結果

問題 No.235 めぐるはめぐる (5)
ユーザー hiikunZhiikunZ
提出日時 2024-03-20 21:12:01
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
WA  
実行時間 -
コード長 5,931 bytes
コンパイル時間 2,826 ms
コンパイル使用メモリ 226,036 KB
実行使用メモリ 99,240 KB
最終ジャッジ日時 2024-09-30 06:57:12
合計ジャッジ時間 22,900 ms
ジャッジサーバーID
(参考情報)
judge1 / judge4
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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 WA -
testcase_01 WA -
testcase_02 WA -
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ソースコード

diff #

// #pragma GCC target("avx2")
#pragma GCC optimize("Ofast,unroll-loops")
#include<bits/stdc++.h>
using namespace std;
using ll = long long int;
const ll MOD = 1000000007;
ll N;
vector<ll> S(200000),C(200000),seen(200000,0),siz(200000,0),par(200000,-1),root(200000,-1),id(200000,-1),dep(200000,0);
vector<vector<ll>> GG(200000),G(200000);
void dfs1(ll x){
    seen[x] = 1;
    siz[x] = 1;
    for(ll i = 0;i < (ll)GG[x].size();i++){
        ll y = GG[x][i];
        if(seen[y] == 1) continue;
        dep[y] = dep[x] + 1;
        G[x].emplace_back(y);
        dfs1(y);
        siz[x] += siz[y];
    }   
}
ll I = 0;
void dfs2(ll x){
    id[x] = I;
    I++;
    for(ll i = 1;i < (ll)G[x].size();i++){
        if(siz[G[x][i]] > siz[G[x][0]]){
            swap(G[x][i],G[x][0]);
        }
    }
    for(ll i = 0;i < (ll)G[x].size();i++){
        ll y = G[x][i];
        if(i == 0) root[y] = root[x];
        else root[y] = y;
        par[y] = x;
        dfs2(y);
    }
}
vector<ll> O(200000,0),O_R(200001,0),A(400000,0),E(400000,0),R_L(400000),R_R(400000); // A は合計
void eval(ll x){
    ll s = O_R[R_R[x]] - O_R[R_L[x]];
    A[x] += (s * E[x]) % MOD;
    A[x] %= MOD;
    if(x < N){
        E[x * 2] += E[x];
        E[x * 2] %= MOD;
        E[x * 2 + 1] += E[x];
        E[x * 2 + 1] %= MOD;
    }
    E[x] = 0;
}
void ue_update(ll x){
    ll X = 0;
    while((x >> X) > 0) X++;
    while(X > 0){
        X--;
        eval(x >> X);
    }
}
void reeval(ll x){
    while(x > 0){
        eval(x);
        if(x < N){
            eval(x * 2);
            eval(x * 2 + 1);
            A[x] = (A[x * 2] + A[x * 2 + 1]) % MOD;
        }
        x /= 2;
    }
}
void add(ll l,ll r,ll x){
    //cerr << "add("<<l<<","<<r<<","<<x<<")"<<endl;
    l += N;
    r += N;
    ue_update(l);
    ue_update(r - 1);
    while(l < r){
        if(l & 1){
            eval(l);
            E[l] += x;
            E[l] %= MOD;
            eval(l);
            l++;
        }
        if(r & 1){
            r--;
            eval(r);
            E[r] += x;
            E[r] %= MOD;
            eval(r);
        }
        l /= 2;
        r /= 2;
    }
    reeval(l);
    reeval(r- 1);
}
ll query(ll l,ll r){
    //cerr<<"query("<<l<<","<<r<<")";
    l += N;
    r += N;
    ll ans = 0;
    ue_update(l);
    ue_update(r - 1);
    while(l < r){
        if(l & 1){
            eval(l);
            ans += A[l];
            ans %= MOD;
            l++;
        }
        if(r & 1){
            r--;
            eval(r);
            ans += A[r];
            ans %= MOD;
        }
        l /= 2;
        r /= 2;
    }
    // << " = " << ans << endl;
    return ans;
}
vector<vector<ll>> D(30,vector<ll>(200000,0));
ll lca(ll x,ll y){
    if(dep[x] < dep[y]) swap(x,y);
    for(ll i = 28;i >= 0;i--){
        ll xx = D[i][x];
        if(dep[xx] >= dep[y]) x = xx;
    }
    if(x == y) return x;
    for(ll i = 28;i >= 0;i--){
        ll xx = D[i][x],yy = D[i][y];
        if(xx != yy){
            x = xx;
            y = yy;
        }
    }
    return D[0][x];
}
int main(){
    cin >> N;
    for(ll i = 0;i < N;i++) cin >> S[i];
    for(ll j = 0;j < N;j++) cin >> C[j];
    for(ll i = 0;i < N - 1;i++){
        ll a,b;
        cin >> a >> b;
        a--;b--;
        GG[a].emplace_back(b);
        GG[b].emplace_back(a);
    }

    dfs1(0);
    root[0] = 0;
    dfs2(0);
    for(ll i = 1;i < N;i++){
        D[0][i] = par[i];
    }
    for(ll i = 0;i < 29;i++){
        for(ll j = 0;j < N;j++){
            D[i + 1][j] = D[i][D[i][j]];
        }
    }
    for(ll i = 0;i < N;i++){
        //cerr<<id[i]<<endl;
        O[id[i]] = C[i];
        A[N + id[i]] = S[i];
        R_L[N + i] = i;
        R_R[N + i] = i + 1;
    }
    for(ll i = 0;i < N;i++){
        O_R[i + 1] = O_R[i] + O[i];
    }
    for(ll i = N - 1;i > 0;i--){
        A[i] = A[i * 2] + A[i * 2 + 1];
        R_L[i] = R_L[i * 2];
        R_R[i] = R_R[i * 2 + 1];
    }
    ll Q;
    cin >> Q;
    for(ll q = 0;q < Q;q++){
        ll t;
        cin >> t;
        if(t == 0){
            ll x,y,z;
            cin >> x >> y >> z;
            x--;
            y--;
            ll a = lca(x,y);
            while(root[x] != root[a]){
                ll id_r = id[root[x]],id_x = id[x];
                add(id_r,id_x + 1,z);
                x = par[root[x]];
            }
            {
                ll id_a = id[a],id_x = id[x];
                add(id_a,id_x + 1,z);
            }
            while(root[y] != root[a]){
                ll id_r = id[root[y]],id_y = id[y];
                add(id_r,id_y + 1,z);
                y = par[root[y]];
            }
            {
                ll id_a = id[a],id_y = id[y];
                add(id_a,id_y + 1,z);
            }
            ll id_a = id[a];
            add(id_a,id_a + 1,-z);
        }
        else{
            ll x,y;
            cin >> x >> y;
            x--;
            y--;
            ll a = lca(x,y);
            ll ans = 0;
            while(root[x] != root[a]){
                ll id_r = id[root[x]],id_x = id[x];
                ans += query(id_r,id_x + 1);
                ans %= MOD;
                x = par[root[x]];
            }
            {
                ll id_a = id[a],id_x = id[x];
                ans += query(id_a,id_x + 1);
                ans %= MOD;
            }
            while(root[y] != root[a]){
                ll id_r = id[root[y]],id_y = id[y];
                ans += query(id_r,id_y + 1);
                ans %= MOD;
                y = par[root[y]];
            }
            {
                ll id_a = id[a],id_y = id[y];
                ans += query(id_a,id_y + 1);
                ans %= MOD;
            }
            ll id_a = id[a];
            ans -= query(id_a,id_a + 1);
            ans %= MOD;
            if(ans < 0) ans += MOD;
            cout << ans << endl;
        }
        /*for(ll i = 0;i < N;i++){
            cerr << query(i,i+1)<<",";
        }
        cerr<<endl;*/
    }
}
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