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 RadarFinder { public: 4fd800b3a8 2011-02-23 kinaba: int possibleLocations(int x1, int y1, int r1, int x2, int y2, int r2) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: if( x1==x2 && y1==y2 ) 4fd800b3a8 2011-02-23 kinaba: return r1==r2 ? -1 : 0; 4fd800b3a8 2011-02-23 kinaba: LL rr = LL(x1-x2)*(x1-x2) + LL(y1-y2)*(y1-y2); 4fd800b3a8 2011-02-23 kinaba: LL p12 = LL(r1+r2)*(r1+r2); 4fd800b3a8 2011-02-23 kinaba: LL m12 = LL(r1-r2)*(r1-r2); 4fd800b3a8 2011-02-23 kinaba: if( rr > p12 ) 4fd800b3a8 2011-02-23 kinaba: return 0; 4fd800b3a8 2011-02-23 kinaba: else if( rr == p12 ) 4fd800b3a8 2011-02-23 kinaba: return 1; 4fd800b3a8 2011-02-23 kinaba: else 4fd800b3a8 2011-02-23 kinaba: if( rr < m12 ) 4fd800b3a8 2011-02-23 kinaba: return 0; 4fd800b3a8 2011-02-23 kinaba: else if( rr == m12 ) 4fd800b3a8 2011-02-23 kinaba: return 1; 4fd800b3a8 2011-02-23 kinaba: else 4fd800b3a8 2011-02-23 kinaba: return 2; 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(_, RadarFinder().possibleLocations(x1, y1, r1, x2, y2, r2));} 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 x1 = 0; 4fd800b3a8 2011-02-23 kinaba: int y1 = 0; 4fd800b3a8 2011-02-23 kinaba: int r1 = 13; 4fd800b3a8 2011-02-23 kinaba: int x2 = 40; 4fd800b3a8 2011-02-23 kinaba: int y2 = 0; 4fd800b3a8 2011-02-23 kinaba: int r2 = 37; 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 x1 = 0; 4fd800b3a8 2011-02-23 kinaba: int y1 = 0; 4fd800b3a8 2011-02-23 kinaba: int r1 = 3; 4fd800b3a8 2011-02-23 kinaba: int x2 = 0; 4fd800b3a8 2011-02-23 kinaba: int y2 = 7; 4fd800b3a8 2011-02-23 kinaba: int r2 = 4; 4fd800b3a8 2011-02-23 kinaba: int _ = 1; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(2) 4fd800b3a8 2011-02-23 kinaba: int x1 = 0; 4fd800b3a8 2011-02-23 kinaba: int y1 = 0; 4fd800b3a8 2011-02-23 kinaba: int r1 = 5; 4fd800b3a8 2011-02-23 kinaba: int x2 = 10; 4fd800b3a8 2011-02-23 kinaba: int y2 = 10; 4fd800b3a8 2011-02-23 kinaba: int r2 = 3; 4fd800b3a8 2011-02-23 kinaba: int _ = 0; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(3) 4fd800b3a8 2011-02-23 kinaba: int x1 = 0; 4fd800b3a8 2011-02-23 kinaba: int y1 = 0; 4fd800b3a8 2011-02-23 kinaba: int r1 = 1; 4fd800b3a8 2011-02-23 kinaba: int x2 = 0; 4fd800b3a8 2011-02-23 kinaba: int y2 = 0; 4fd800b3a8 2011-02-23 kinaba: int r2 = 1; 4fd800b3a8 2011-02-23 kinaba: int _ = -1; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(4) 4fd800b3a8 2011-02-23 kinaba: int x1 = 1; 4fd800b3a8 2011-02-23 kinaba: int y1 = 1; 4fd800b3a8 2011-02-23 kinaba: int r1 = 1; 4fd800b3a8 2011-02-23 kinaba: int x2 = 1; 4fd800b3a8 2011-02-23 kinaba: int y2 = 1; 4fd800b3a8 2011-02-23 kinaba: int r2 = 2; 4fd800b3a8 2011-02-23 kinaba: int _ = 0; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(5) 4fd800b3a8 2011-02-23 kinaba: int x1 = -100000000; 4fd800b3a8 2011-02-23 kinaba: int y1 = -100000000; 4fd800b3a8 2011-02-23 kinaba: int r1 = 141421357; 4fd800b3a8 2011-02-23 kinaba: int x2 = 100000000; 4fd800b3a8 2011-02-23 kinaba: int y2 = 100000000; 4fd800b3a8 2011-02-23 kinaba: int r2 = 141421357; 4fd800b3a8 2011-02-23 kinaba: int _ = 2; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(6) 4fd800b3a8 2011-02-23 kinaba: int x1 = 0; 4fd800b3a8 2011-02-23 kinaba: int y1 = 0; 4fd800b3a8 2011-02-23 kinaba: int r1 = 5; 4fd800b3a8 2011-02-23 kinaba: int x2 = 1; 4fd800b3a8 2011-02-23 kinaba: int y2 = 0; 4fd800b3a8 2011-02-23 kinaba: int r2 = 4; 4fd800b3a8 2011-02-23 kinaba: int _ = 1; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(7) 4fd800b3a8 2011-02-23 kinaba: int x1 = -1000000000; 4fd800b3a8 2011-02-23 kinaba: int y1 = -1000000000; 4fd800b3a8 2011-02-23 kinaba: int r1 = 1000000000; 4fd800b3a8 2011-02-23 kinaba: int x2 = -999999999; 4fd800b3a8 2011-02-23 kinaba: int y2 = 1000000000; 4fd800b3a8 2011-02-23 kinaba: int r2 = 1000000000; 4fd800b3a8 2011-02-23 kinaba: int _ = 0; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: // END CUT HERE