結果
問題 | No.900 aδδitivee |
ユーザー | latte0119 |
提出日時 | 2019-10-05 01:11:10 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 168 ms / 2,000 ms |
コード長 | 3,111 bytes |
コンパイル時間 | 1,819 ms |
コンパイル使用メモリ | 173,300 KB |
実行使用メモリ | 36,260 KB |
最終ジャッジ日時 | 2024-10-04 03:09:07 |
合計ジャッジ時間 | 8,142 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 3 ms
5,248 KB |
testcase_01 | AC | 3 ms
5,248 KB |
testcase_02 | AC | 3 ms
5,248 KB |
testcase_03 | AC | 3 ms
5,248 KB |
testcase_04 | AC | 4 ms
5,248 KB |
testcase_05 | AC | 3 ms
5,248 KB |
testcase_06 | AC | 3 ms
5,248 KB |
testcase_07 | AC | 163 ms
32,952 KB |
testcase_08 | AC | 147 ms
32,948 KB |
testcase_09 | AC | 167 ms
32,820 KB |
testcase_10 | AC | 159 ms
32,816 KB |
testcase_11 | AC | 154 ms
32,944 KB |
testcase_12 | AC | 159 ms
32,948 KB |
testcase_13 | AC | 158 ms
33,076 KB |
testcase_14 | AC | 158 ms
32,824 KB |
testcase_15 | AC | 151 ms
33,060 KB |
testcase_16 | AC | 157 ms
32,952 KB |
testcase_17 | AC | 154 ms
32,768 KB |
testcase_18 | AC | 155 ms
32,948 KB |
testcase_19 | AC | 154 ms
33,076 KB |
testcase_20 | AC | 160 ms
32,948 KB |
testcase_21 | AC | 168 ms
32,948 KB |
testcase_22 | AC | 146 ms
36,024 KB |
testcase_23 | AC | 155 ms
36,260 KB |
testcase_24 | AC | 150 ms
36,020 KB |
testcase_25 | AC | 148 ms
36,020 KB |
testcase_26 | AC | 141 ms
36,148 KB |
testcase_27 | AC | 148 ms
36,024 KB |
testcase_28 | AC | 144 ms
36,020 KB |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:136:20: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 136 | int N;scanf("%lld",&N); | ~~~~~^~~~~~~~~~~ main.cpp:140:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 140 | scanf("%lld%lld%lld",&a,&b,&c); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:148:20: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 148 | int Q;scanf("%lld",&Q); | ~~~~~^~~~~~~~~~~ main.cpp:150:28: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 150 | int t;scanf("%lld",&t); | ~~~~~^~~~~~~~~~~ main.cpp:153:30: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 153 | scanf("%lld%lld",&a,&x); | ~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:158:36: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 158 | int b;scanf("%lld",&b); | ~~~~~^~~~~~~~~~~
ソースコード
#include<bits/stdc++.h> using namespace std; #define int long long #define rep(i,n) for(int i=0;i<(n);i++) #define pb push_back #define all(v) (v).begin(),(v).end() #define fi first #define se second typedef vector<int>vint; typedef pair<int,int>pint; typedef vector<pint>vpint; template<typename A,typename B>inline void chmin(A &a,B b){if(a>b)a=b;} template<typename A,typename B>inline void chmax(A &a,B b){if(a<b)a=b;} template<class W,int lg=1> struct WeightedTree{ struct Edge{ int to; W cost; Edge(int to,W cost):to(to),cost(cost){} }; int V; vector<vector<Edge>>G; vector<vector<int>>par; vector<int>dep,sz,head; vector<int>tin,tout; vector<W>dist; WeightedTree(int V):V(V),G(V),par(lg,vector<int>(V)),sz(V),dep(V),head(V),dist(V),tin(V),tout(V){} void addEdge(int a,int b,W c=W(1)){ G[a].push_back(Edge(b,c)); G[b].push_back(Edge(a,c)); } void dfs(int v,int p,int d,W c){ par[0][v]=p; dep[v]=d; sz[v]=1; dist[v]=c; for(auto &e:G[v]){ if(e.to==p)continue; dfs(e.to,v,d+1,c+e.cost); sz[v]+=sz[e.to]; if(G[v][0].to==p||sz[e.to]>sz[G[v][0].to])swap(G[v][0],e); } } void dfs_hld(int v,int &tt){ tin[v]=tt++; for(auto &e:G[v]){ if(e.to==par[0][v])continue; head[e.to]=(e.to==G[v][0].to)?head[v]:e.to; dfs_hld(e.to,tt); } tout[v]=tt; } void init(){ dfs(0,-1,0,W(0)); int tt=0; dfs_hld(0,tt); for(int i=0;i+1<lg;i++){ for(int j=0;j<V;j++){ if(par[i][j]==-1)par[i+1][j]=-1; else par[i+1][j]=par[i][par[i][j]]; } } } // 1<<lg >=N-1!!!!! int getLCA(int u,int v){ if(dep[u]<dep[v])swap(u,v); rep(i,lg)if((dep[u]-dep[v])>>i&1)u=par[i][u]; if(u==v)return u; for(int i=lg-1;i>=0;i--)if(par[i][u]!=par[i][v])u=par[i][u],v=par[i][v]; return par[0][v]; } int getLength(int a,int b=0){ int l=getLCA(a,b); return dep[a]+dep[b]-2*dep[l]; } W getDistance(int a,int b=0){ int l=getLCA(a,b); return dist[a]+dist[b]-2*dist[l]; } int getPar(int v,int k=0){ return par[k][v]; } int getDepth(int v){ return dep[v]; } int getIn(int v){ return tin[v]; } int getOut(int v){ return tout[v]; } }; /* 0-indexed add(k,x): a[k]+=x sum(k): sum(a[0,k]) space:O(N) time:O(logN) per query */ struct BinaryIndexedTree{ int n; vector<int>dat; BinaryIndexedTree(int n=0):n(n){ dat.resize(n+1); } void add(int k,int x){ for(k++;k<=n;k+=k&-k)dat[k]+=x; } int sum(int k){ int ret=0; for(k++;k;k-=k&-k)ret+=dat[k]; return ret; } }; signed main(){ int N;scanf("%lld",&N); WeightedTree<int,20>T(N); rep(i,N-1){ int a,b,c; scanf("%lld%lld%lld",&a,&b,&c); T.addEdge(a,b,c); } T.init(); BinaryIndexedTree bit0(111111),bit1(111111); int Q;scanf("%lld",&Q); while(Q--){ int t;scanf("%lld",&t); if(t==1){ int a,x; scanf("%lld%lld",&a,&x); bit1.add(T.getIn(a),x);bit1.add(T.getOut(a),-x); bit0.add(T.getIn(a),-T.getDepth(a)*x);bit0.add(T.getOut(a),T.getDepth(a)*x); } else{ int b;scanf("%lld",&b); int ans=T.getDistance(b); ans+=bit0.sum(T.getIn(b)); ans+=bit1.sum(T.getIn(b))*T.getDepth(b); printf("%lld\n",ans); } } return 0; }