#include <iostream> #include <vector> void usuwanie_drogi(std::vector <std::vector <int> >& siec,int a,int b,int d,int *siz) { int k=0; while(siec.at(a).at(k)!=b) k++; siec.at(a).at(k)=0; siz[a]--; k=0; while(siec.at(b).at(k)!=a) k++; siec.at(b).at(k)=0; siz[b]--; k=0; if(siz[a]<d) { while(siz[a]>0) { if(siec.at(a).at(k)!=0) usuwanie_drogi(siec,a,siec.at(a).at(k),d,siz); else k++; } } k=0; if(siz[b]<d) { while(siz[b]>0) { if(siec.at(b).at(k)!=0) usuwanie_drogi(siec,b,siec.at(b).at(k),d,siz); else k++; } } } int main() { int m,n,d,ta,tb; std::cin>>n>>m>>d; std::vector <std::vector <int> > siec (n+1); int siz[n+1]; int i=0; for(i=1; i<=n; i++) siz[i]=0; while(m>0) { std::cin>>ta>>tb; siec[ta].push_back(tb); siec[tb].push_back(ta); siz[ta]++; siz[tb]++; m--; } for(i=1; i<=n; i++) { ta=0; if(siz[i]<d && siz[i]!=0) { while(siec.at(i).at(ta)==0) ta++; usuwanie_drogi(siec,i,siec.at(i).at(ta),d,siz); } } ta=0; for(i=1; i<=n; i++) { if(siz[i]!=0) ta++; } if(ta==0) { std::cout<<"NIE"; return 0; } std::cout<<ta<<std::endl; for(i=1; i<=n; i++) { if(siz[i]!=0) std::cout<<i<<" "; } return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 | #include <iostream> #include <vector> void usuwanie_drogi(std::vector <std::vector <int> >& siec,int a,int b,int d,int *siz) { int k=0; while(siec.at(a).at(k)!=b) k++; siec.at(a).at(k)=0; siz[a]--; k=0; while(siec.at(b).at(k)!=a) k++; siec.at(b).at(k)=0; siz[b]--; k=0; if(siz[a]<d) { while(siz[a]>0) { if(siec.at(a).at(k)!=0) usuwanie_drogi(siec,a,siec.at(a).at(k),d,siz); else k++; } } k=0; if(siz[b]<d) { while(siz[b]>0) { if(siec.at(b).at(k)!=0) usuwanie_drogi(siec,b,siec.at(b).at(k),d,siz); else k++; } } } int main() { int m,n,d,ta,tb; std::cin>>n>>m>>d; std::vector <std::vector <int> > siec (n+1); int siz[n+1]; int i=0; for(i=1; i<=n; i++) siz[i]=0; while(m>0) { std::cin>>ta>>tb; siec[ta].push_back(tb); siec[tb].push_back(ta); siz[ta]++; siz[tb]++; m--; } for(i=1; i<=n; i++) { ta=0; if(siz[i]<d && siz[i]!=0) { while(siec.at(i).at(ta)==0) ta++; usuwanie_drogi(siec,i,siec.at(i).at(ta),d,siz); } } ta=0; for(i=1; i<=n; i++) { if(siz[i]!=0) ta++; } if(ta==0) { std::cout<<"NIE"; return 0; } std::cout<<ta<<std::endl; for(i=1; i<=n; i++) { if(siz[i]!=0) std::cout<<i<<" "; } return 0; } |