#include <bits/stdc++.h> typedef long long ll; using namespace std; const int N=100100; ll r[N]; vector<pair<int,ll> >g[N]; ll d[N]; int sz[N]; void dfs_dist(int v,int pr){ for (auto cur:g[v]){ int to=cur.first; ll w=cur.second; if (to==pr) continue; d[to]=d[v]+w; dfs_dist(to,v); } } vector<int>order; vector<int>G[N]; vector<int>R[N]; int cmp[N]; bool used[N]; void dfs1(int v,int ind){ used[v]=true; cmp[v]=ind; sz[ind]++; for (int to:R[v]){ if (!used[to]){ dfs1(to,ind); } } //order.push_back(v); } vector<pair<int,int> >E; void dfs(int v){ used[v]=true; for (int to:G[v]){ if (!used[to]){ E.push_back({v,to}); dfs(to); } } order.push_back(v); } const int K=5100; bitset<K>bt[K]; void dfs2(int v){ bt[v][v]=1; used[v]=true; for (int to:G[v]){ if (!used[to]){ dfs2(to); } bt[v]|=bt[to]; } } bool good[N]; int sum[N]; int main(){ ios_base::sync_with_stdio(false); cin.tie(0); int n;cin>>n; for (int i=1;i<=n;i++) cin>>r[i]; for (int i=1;i<n;i++){ int a,b;cin>>a>>b; ll c;cin>>c; g[a].push_back({b,c}); g[b].push_back({a,c}); } for (int i=1;i<=n;i++){ d[i]=0; dfs_dist(i,0); for (int j=1;j<=n;j++){ if (i!=j && d[j]<=r[i]){ G[i].push_back(j); R[j].push_back(i); } } } for (int i=1;i<=n;i++){ if (used[i]) continue; dfs(i); } reverse(order.begin(),order.end()); for (int i=1;i<=n;i++) used[i]=false; int cnt=0; for (int i:order){ if (used[i]) continue; cnt++; dfs1(i,cnt); } for (int i=1;i<=n;i++){ // cout<<cmp[i]<<" "; G[i].clear(); used[i]=false; } // cout<<endl; for (int i=1;i<=n;i++){ for (int j:R[i]){ if (cmp[j]==cmp[i]) continue; G[cmp[j]].push_back(cmp[i]); // cout<<cmp[j]<<" "<<cmp[i]<<endl; } } order.clear(); for (int i=1;i<=cnt;i++) used[i]=false; for (int i=1;i<=cnt;i++){ if (!used[i]){ dfs2(i); } } if (cnt>=K) exit(1); for (int i=1;i<=cnt;i++){ sum[i]=0; for (int j=1;j<=cnt;j++) sum[i]+=bt[i][j]*sz[j]; } for (int i=1;i<=n;i++) cout<<sum[cmp[i]]<<" "; cout<<'\n'; return 0; } /* 5 8 1 0 4 6 2 4 2 3 1 9 2 5 5 2 1 2 */
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 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | #include <bits/stdc++.h> typedef long long ll; using namespace std; const int N=100100; ll r[N]; vector<pair<int,ll> >g[N]; ll d[N]; int sz[N]; void dfs_dist(int v,int pr){ for (auto cur:g[v]){ int to=cur.first; ll w=cur.second; if (to==pr) continue; d[to]=d[v]+w; dfs_dist(to,v); } } vector<int>order; vector<int>G[N]; vector<int>R[N]; int cmp[N]; bool used[N]; void dfs1(int v,int ind){ used[v]=true; cmp[v]=ind; sz[ind]++; for (int to:R[v]){ if (!used[to]){ dfs1(to,ind); } } //order.push_back(v); } vector<pair<int,int> >E; void dfs(int v){ used[v]=true; for (int to:G[v]){ if (!used[to]){ E.push_back({v,to}); dfs(to); } } order.push_back(v); } const int K=5100; bitset<K>bt[K]; void dfs2(int v){ bt[v][v]=1; used[v]=true; for (int to:G[v]){ if (!used[to]){ dfs2(to); } bt[v]|=bt[to]; } } bool good[N]; int sum[N]; int main(){ ios_base::sync_with_stdio(false); cin.tie(0); int n;cin>>n; for (int i=1;i<=n;i++) cin>>r[i]; for (int i=1;i<n;i++){ int a,b;cin>>a>>b; ll c;cin>>c; g[a].push_back({b,c}); g[b].push_back({a,c}); } for (int i=1;i<=n;i++){ d[i]=0; dfs_dist(i,0); for (int j=1;j<=n;j++){ if (i!=j && d[j]<=r[i]){ G[i].push_back(j); R[j].push_back(i); } } } for (int i=1;i<=n;i++){ if (used[i]) continue; dfs(i); } reverse(order.begin(),order.end()); for (int i=1;i<=n;i++) used[i]=false; int cnt=0; for (int i:order){ if (used[i]) continue; cnt++; dfs1(i,cnt); } for (int i=1;i<=n;i++){ // cout<<cmp[i]<<" "; G[i].clear(); used[i]=false; } // cout<<endl; for (int i=1;i<=n;i++){ for (int j:R[i]){ if (cmp[j]==cmp[i]) continue; G[cmp[j]].push_back(cmp[i]); // cout<<cmp[j]<<" "<<cmp[i]<<endl; } } order.clear(); for (int i=1;i<=cnt;i++) used[i]=false; for (int i=1;i<=cnt;i++){ if (!used[i]){ dfs2(i); } } if (cnt>=K) exit(1); for (int i=1;i<=cnt;i++){ sum[i]=0; for (int j=1;j<=cnt;j++) sum[i]+=bt[i][j]*sz[j]; } for (int i=1;i<=n;i++) cout<<sum[cmp[i]]<<" "; cout<<'\n'; return 0; } /* 5 8 1 0 4 6 2 4 2 3 1 9 2 5 5 2 1 2 */ |