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 CrouchingAmoebas { public: 4fd800b3a8 2011-02-23 kinaba: int count(vector <int> x, vector <int> y, int A, int T) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: int answer = 0; 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: const int N = x.size(); 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: vector<int> ys, xs; 4fd800b3a8 2011-02-23 kinaba: for(int i=0; i<N; ++i) 4fd800b3a8 2011-02-23 kinaba: for(int dy=-T; dy<=+T; ++dy) 4fd800b3a8 2011-02-23 kinaba: ys.push_back(y[i]+dy); 4fd800b3a8 2011-02-23 kinaba: for(int i=0; i<N; ++i) 4fd800b3a8 2011-02-23 kinaba: for(int dx=-T; dx<=+T; ++dx) 4fd800b3a8 2011-02-23 kinaba: xs.push_back(x[i]+dx); 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: for(int i=0; i<xs.size(); ++i) 4fd800b3a8 2011-02-23 kinaba: for(int k=0; k<ys.size(); ++k) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: int Y = ys[k]; 4fd800b3a8 2011-02-23 kinaba: int X = xs[i]; 4fd800b3a8 2011-02-23 kinaba: vector<unsigned int> ds; 4fd800b3a8 2011-02-23 kinaba: for(int j=0; j<N; ++j) { 4fd800b3a8 2011-02-23 kinaba: unsigned int d = distance(Y,X,A,y[j],x[j]); 4fd800b3a8 2011-02-23 kinaba: if( d <= T ) 4fd800b3a8 2011-02-23 kinaba: ds.push_back(d); 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: sort( ds.begin(), ds.end() ); 4fd800b3a8 2011-02-23 kinaba: int e=T, c=0; 4fd800b3a8 2011-02-23 kinaba: for(int j=0; j<ds.size() && ds[j]<=e; ++j) 4fd800b3a8 2011-02-23 kinaba: e-=ds[j], ++c; 4fd800b3a8 2011-02-23 kinaba: answer = max(answer, c); 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: return answer; 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: static unsigned int distance(int Y, int X, int A, int y, int x) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: unsigned int yd = (y<Y ? Y-y : Y+A<y ? y-(Y+A) : 0); 4fd800b3a8 2011-02-23 kinaba: unsigned int xd = (x<X ? X-x : X+A<x ? x-(X+A) : 0); 4fd800b3a8 2011-02-23 kinaba: return xd + yd; 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(_, CrouchingAmoebas().count(x, y, A, T));} 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 x_[] = {0,0}; 4fd800b3a8 2011-02-23 kinaba: vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_)); 4fd800b3a8 2011-02-23 kinaba: int y_[] = {0,1}; 4fd800b3a8 2011-02-23 kinaba: vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_)); 4fd800b3a8 2011-02-23 kinaba: int A = 1; 4fd800b3a8 2011-02-23 kinaba: int T = 1; 4fd800b3a8 2011-02-23 kinaba: int _ = 2; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(1) 4fd800b3a8 2011-02-23 kinaba: int x_[] = {0,1,2}; 4fd800b3a8 2011-02-23 kinaba: vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_)); 4fd800b3a8 2011-02-23 kinaba: int y_[] = {1,2,0}; 4fd800b3a8 2011-02-23 kinaba: vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_)); 4fd800b3a8 2011-02-23 kinaba: int A = 1; 4fd800b3a8 2011-02-23 kinaba: int T = 1; 4fd800b3a8 2011-02-23 kinaba: int _ = 2; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(2) 4fd800b3a8 2011-02-23 kinaba: int x_[] = {0,1,2}; 4fd800b3a8 2011-02-23 kinaba: vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_)); 4fd800b3a8 2011-02-23 kinaba: int y_[] = {1,2,0}; 4fd800b3a8 2011-02-23 kinaba: vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_)); 4fd800b3a8 2011-02-23 kinaba: int A = 1; 4fd800b3a8 2011-02-23 kinaba: int T = 2; 4fd800b3a8 2011-02-23 kinaba: int _ = 3; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(3) 4fd800b3a8 2011-02-23 kinaba: int x_[] = {0,0,3,3}; 4fd800b3a8 2011-02-23 kinaba: vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_)); 4fd800b3a8 2011-02-23 kinaba: int y_[] = {0,3,0,3}; 4fd800b3a8 2011-02-23 kinaba: vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_)); 4fd800b3a8 2011-02-23 kinaba: int A = 2; 4fd800b3a8 2011-02-23 kinaba: int T = 4; 4fd800b3a8 2011-02-23 kinaba: int _ = 4; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(4) 4fd800b3a8 2011-02-23 kinaba: int x_[] = {-1000000000,1000000000}; 4fd800b3a8 2011-02-23 kinaba: vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_)); 4fd800b3a8 2011-02-23 kinaba: int y_[] = {-1000000000,1000000000}; 4fd800b3a8 2011-02-23 kinaba: vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_)); 4fd800b3a8 2011-02-23 kinaba: int A = 1; 4fd800b3a8 2011-02-23 kinaba: int T = 15; 4fd800b3a8 2011-02-23 kinaba: int _ = 1; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: /* 4fd800b3a8 2011-02-23 kinaba: CASE(5) 4fd800b3a8 2011-02-23 kinaba: int x_[] = ; 4fd800b3a8 2011-02-23 kinaba: vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_)); 4fd800b3a8 2011-02-23 kinaba: int y_[] = ; 4fd800b3a8 2011-02-23 kinaba: vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_)); 4fd800b3a8 2011-02-23 kinaba: int A = ; 4fd800b3a8 2011-02-23 kinaba: int T = ; 4fd800b3a8 2011-02-23 kinaba: int _ = ; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(6) 4fd800b3a8 2011-02-23 kinaba: int x_[] = ; 4fd800b3a8 2011-02-23 kinaba: vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_)); 4fd800b3a8 2011-02-23 kinaba: int y_[] = ; 4fd800b3a8 2011-02-23 kinaba: vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_)); 4fd800b3a8 2011-02-23 kinaba: int A = ; 4fd800b3a8 2011-02-23 kinaba: int T = ; 4fd800b3a8 2011-02-23 kinaba: int _ = ; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: */ 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: // END CUT HERE