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怎么不A,帮帮我吧!#include <cstdio> #include <string.h> #include <vector> #include <map> #include <algorithm> #include <string> #include <iostream> using namespace std; const int NMax=30; int N,L1,L2,connect[NMax]; bool ok[NMax],sta[NMax]; map<string,int> ID1,ID2; map<int,string> rev1,rev2; map<int,bool> State; bool G[NMax][NMax]; bool DFS(int a) { sta[a]=1; for(int j=1;j<=N;j++) if(G[a][j]){ if(!connect[j]) { connect[j]=a; ok[a]=1; return 1; }else if(!sta[connect[j]] && DFS(connect[j])) { ok[a]=1; connect[j]=a; return 1; } } return 0; } bool cmp(int a,int b) { return rev1[a]<rev1[b]; } int main() { string tmp; char buf[NMax],buf2[NMax]; scanf("%d",&N); for(int i=1;i<=N;i++) { scanf("%s",buf); int len=strlen(buf);tmp.clear(); for(int j=0;j<len;j++) tmp.push_back(buf[j]); ID2[tmp]=++L2;rev2[L2]=tmp; } while(scanf("%s",buf),(buf[0]!='Q')) { scanf("%s",buf2); int len=strlen(buf2);tmp.clear(); for(int i=0;i<len;i++) tmp.push_back(buf2[i]); if(buf[0]=='M') { int ID=ID2[tmp]; int Maxn=0; for(map<int,bool>::iterator p=State.begin();p!=State.end();p++) if(p->second) { G[ID][p->first]=1; if(p->first>Maxn) Maxn=p->first; } for(int i=Maxn+1;i<=N;i++) G[ID][i]=0; continue; } if(ID1[tmp]==0) {ID1[tmp]=++L1;rev1[L1]=tmp;} int ID=ID1[tmp]; if(buf[0]=='E') State[ID]=1; else if(buf[0]=='L') State[ID]=0; } //puts("dsdfsdf"); for(int i=1;i<=N;i++) connect[i]=0; for(int i=1;i<=N;i++) ok[i]=0; for(int i=1;i<=N;i++) { for(int j=1;j<=N;j++) if(G[i][j]){ if(!connect[j]) { connect[j]=i; ok[i]=1; break; } } } for(int i=1;i<=N;i++) { for(int j=1;j<=N;j++) sta[j]=0; if(!ok[i]) DFS(i); } int R[NMax]; for(int i=1;i<=N;i++) R[i]=i; sort(R+1,R+N+1,cmp); for(int i=1;i<=N;i++) { if(connect[R[i]]) cout <<rev1[R[i]]<<':'<<rev2[connect[R[i]]]<<endl; else cout <<rev1[R[i]]<<':'<<"???"<<endl; } getchar(); getchar(); return 0; } Followed by: Post your reply here: |
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