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 InternetSecurity { public: 4fd800b3a8 2011-02-23 kinaba: vector <string> determineWebsite(vector <string> address, vector <string> keyword, vector <string> dangerous, int threshold) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: int N = address.size(); 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: vector< set<string> > kwd(N); 4fd800b3a8 2011-02-23 kinaba: for(int i=0; i<N; ++i) { 4fd800b3a8 2011-02-23 kinaba: stringstream ss(keyword[i]); 4fd800b3a8 2011-02-23 kinaba: for(string s; ss >> s; ) 4fd800b3a8 2011-02-23 kinaba: kwd[i].insert(s); 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: set<string> dng(dangerous.begin(), dangerous.end()); 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: vector<bool> is_danger(N); 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: bool changed = true; 4fd800b3a8 2011-02-23 kinaba: while( changed ) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: changed = false; 4fd800b3a8 2011-02-23 kinaba: for(int i=0; i<N; ++i) 4fd800b3a8 2011-02-23 kinaba: if( !is_danger[i] ) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: vector<string> buf; 4fd800b3a8 2011-02-23 kinaba: set_intersection( kwd[i].begin(), kwd[i].end(), dng.begin(), dng.end(), back_inserter(buf) ); 4fd800b3a8 2011-02-23 kinaba: if( buf.size() >= threshold ) 4fd800b3a8 2011-02-23 kinaba: { 4fd800b3a8 2011-02-23 kinaba: changed = true; 4fd800b3a8 2011-02-23 kinaba: dng.insert(kwd[i].begin(), kwd[i].end()); 4fd800b3a8 2011-02-23 kinaba: is_danger[i] = true; 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: vector<string> result; 4fd800b3a8 2011-02-23 kinaba: for(int i=0; i<N; ++i) 4fd800b3a8 2011-02-23 kinaba: if( is_danger[i] ) 4fd800b3a8 2011-02-23 kinaba: result.push_back( address[i] ); 4fd800b3a8 2011-02-23 kinaba: return result; 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 vector <string>& Expected, const vector <string>& 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(_, InternetSecurity().determineWebsite(address, keyword, dangerous, threshold));} 4fd800b3a8 2011-02-23 kinaba: int main(){ 4fd800b3a8 2011-02-23 kinaba: 4fd800b3a8 2011-02-23 kinaba: CASE(0) 4fd800b3a8 2011-02-23 kinaba: string address_[] = {"www.topcoder.com", 4fd800b3a8 2011-02-23 kinaba: "www.sindicate_of_evil.com", 4fd800b3a8 2011-02-23 kinaba: "www.happy_citizens.com"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> address(address_, address_+sizeof(address_)/sizeof(*address_)); 4fd800b3a8 2011-02-23 kinaba: string keyword_[] = {"hack encryption decryption internet algorithm", 4fd800b3a8 2011-02-23 kinaba: "signal interference evil snake poison algorithm", 4fd800b3a8 2011-02-23 kinaba: "flower baloon topcoder blue sky sea"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> keyword(keyword_, keyword_+sizeof(keyword_)/sizeof(*keyword_)); 4fd800b3a8 2011-02-23 kinaba: string dangerous_[] = {"hack","encryption","decryption","interference","signal","internet"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> dangerous(dangerous_, dangerous_+sizeof(dangerous_)/sizeof(*dangerous_)); 4fd800b3a8 2011-02-23 kinaba: int threshold = 3; 4fd800b3a8 2011-02-23 kinaba: string __[] = {"www.topcoder.com", "www.sindicate_of_evil.com" }; 4fd800b3a8 2011-02-23 kinaba: vector <string> _(__, __+sizeof(__)/sizeof(*__)); 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(1) 4fd800b3a8 2011-02-23 kinaba: string address_[] = {"brokenlink","flowerpower.net","purchasedomain.com"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> address(address_, address_+sizeof(address_)/sizeof(*address_)); 4fd800b3a8 2011-02-23 kinaba: string keyword_[] = {"broken","rose tulips","cheap free domain biggest greatest"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> keyword(keyword_, keyword_+sizeof(keyword_)/sizeof(*keyword_)); 4fd800b3a8 2011-02-23 kinaba: string dangerous_[] = {"biggest","enemy","hideout"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> dangerous(dangerous_, dangerous_+sizeof(dangerous_)/sizeof(*dangerous_)); 4fd800b3a8 2011-02-23 kinaba: int threshold = 2; 4fd800b3a8 2011-02-23 kinaba: vector <string> _; 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(2) 4fd800b3a8 2011-02-23 kinaba: string address_[] = {"a..a.ab.","...aa.b"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> address(address_, address_+sizeof(address_)/sizeof(*address_)); 4fd800b3a8 2011-02-23 kinaba: string keyword_[] = {"a bc def","def ghij klmno"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> keyword(keyword_, keyword_+sizeof(keyword_)/sizeof(*keyword_)); 4fd800b3a8 2011-02-23 kinaba: string dangerous_[] = {"a","b","c","d","e"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> dangerous(dangerous_, dangerous_+sizeof(dangerous_)/sizeof(*dangerous_)); 4fd800b3a8 2011-02-23 kinaba: int threshold = 1; 4fd800b3a8 2011-02-23 kinaba: string __[] = {"a..a.ab.", "...aa.b" }; 4fd800b3a8 2011-02-23 kinaba: vector <string> _(__, __+sizeof(__)/sizeof(*__)); 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(3) 4fd800b3a8 2011-02-23 kinaba: string address_[] = {"www.tsa.gov"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> address(address_, address_+sizeof(address_)/sizeof(*address_)); 4fd800b3a8 2011-02-23 kinaba: string keyword_[] = {"information assurance signal intelligence research"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> keyword(keyword_, keyword_+sizeof(keyword_)/sizeof(*keyword_)); 4fd800b3a8 2011-02-23 kinaba: string dangerous_[] = {"signal","assurance","penguin"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> dangerous(dangerous_, dangerous_+sizeof(dangerous_)/sizeof(*dangerous_)); 4fd800b3a8 2011-02-23 kinaba: int threshold = 2; 4fd800b3a8 2011-02-23 kinaba: string __[] = {"www.tsa.gov" }; 4fd800b3a8 2011-02-23 kinaba: vector <string> _(__, __+sizeof(__)/sizeof(*__)); 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: CASE(4) 4fd800b3a8 2011-02-23 kinaba: string address_[] = {"","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","",""}; 4fd800b3a8 2011-02-23 kinaba: vector <string> address(address_, address_+sizeof(address_)/sizeof(*address_)); 4fd800b3a8 2011-02-23 kinaba: string keyword_[] = {"a b c d e f g h i j k l m n o p q r s t u v w x y", 4fd800b3a8 2011-02-23 kinaba: "A B C D E F G H I J K L M N O P Q R S T U V W X Y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y","a b c d e f g h i j k l m n o p q r s t u v w x y"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> keyword(keyword_, keyword_+sizeof(keyword_)/sizeof(*keyword_)); 4fd800b3a8 2011-02-23 kinaba: string dangerous_[] = {"a","b","c"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> dangerous(dangerous_, dangerous_+sizeof(dangerous_)/sizeof(*dangerous_)); 4fd800b3a8 2011-02-23 kinaba: int threshold = 3; 4fd800b3a8 2011-02-23 kinaba: string __[] = {"XXX"}; 4fd800b3a8 2011-02-23 kinaba: vector <string> _(__, __+sizeof(__)/sizeof(*__)); 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: /* 4fd800b3a8 2011-02-23 kinaba: CASE(5) 4fd800b3a8 2011-02-23 kinaba: string address_[] = ; 4fd800b3a8 2011-02-23 kinaba: vector <string> address(address_, address_+sizeof(address_)/sizeof(*address_)); 4fd800b3a8 2011-02-23 kinaba: string keyword_[] = ; 4fd800b3a8 2011-02-23 kinaba: vector <string> keyword(keyword_, keyword_+sizeof(keyword_)/sizeof(*keyword_)); 4fd800b3a8 2011-02-23 kinaba: string dangerous_[] = ; 4fd800b3a8 2011-02-23 kinaba: vector <string> dangerous(dangerous_, dangerous_+sizeof(dangerous_)/sizeof(*dangerous_)); 4fd800b3a8 2011-02-23 kinaba: int threshold = ; 4fd800b3a8 2011-02-23 kinaba: string __[] = ; 4fd800b3a8 2011-02-23 kinaba: vector <string> _(__, __+sizeof(__)/sizeof(*__)); 4fd800b3a8 2011-02-23 kinaba: END 4fd800b3a8 2011-02-23 kinaba: */ 4fd800b3a8 2011-02-23 kinaba: } 4fd800b3a8 2011-02-23 kinaba: // END CUT HERE