結果
問題 | No.235 めぐるはめぐる (5) |
ユーザー | latte0119 |
提出日時 | 2015-10-31 16:26:08 |
言語 | C++11 (gcc 11.4.0) |
結果 |
RE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 4,002 bytes |
コンパイル時間 | 753 ms |
コンパイル使用メモリ | 71,520 KB |
実行使用メモリ | 62,012 KB |
最終ジャッジ日時 | 2024-09-13 06:24:13 |
合計ジャッジ時間 | 4,709 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | RE | - |
testcase_01 | RE | - |
testcase_02 | RE | - |
コンパイルメッセージ
main.cpp: In function ‘long long int hl_init()’: main.cpp:108:1: warning: no return statement in function returning non-void [-Wreturn-type] 108 | } | ^ main.cpp: In function ‘int main()’: main.cpp:136:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 136 | scanf("%lld",&N); | ~~~~~^~~~~~~~~~~ main.cpp:137:18: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 137 | rep(i,N)scanf("%lld",&S[i]); | ~~~~~^~~~~~~~~~~~~~ main.cpp:138:18: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 138 | rep(i,N)scanf("%lld",&C[i]); | ~~~~~^~~~~~~~~~~~~~ main.cpp:142:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 142 | scanf("%lld%lld",&a,&b); | ~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:149:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 149 | scanf("%lld",&Q); | ~~~~~^~~~~~~~~~~ main.cpp:152:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 152 | scanf("%lld",&type); | ~~~~~^~~~~~~~~~~~~~ main.cpp:155:18: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 155 | scanf("%lld%lld%lld",&x,&y,&z); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:165:18: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 165 | scanf("%lld%lld",&x,&y
ソースコード
#include<cstdio> #include<vector> #include<algorithm> #include<iostream> #include<cassert> #define int long long using namespace std; typedef pair<int,int>pint; typedef vector<int>vint; #define pb push_back #define mp make_pair #define rep(i,n) for(int i=0;i<(n);i++) template<class T,class U>void chmin(T &t,U f){if(t>f)t=f;} template<class T,class U>void chmax(T &t,U f){if(t<f)t=f;} const int mod=1000000007; struct seg_tree{ int N; vint dat,sum,lazy; void init(vint &s,vint &c){ N=1; while(N<s.size())N*=2; dat.assign(N*2-1,0); sum.assign(N*2-1,0); lazy.assign(N*2-1,0); rep(i,s.size()){ dat[i+N-1]=s[i]; sum[i+N-1]=c[i]; } for(int i=N-2;i>=0;i--){ dat[i]=(dat[i*2+1]+dat[i*2+2])%mod; sum[i]=(sum[i*2+1]+sum[i*2+2])%mod; } } inline void evaluate(int k){ dat[k]=(dat[k]+sum[k]*lazy[k])%mod; if(k<N-1){ lazy[k*2+1]=(lazy[k*2+1]+lazy[k])%mod; lazy[k*2+2]=(lazy[k*2+2]+lazy[k])%mod; } lazy[k]=0; } inline void update(int k){ dat[k]=(dat[k*2+1]+dat[k*2+2])%mod; } void add(int a,int b,int x){add(a,b,x,0,0,N);} void add(int a,int b,int x,int k,int l,int r){ evaluate(k); if(r<=a||b<=l)return; if(a<=l&&r<=b){ lazy[k]=(lazy[k]+x+mod)%mod; evaluate(k); return; } add(a,b,x,k*2+1,l,(l+r)/2); add(a,b,x,k*2+2,(l+r)/2,r); update(k); } int get(int a,int b){return get(a,b,0,0,N);} int get(int a,int b,int k,int l,int r){ evaluate(k); if(r<=a||b<=l)return 0; if(a<=l&&r<=b)return dat[k]; return (get(a,b,k*2+1,l,(l+r)/2)+get(a,b,k*2+2,(l+r)/2,r))%mod; } }; const int SIZE=200000; int N,Q; int S[SIZE],C[SIZE]; vint G[SIZE]; int par[SIZE],depth[SIZE],heavy[SIZE]; int head[SIZE],chain[SIZE]; vector<seg_tree>seg; int hl_dfs(int v,int p,int d){ par[v]=p; depth[v]=d; heavy[v]=-1; int ma=0,sum=0; rep(i,G[v].size()){ int to=G[v][i]; if(to==p)continue; int val=hl_dfs(to,v,d+1); if(ma<val){ ma=val; heavy[v]=to; } sum+=val; } return sum+1; } int hl_init(){ hl_dfs(0,-1,0); rep(i,N){ if(par[i]>=0&&heavy[par[i]]==i)continue; vint s,c; for(int j=i;~j;j=heavy[j]){ head[j]=i; chain[j]=seg.size(); s.pb(S[j]); c.pb(C[j]); } seg.pb(seg_tree()); seg.back().init(s,c); } } int lca(int u,int v){ while(chain[u]!=chain[v]){ if(depth[head[u]]<depth[head[v]])swap(u,v); u=par[head[u]]; } return depth[u]<depth[v]?u:v; } void add(int v,int x){ while(~v){ seg[chain[v]].add(0,depth[v]-depth[head[v]]+1,x); v=par[head[v]]; } } int get(int v){ int ret=0; while(~v){ ret+=seg[chain[v]].get(0,depth[v]-depth[head[v]]+1); v=par[head[v]]; ret%=mod; } return ret; } signed main(){ scanf("%lld",&N); rep(i,N)scanf("%lld",&S[i]); rep(i,N)scanf("%lld",&C[i]); rep(i,N-1){ int a,b; scanf("%lld%lld",&a,&b); a--;b--; G[a].pb(b); G[b].pb(a); } hl_init(); scanf("%lld",&Q); while(Q--){ int type; scanf("%lld",&type); if(type==0){ int x,y,z; scanf("%lld%lld%lld",&x,&y,&z); x--;y--; int p=lca(x,y); add(x,z); add(y,z); add(p,-z); if(par[p]>=0)add(par[p],-z); } else{ int x,y; scanf("%lld%lld",&x,&y); x--;y--; int p=lca(x,y); int ans=get(x)+get(y)-get(p); if(par[p]>=0)ans-=get(par[p]); ans=(ans+mod*100)%mod; printf("%lld\n",ans); } } return 0; }