File Annotation
Not logged in
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: static const LL SHIFT = 1000000000LL;
4fd800b3a8 2011-02-23        kinaba: static const LL INF   = 1000001LL;
4fd800b3a8 2011-02-23        kinaba: static const LL MAX   = 1000000LL;
4fd800b3a8 2011-02-23        kinaba: static const int NV = 5002;
4fd800b3a8 2011-02-23        kinaba: typedef LL            flow;
4fd800b3a8 2011-02-23        kinaba: typedef int           vert;
4fd800b3a8 2011-02-23        kinaba: typedef vert          edge;
4fd800b3a8 2011-02-23        kinaba: typedef vector<edge>  edges;
4fd800b3a8 2011-02-23        kinaba: typedef vector<edges> graph;
4fd800b3a8 2011-02-23        kinaba: //typedef flow          flow_graph[NV][NV];
4fd800b3a8 2011-02-23        kinaba: typedef map< vert,map<vert,flow> > flow_graph;
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: flow dinic_dfs( graph& G, flow_graph& F, vert v, vert D,
4fd800b3a8 2011-02-23        kinaba:                 int LV[], flow flow_in, int blocked[] )
4fd800b3a8 2011-02-23        kinaba: {
4fd800b3a8 2011-02-23        kinaba: 	flow flow_out = 0;
4fd800b3a8 2011-02-23        kinaba: 	for(int i=0; i!=G[v].size(); ++i) {
4fd800b3a8 2011-02-23        kinaba: 		int u = G[v][i];
4fd800b3a8 2011-02-23        kinaba: 		if( LV[v]+1==LV[u] && F[v][u] ) {
4fd800b3a8 2011-02-23        kinaba: 			flow f = min(flow_in-flow_out, F[v][u]);
4fd800b3a8 2011-02-23        kinaba: 			if( u==D || !blocked[u] && (f=dinic_dfs(G,F,u,D,LV,f,blocked)) ) {
4fd800b3a8 2011-02-23        kinaba: 				F[v][u]  -= f;
4fd800b3a8 2011-02-23        kinaba: 				F[u][v]  += f;
4fd800b3a8 2011-02-23        kinaba: 				flow_out += f;
4fd800b3a8 2011-02-23        kinaba: 				if( flow_in == flow_out ) return flow_out;
4fd800b3a8 2011-02-23        kinaba: 			}
4fd800b3a8 2011-02-23        kinaba: 		}
4fd800b3a8 2011-02-23        kinaba: 	}
4fd800b3a8 2011-02-23        kinaba: 	blocked[v] = (flow_out==0);
4fd800b3a8 2011-02-23        kinaba: 	return flow_out;
4fd800b3a8 2011-02-23        kinaba: }
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: flow maxFlow( graph& G, flow_graph& F, vert S, vert D )
4fd800b3a8 2011-02-23        kinaba: {
4fd800b3a8 2011-02-23        kinaba: 	for( flow total=0 ;; ) {
4fd800b3a8 2011-02-23        kinaba: 		int LV[NV] = {0};
4fd800b3a8 2011-02-23        kinaba: 		vector<int> Q(1, S);
4fd800b3a8 2011-02-23        kinaba: 		for(int lv=1; !Q.empty(); ++lv) {
4fd800b3a8 2011-02-23        kinaba: 			vector<int> Q2;
4fd800b3a8 2011-02-23        kinaba: 			for(int i=0; i!=Q.size(); ++i) {
4fd800b3a8 2011-02-23        kinaba: 				edges& ne = G[Q[i]];
4fd800b3a8 2011-02-23        kinaba: 				for(int j=0; j!=ne.size(); ++j)
4fd800b3a8 2011-02-23        kinaba: 					if( F[Q[i]][ne[j]] && !LV[ne[j]] && ne[j]!=S )
4fd800b3a8 2011-02-23        kinaba: 						LV[ne[j]]=lv, Q2.push_back(ne[j]);
4fd800b3a8 2011-02-23        kinaba: 			}
4fd800b3a8 2011-02-23        kinaba: 			Q.swap(Q2);
4fd800b3a8 2011-02-23        kinaba: 		}
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: 		if( !LV[D] )
4fd800b3a8 2011-02-23        kinaba: 			return total;
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: 		int blocked[NV] = {};
4fd800b3a8 2011-02-23        kinaba: 		total += dinic_dfs( G, F, S, D, LV, 0x7fffffff, blocked );
4fd800b3a8 2011-02-23        kinaba: 	}
4fd800b3a8 2011-02-23        kinaba: }
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: flow_graph F;
4fd800b3a8 2011-02-23        kinaba: class BarbarianInvasion {
4fd800b3a8 2011-02-23        kinaba: public:
4fd800b3a8 2011-02-23        kinaba: 	int minimalDetachment(vector <string> countryMap, vector <int> detachmentSize)
4fd800b3a8 2011-02-23        kinaba: 	{
4fd800b3a8 2011-02-23        kinaba: 		int H = countryMap.size();
4fd800b3a8 2011-02-23        kinaba: 		int W = countryMap[0].size();
4fd800b3a8 2011-02-23        kinaba: 		vert OUT = 0, CAP = 1;
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: 		graph G(H*W*2+2);
4fd800b3a8 2011-02-23        kinaba: 		flow_graph F;
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: 		for(int y=0; y<H; ++y)
4fd800b3a8 2011-02-23        kinaba: 		for(int x=0; x<W; ++x)
4fd800b3a8 2011-02-23        kinaba: 		{
4fd800b3a8 2011-02-23        kinaba: 			if( countryMap[y][x] == '-' )
4fd800b3a8 2011-02-23        kinaba: 				continue;
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: 			vert CUR_A = countryMap[y][x] == '*' ? CAP : (y*W+x)*2+2; // ==>A->B==>
4fd800b3a8 2011-02-23        kinaba: 			vert CUR_B = countryMap[y][x] == '*' ? CAP : (y*W+x)*2+3;
4fd800b3a8 2011-02-23        kinaba: 			if( countryMap[y][x] != '*' && countryMap[y][x] != '-' ) {
4fd800b3a8 2011-02-23        kinaba: 				G[CUR_A].push_back(CUR_B);
4fd800b3a8 2011-02-23        kinaba: 				G[CUR_B].push_back(CUR_A);
4fd800b3a8 2011-02-23        kinaba: 				F[CUR_A][CUR_B] = SHIFT + detachmentSize[countryMap[y][x]-'A'];
4fd800b3a8 2011-02-23        kinaba: 				F[CUR_B][CUR_A] = 0;
4fd800b3a8 2011-02-23        kinaba: 			}
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: 			int DY[] = {-1,+1,0,0}, DX[]={0,0,-1,+1};
4fd800b3a8 2011-02-23        kinaba: 			for(int d=0; d<4; ++d)
4fd800b3a8 2011-02-23        kinaba: 			{
4fd800b3a8 2011-02-23        kinaba: 				int dy = DY[d], dx = DX[d];
4fd800b3a8 2011-02-23        kinaba: 				if( 0<=y+dy && y+dy<H && 0<=x+dx && x+dx<W )
4fd800b3a8 2011-02-23        kinaba: 				{
4fd800b3a8 2011-02-23        kinaba: 					if( countryMap[y+dy][x+dx] == '-' )
4fd800b3a8 2011-02-23        kinaba: 						continue;
4fd800b3a8 2011-02-23        kinaba: 					if( countryMap[y+dy][x+dx] == '*' )
4fd800b3a8 2011-02-23        kinaba: 						continue;
4fd800b3a8 2011-02-23        kinaba: 					vert ADJ_B = ((y+dy)*W+(x+dx))*2+3;
4fd800b3a8 2011-02-23        kinaba: 					G[ADJ_B].push_back(CUR_A);
4fd800b3a8 2011-02-23        kinaba: 					G[CUR_A].push_back(ADJ_B);
4fd800b3a8 2011-02-23        kinaba: 					F[ADJ_B][CUR_A] = SHIFT+INF;
4fd800b3a8 2011-02-23        kinaba: 					F[CUR_A][ADJ_B] = 0;
4fd800b3a8 2011-02-23        kinaba: 				}
4fd800b3a8 2011-02-23        kinaba: 				else
4fd800b3a8 2011-02-23        kinaba: 				{
4fd800b3a8 2011-02-23        kinaba: 					G[OUT].push_back(CUR_A);
4fd800b3a8 2011-02-23        kinaba: 					G[CUR_A].push_back(OUT);
4fd800b3a8 2011-02-23        kinaba: 					F[OUT][CUR_A] = SHIFT+INF;
4fd800b3a8 2011-02-23        kinaba: 					F[CUR_A][OUT] = 0;
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: 		flow mf = maxFlow(G, F, OUT, CAP);
4fd800b3a8 2011-02-23        kinaba: 		return mf%SHIFT;
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() { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: template <typename T> string print_array(const vector<T> &V) { ostringstream os; os << "{ "; for (typename vector<T>::const_iterator iter = V.begin(); iter != V.end(); ++iter) os << '\"' << *iter << "\","; os << " }"; return os.str(); }
4fd800b3a8 2011-02-23        kinaba: int verify_case(const int &Expected, const int &Received) { if (Expected == Received) cerr << "PASSED" << timer() << endl; else { cerr << "FAILED" << timer() << endl; cerr << "\tExpected: \"" << Expected << '\"' << endl; cerr << "\tReceived: \"" << Received << '\"' << endl; } return 0;}
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: template<int N> struct Case_ { Case_(){start_time=clock();} };
4fd800b3a8 2011-02-23        kinaba: char Test_(...);
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<0>) {
4fd800b3a8 2011-02-23        kinaba: 	string countryMap_[] = {"ABA",
4fd800b3a8 2011-02-23        kinaba:  "A*A",
4fd800b3a8 2011-02-23        kinaba:  "AAA"};
4fd800b3a8 2011-02-23        kinaba: 	  vector <string> countryMap(countryMap_, countryMap_+sizeof(countryMap_)/sizeof(*countryMap_));
4fd800b3a8 2011-02-23        kinaba: 	int detachmentSize_[] = {1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};
4fd800b3a8 2011-02-23        kinaba: 	  vector <int> detachmentSize(detachmentSize_, detachmentSize_+sizeof(detachmentSize_)/sizeof(*detachmentSize_));
4fd800b3a8 2011-02-23        kinaba: 	int RetVal = 5;
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, BarbarianInvasion().minimalDetachment(countryMap, detachmentSize)); }
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<1>) {
4fd800b3a8 2011-02-23        kinaba: 	string countryMap_[] = {"CCCC",
4fd800b3a8 2011-02-23        kinaba:  "-BAC",
4fd800b3a8 2011-02-23        kinaba:  "-*AC",
4fd800b3a8 2011-02-23        kinaba:  "--AC"};
4fd800b3a8 2011-02-23        kinaba: 	  vector <string> countryMap(countryMap_, countryMap_+sizeof(countryMap_)/sizeof(*countryMap_));
4fd800b3a8 2011-02-23        kinaba: 	int detachmentSize_[] = {5,20,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};
4fd800b3a8 2011-02-23        kinaba: 	  vector <int> detachmentSize(detachmentSize_, detachmentSize_+sizeof(detachmentSize_)/sizeof(*detachmentSize_));
4fd800b3a8 2011-02-23        kinaba: 	int RetVal = 25;
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, BarbarianInvasion().minimalDetachment(countryMap, detachmentSize)); }
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<2>) {
4fd800b3a8 2011-02-23        kinaba: 	string countryMap_[] = {"A----A",
4fd800b3a8 2011-02-23        kinaba:  "-AAAA-",
4fd800b3a8 2011-02-23        kinaba:  "-AA*A-",
4fd800b3a8 2011-02-23        kinaba:  "-AAAA-",
4fd800b3a8 2011-02-23        kinaba:  "A----A"};
4fd800b3a8 2011-02-23        kinaba: 	  vector <string> countryMap(countryMap_, countryMap_+sizeof(countryMap_)/sizeof(*countryMap_));
4fd800b3a8 2011-02-23        kinaba: 	int detachmentSize_[] = {9,8,2,5,3,2,1,2,6,10,4,6,7,1,7,8,8,8,2,9,7,6,5,1,5,10};
4fd800b3a8 2011-02-23        kinaba: 	  vector <int> detachmentSize(detachmentSize_, detachmentSize_+sizeof(detachmentSize_)/sizeof(*detachmentSize_));
4fd800b3a8 2011-02-23        kinaba: 	int RetVal = 0;
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, BarbarianInvasion().minimalDetachment(countryMap, detachmentSize)); }
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<3>) {
4fd800b3a8 2011-02-23        kinaba: 	string countryMap_[] = {"-A-----",
4fd800b3a8 2011-02-23        kinaba:  "-BCCC*-",
4fd800b3a8 2011-02-23        kinaba:  "-A-----"};
4fd800b3a8 2011-02-23        kinaba: 	  vector <string> countryMap(countryMap_, countryMap_+sizeof(countryMap_)/sizeof(*countryMap_));
4fd800b3a8 2011-02-23        kinaba: 	int detachmentSize_[] = {1,5,10,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};
4fd800b3a8 2011-02-23        kinaba: 	  vector <int> detachmentSize(detachmentSize_, detachmentSize_+sizeof(detachmentSize_)/sizeof(*detachmentSize_));
4fd800b3a8 2011-02-23        kinaba: 	int RetVal = 5;
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, BarbarianInvasion().minimalDetachment(countryMap, detachmentSize)); }
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<4>) {
4fd800b3a8 2011-02-23        kinaba: 	string countryMap_[] = {"WANNABRUTEFORCEMEHUH",
4fd800b3a8 2011-02-23        kinaba:  "ASUDQWNHIOCASFIUQISA",
4fd800b3a8 2011-02-23        kinaba:  "UWQD-ASFFC-AJSQOOWE-",
4fd800b3a8 2011-02-23        kinaba:  "-----*Y--AVSSFIUQISA",
4fd800b3a8 2011-02-23        kinaba:  "UWQD-ASFFC-AJSQOOWE-",
4fd800b3a8 2011-02-23        kinaba:  "JUFDIFD-CHBVISBOOWE-",
4fd800b3a8 2011-02-23        kinaba:  "WANNABRUTEFORCEMEHUH"};
4fd800b3a8 2011-02-23        kinaba: 	  vector <string> countryMap(countryMap_, countryMap_+sizeof(countryMap_)/sizeof(*countryMap_));
4fd800b3a8 2011-02-23        kinaba: 	int detachmentSize_[] = {87,78,20,43,30,12,9,18,57,93,32,60,64,9,69,74,74,78,12,81,63,57,48,8,44,95};
4fd800b3a8 2011-02-23        kinaba: 	  vector <int> detachmentSize(detachmentSize_, detachmentSize_+sizeof(detachmentSize_)/sizeof(*detachmentSize_));
4fd800b3a8 2011-02-23        kinaba: 	int RetVal = 218;
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, BarbarianInvasion().minimalDetachment(countryMap, detachmentSize)); }
4fd800b3a8 2011-02-23        kinaba: int Test_(Case_<5>) {
4fd800b3a8 2011-02-23        kinaba: 	string countryMap_[] = {
4fd800b3a8 2011-02-23        kinaba:  "WOMP-PVE-LV-NB-J---E",
4fd800b3a8 2011-02-23        kinaba:  "K--MKNWSOLFKK-JHP--W",
4fd800b3a8 2011-02-23        kinaba:  "BE-K--MPP-YGZI-DMVKG",
4fd800b3a8 2011-02-23        kinaba:  "JGWRXQ-UYEROYGC--SZR",
4fd800b3a8 2011-02-23        kinaba:  "KFYN--CRX*N--JS-M-S-",
4fd800b3a8 2011-02-23        kinaba:  "TBFGG-OL--D-DY--RR-A",
4fd800b3a8 2011-02-23        kinaba:  "AMJT-NV--P--XF-YUSBM",
4fd800b3a8 2011-02-23        kinaba:  "HJ-C--KHU-KDZHERUUHM",
4fd800b3a8 2011-02-23        kinaba:  "-FGQZOI-A--ZIPB--QOT",
4fd800b3a8 2011-02-23        kinaba:  "PNLI-RWYZG-MNV-SUNJD",
4fd800b3a8 2011-02-23        kinaba:  "YJ-EJLD-H---K-HSVZF-",
4fd800b3a8 2011-02-23        kinaba:  "LKPGZGF-IQ-ETYQJ-VAR",
4fd800b3a8 2011-02-23        kinaba:  "UGS--V-BOUGG-SMO--Q-",
4fd800b3a8 2011-02-23        kinaba:  "DFVWRHC-D-XES-MEQMCQ",
4fd800b3a8 2011-02-23        kinaba:  "L-PUXR-C-HL-WX-NFJJR",
4fd800b3a8 2011-02-23        kinaba:  "-A-JLUQX--VWPFENHJZ-",
4fd800b3a8 2011-02-23        kinaba:  "HNG-NQAF-VVCUU-WU-HL"};
4fd800b3a8 2011-02-23        kinaba: 	  vector <string> countryMap(countryMap_, countryMap_+sizeof(countryMap_)/sizeof(*countryMap_));
4fd800b3a8 2011-02-23        kinaba: 	int detachmentSize_[] = {
4fd800b3a8 2011-02-23        kinaba: 96882, 90320, 19358, 82732, 80637, //ABCDE
4fd800b3a8 2011-02-23        kinaba: 88638, 43236, 34294, 49732, 86156, //FGHIJ
4fd800b3a8 2011-02-23        kinaba:  1186, 84308, 49312, 92789, 49312, //KLMNO
4fd800b3a8 2011-02-23        kinaba: 14324, 27420, 32881, 73865, 91069, //PQRST
4fd800b3a8 2011-02-23        kinaba:  7266, 60052, 98451, 84652, 3991, 58948}; //UVWXYZ
4fd800b3a8 2011-02-23        kinaba: 	  vector <int> detachmentSize(detachmentSize_, detachmentSize_+sizeof(detachmentSize_)/sizeof(*detachmentSize_));
4fd800b3a8 2011-02-23        kinaba: 	int RetVal = 69753;
4fd800b3a8 2011-02-23        kinaba: 	return verify_case(RetVal, BarbarianInvasion().minimalDetachment(countryMap, detachmentSize)); }
4fd800b3a8 2011-02-23        kinaba: 
4fd800b3a8 2011-02-23        kinaba: template<int N> void Run_() { cerr << "Test Case #" << N << "..." << flush; Test_(Case_<N>()); Run_<sizeof(Test_(Case_<N+1>()))==1 ? -1 : N+1>(); }
4fd800b3a8 2011-02-23        kinaba: template<>      void Run_<-1>() {}
4fd800b3a8 2011-02-23        kinaba: int main() { Run_<0>(); }
4fd800b3a8 2011-02-23        kinaba: // END CUT HERE
4fd800b3a8 2011-02-23        kinaba: