a4420e 2015-12-01        kinaba:  { os << "{ ";
1f14a4420e 2015-12-01        kinaba:    for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
1f14a4420e 2015-12-01        kinaba:    os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
1f14a4420e 2015-12-01        kinaba: void verify_case(const int& Expected, const int& Received) {
1f14a4420e 2015-12-01        kinaba:  bool ok = (Expected == Received);
1f14a4420e 2015-12-01        kinaba:  if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
1f14a4420e 2015-12-01        kinaba:  cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
1f14a4420e 2015-12-01        kinaba: #define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
1f14a4420e 2015-12-01        kinaba: #define END	 verify_case(_, BearCavalry().countAssignments(warriors, horses));}
1f14a4420e 2015-12-01        kinaba: int main(){
1f14a4420e 2015-12-01        kinaba: 
1f14a4420e 2015-12-01        kinaba: CASE(0)
1f14a4420e 2015-12-01        kinaba: 	int warriors_[] = {5,8,4,8};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> warriors(warriors_, warriors_+sizeof(warriors_)/sizeof(*warriors_));
1f14a4420e 2015-12-01        kinaba: 	int horses_[] = {19,40,25,20};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> horses(horses_, horses_+sizeof(horses_)/sizeof(*horses_));
1f14a4420e 2015-12-01        kinaba: 	int _ = 2;
1f14a4420e 2015-12-01        kinaba: END
1f14a4420e 2015-12-01        kinaba: CASE(1)
1f14a4420e 2015-12-01        kinaba: 	int warriors_[] = {1,1};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> warriors(warriors_, warriors_+sizeof(warriors_)/sizeof(*warriors_));
1f14a4420e 2015-12-01        kinaba: 	int horses_[] = {1,1};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> horses(horses_, horses_+sizeof(horses_)/sizeof(*horses_));
1f14a4420e 2015-12-01        kinaba: 	int _ = 0;
1f14a4420e 2015-12-01        kinaba: END
1f14a4420e 2015-12-01        kinaba: CASE(2)
1f14a4420e 2015-12-01        kinaba: 	int warriors_[] = {10,2,10};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> warriors(warriors_, warriors_+sizeof(warriors_)/sizeof(*warriors_));
1f14a4420e 2015-12-01        kinaba: 	int horses_[] = {100,150,200};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> horses(horses_, horses_+sizeof(horses_)/sizeof(*horses_));
1f14a4420e 2015-12-01        kinaba: 	int _ = 3;
1f14a4420e 2015-12-01        kinaba: END
1f14a4420e 2015-12-01        kinaba: CASE(3)
1f14a4420e 2015-12-01        kinaba: 	int warriors_[] = {10,20};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> warriors(warriors_, warriors_+sizeof(warriors_)/sizeof(*warriors_));
1f14a4420e 2015-12-01        kinaba: 	int horses_[] = {1,3};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> horses(horses_, horses_+sizeof(horses_)/sizeof(*horses_));
1f14a4420e 2015-12-01        kinaba: 	int _ = 1;
1f14a4420e 2015-12-01        kinaba: END
1f14a4420e 2015-12-01        kinaba: CASE(4)
1f14a4420e 2015-12-01        kinaba: 	int warriors_[] = {20,20,25,23,24,24,21};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> warriors(warriors_, warriors_+sizeof(warriors_)/sizeof(*warriors_));
1f14a4420e 2015-12-01        kinaba: 	int horses_[] = {20,25,25,20,25,23,20};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> horses(horses_, horses_+sizeof(horses_)/sizeof(*horses_));
1f14a4420e 2015-12-01        kinaba: 	int _ = 0;
1f14a4420e 2015-12-01        kinaba: END
1f14a4420e 2015-12-01        kinaba: CASE(5)
1f14a4420e 2015-12-01        kinaba: 	int warriors_[] = {970,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,
1f14a4420e 2015-12-01        kinaba: 800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800,800};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> warriors(warriors_, warriors_+sizeof(warriors_)/sizeof(*warriors_));
1f14a4420e 2015-12-01        kinaba: 	int horses_[] = {1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,
1f14a4420e 2015-12-01        kinaba: 1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,1000,
1f14a4420e 2015-12-01        kinaba: 1000,1000,1000,1000,1000,1000,1000,1000,1000,1000};
1f14a4420e 2015-12-01        kinaba: 	  vector <int> horses(horses_, horses_+sizeof(horses_)/sizeof(*horses_));
1f14a4420e 2015-12-01        kinaba: 	int _ = 318608048;
1f14a4420e 2015-12-01        kinaba: END
1f14a4420e 2015-12-01        kinaba: /*
1f14a4420e 2015-12-01        kinaba: CASE(6)
1f14a4420e 2015-12-01        kinaba: 	int warriors_[] = ;
1f14a4420e 2015-12-01        kinaba: 	  vector <int> warriors(warriors_, warriors_+sizeof(warriors_)/sizeof(*warriors_));
1f14a4420e 2015-12-01        kinaba: 	int horses_[] = ;
1f14a4420e 2015-12-01        kinaba: 	  vector <int> horses(horses_, horses_+sizeof(horses_)/sizeof(*horses_));
1f14a4420e 2015-12-01        kinaba: 	int _ = ;
1f14a4420e 2015-12-01        kinaba: END
1f14a4420e 2015-12-01        kinaba: CASE(7)
1f14a4420e 2015-12-01        kinaba: 	int warriors_[] = ;
1f14a4420e 2015-12-01        kinaba: 	  vector <int> warriors(warriors_, warriors_+sizeof(warriors_)/sizeof(*warriors_));
1f14a4420e 2015-12-01        kinaba: 	int horses_[] = ;
1f14a4420e 2015-12-01        kinaba: 	  vector <int> horses(horses_, horses_+sizeof(horses_)/sizeof(*horses_));
1f14a4420e 2015-12-01        kinaba: 	int _ = ;
1f14a4420e 2015-12-01        kinaba: END
1f14a4420e 2015-12-01        kinaba: */
1f14a4420e 2015-12-01        kinaba: }
1f14a4420e 2015-12-01        kinaba: // END CUT HERE