#960391 (C++17) No.2676 A Tourist

提出ソース
結果

問題	No.2676 A Tourist
ユーザー	Rubikun
提出日時	2024-03-15 22:14:40
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	619 ms / 5,000 ms
コード長	17,846 bytes
コンパイル時間	2,847 ms
コンパイル使用メモリ	222,876 KB
実行使用メモリ	44,040 KB
最終ジャッジ日時	2024-03-15 22:14:59
合計ジャッジ時間	16,472 ms
ジャッジサーバーID （参考情報）	judge12 / judge11
このコードへのチャレンジ
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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	2 ms 6,676 KB
testcase_01	AC	183 ms 15,252 KB
testcase_02	AC	619 ms 33,928 KB
testcase_03	AC	512 ms 33,928 KB
testcase_04	AC	561 ms 33,928 KB
testcase_05	AC	545 ms 33,928 KB
testcase_06	AC	133 ms 15,508 KB
testcase_07	AC	434 ms 34,824 KB
testcase_08	AC	282 ms 34,824 KB
testcase_09	AC	384 ms 34,824 KB
testcase_10	AC	278 ms 34,824 KB
testcase_11	AC	348 ms 32,628 KB
testcase_12	AC	158 ms 18,580 KB
testcase_13	AC	420 ms 44,040 KB
testcase_14	AC	390 ms 44,040 KB
testcase_15	AC	409 ms 44,040 KB
testcase_16	AC	172 ms 15,252 KB
testcase_17	AC	565 ms 34,056 KB
testcase_18	AC	531 ms 34,056 KB
testcase_19	AC	554 ms 34,056 KB
testcase_20	AC	554 ms 34,056 KB
testcase_21	AC	34 ms 6,676 KB
testcase_22	AC	34 ms 6,676 KB
testcase_23	AC	16 ms 6,676 KB
testcase_24	AC	32 ms 6,676 KB
testcase_25	AC	8 ms 6,676 KB
testcase_26	AC	2 ms 6,676 KB
testcase_27	AC	106 ms 15,636 KB
testcase_28	AC	356 ms 34,672 KB
testcase_29	AC	174 ms 34,672 KB
testcase_30	AC	350 ms 34,672 KB
testcase_31	AC	286 ms 34,672 KB
testcase_32	AC	230 ms 44,040 KB
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ソースコード

raw source code
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return true; } return false; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return true; } return false; }
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define mp make_pair
#define si(x) int(x.size())
const int mod=998244353,MAX=300005,INF=1<<30;



// BIT セグ木 遅延セグ木 のみ

// from: https://gist.github.com/yosupo06/ddd51afb727600fd95d9d8ad6c3c80c9
// (based on AtCoder STL)

#include <algorithm>
#include <array>
#ifdef _MSC_VER
#include <intrin.h>
#endif
namespace atcoder {
    namespace internal {
        int ceil_pow2(int n) {
            int x = 0;
            while ((1U << x) < (unsigned int)(n)) x++;
            return x;
        }
        int bsf(unsigned int n) {
#ifdef _MSC_VER
            unsigned long index;
            _BitScanForward(&index, n);
            return index;
#else
            return __builtin_ctz(n);
#endif
        }
    }  // namespace internal
    
}  // namespace atcoder

#include <cassert>
#include <numeric>
#include <type_traits>

namespace atcoder {
    
    namespace internal {
        
#ifndef _MSC_VER
        template <class T>
        using is_signed_int128 =
        typename std::conditional<std::is_same<T, __int128_t>::value ||
        std::is_same<T, __int128>::value,
        std::true_type,
        std::false_type>::type;
        
        template <class T>
        using is_unsigned_int128 =
        typename std::conditional<std::is_same<T, __uint128_t>::value ||
        std::is_same<T, unsigned __int128>::value,
        std::true_type,
        std::false_type>::type;
        
        template <class T>
        using make_unsigned_int128 =
        typename std::conditional<std::is_same<T, __int128_t>::value,
        __uint128_t,
        unsigned __int128>;
        
        template <class T>
        using is_integral = typename std::conditional<std::is_integral<T>::value ||
        is_signed_int128<T>::value ||
        is_unsigned_int128<T>::value,
        std::true_type,
        std::false_type>::type;
        
        template <class T>
        using is_signed_int = typename std::conditional<(is_integral<T>::value &&
                                                         std::is_signed<T>::value) ||
        is_signed_int128<T>::value,
        std::true_type,
        std::false_type>::type;
        
        template <class T>
        using is_unsigned_int =
        typename std::conditional<(is_integral<T>::value &&
                                   std::is_unsigned<T>::value) ||
        is_unsigned_int128<T>::value,
        std::true_type,
        std::false_type>::type;
        
        template <class T>
        using to_unsigned = typename std::conditional<
        is_signed_int128<T>::value,
        make_unsigned_int128<T>,
        typename std::conditional<std::is_signed<T>::value,
        std::make_unsigned<T>,
        std::common_type<T>>::type>::type;
        
#else
        
        template <class T> using is_integral = typename std::is_integral<T>;
        
        template <class T>
        using is_signed_int =
        typename std::conditional<is_integral<T>::value && std::is_signed<T>::value,
        std::true_type,
        std::false_type>::type;
        
        template <class T>
        using is_unsigned_int =
        typename std::conditional<is_integral<T>::value &&
        std::is_unsigned<T>::value,
        std::true_type,
        std::false_type>::type;
        
        template <class T>
        using to_unsigned = typename std::conditional<is_signed_int<T>::value,
        std::make_unsigned<T>,
        std::common_type<T>>::type;
        
#endif
        
        template <class T>
        using is_signed_int_t = std::enable_if_t<is_signed_int<T>::value>;
        
        template <class T>
        using is_unsigned_int_t = std::enable_if_t<is_unsigned_int<T>::value>;
        
        template <class T> using to_unsigned_t = typename to_unsigned<T>::type;
        
    }  // namespace internal
    
}  // namespace atcoder

#include <cassert>
#include <vector>

namespace atcoder {
    
    template <class T> struct fenwick_tree {
        using U = internal::to_unsigned_t<T>;
        
    public:
        fenwick_tree() : _n(0) {}
        fenwick_tree(int n) : _n(n), data(n) {}
        
        void add(int p, T x) {
            assert(0 <= p && p < _n);
            p++;
            while (p <= _n) {
                data[p - 1] += U(x);
                p += p & -p;
            }
        }
        
        T sum(int l, int r) {
            assert(0 <= l && l <= r && r <= _n);
            return sum(r) - sum(l);
        }
        
    private:
        int _n;
        std::vector<U> data;
        
        U sum(int r) {
            U s = 0;
            while (r > 0) {
                s += data[r - 1];
                r -= r & -r;
            }
            return s;
        }
    };
    
}  // namespace atcoder


#include <algorithm>
#include <cassert>
#include <iostream>
#include <vector>
namespace atcoder {
    
    template <class S,
    S (*op)(S, S),
    S (*e)(),
    class F,
    S (*mapping)(F, S),
    F (*composition)(F, F),
    F (*id)()>
    struct lazy_segtree {
    public:
        lazy_segtree() : lazy_segtree(0) {}
        lazy_segtree(int n) : lazy_segtree(std::vector<S>(n, e())) {}
        lazy_segtree(const std::vector<S>& v) : _n(int(v.size())) {
            log = internal::ceil_pow2(_n);
            size = 1 << log;
            d = std::vector<S>(2 * size, e());
            lz = std::vector<F>(size, id());
            for (int i = 0; i < _n; i++) d[size + i] = v[i];
            for (int i = size - 1; i >= 1; i--) {
                update(i);
            }
        }
        
        void set(int p, S x) {
            assert(0 <= p && p < _n);
            p += size;
            for (int i = log; i >= 1; i--) push(p >> i);
            d[p] = x;
            for (int i = 1; i <= log; i++) update(p >> i);
        }
        
        S get(int p) {
            assert(0 <= p && p < _n);
            p += size;
            for (int i = log; i >= 1; i--) push(p >> i);
            return d[p];
        }
        
        S prod(int l, int r) {
            assert(0 <= l && l <= r && r <= _n);
            if (l == r) return e();
            
            l += size;
            r += size;
            
            for (int i = log; i >= 1; i--) {
                if (((l >> i) << i) != l) push(l >> i);
                if (((r >> i) << i) != r) push(r >> i);
            }
            
            S sml = e(), smr = e();
            while (l < r) {
                if (l & 1) sml = op(sml, d[l++]);
                if (r & 1) smr = op(d[--r], smr);
                l >>= 1;
                r >>= 1;
            }
            
            return op(sml, smr);
        }
        
        S all_prod() { return d[1]; }
        
        void apply(int p, F f) {
            assert(0 <= p && p < _n);
            p += size;
            for (int i = log; i >= 1; i--) push(p >> i);
            d[p] = mapping(f, d[p]);
            for (int i = 1; i <= log; i++) update(p >> i);
        }
        void apply(int l, int r, F f) {
            assert(0 <= l && l <= r && r <= _n);
            if (l == r) return;
            
            l += size;
            r += size;
            
            for (int i = log; i >= 1; i--) {
                if (((l >> i) << i) != l) push(l >> i);
                if (((r >> i) << i) != r) push((r - 1) >> i);
            }
            
            {
                int l2 = l, r2 = r;
                while (l < r) {
                    if (l & 1) all_apply(l++, f);
                    if (r & 1) all_apply(--r, f);
                    l >>= 1;
                    r >>= 1;
                }
                l = l2;
                r = r2;
            }
            
            for (int i = 1; i <= log; i++) {
                if (((l >> i) << i) != l) update(l >> i);
                if (((r >> i) << i) != r) update((r - 1) >> i);
            }
        }
        
        template <bool (*g)(S)> int max_right(int l) {
            return max_right(l, [](S x) { return g(x); });
        }
        template <class G> int max_right(int l, G g) {
            assert(0 <= l && l <= _n);
            assert(g(e()));
            if (l == _n) return _n;
            l += size;
            for (int i = log; i >= 1; i--) push(l >> i);
            S sm = e();
            do {
                while (l % 2 == 0) l >>= 1;
                if (!g(op(sm, d[l]))) {
                    while (l < size) {
                        push(l);
                        l = (2 * l);
                        if (g(op(sm, d[l]))) {
                            sm = op(sm, d[l]);
                            l++;
                        }
                    }
                    return l - size;
                }
                sm = op(sm, d[l]);
                l++;
            } while ((l & -l) != l);
            return _n;
        }
        
        template <bool (*g)(S)> int min_left(int r) {
            return min_left(r, [](S x) { return g(x); });
        }
        template <class G> int min_left(int r, G g) {
            assert(0 <= r && r <= _n);
            assert(g(e()));
            if (r == 0) return 0;
            r += size;
            for (int i = log; i >= 1; i--) push((r - 1) >> i);
            S sm = e();
            do {
                r--;
                while (r > 1 && (r % 2)) r >>= 1;
                if (!g(op(d[r], sm))) {
                    while (r < size) {
                        push(r);
                        r = (2 * r + 1);
                        if (g(op(d[r], sm))) {
                            sm = op(d[r], sm);
                            r--;
                        }
                    }
                    return r + 1 - size;
                }
                sm = op(d[r], sm);
            } while ((r & -r) != r);
            return 0;
        }
        
    private:
        int _n, size, log;
        std::vector<S> d;
        std::vector<F> lz;
        
        void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); }
        void all_apply(int k, F f) {
            d[k] = mapping(f, d[k]);
            if (k < size) lz[k] = composition(f, lz[k]);
        }
        void push(int k) {
            all_apply(2 * k, lz[k]);
            all_apply(2 * k + 1, lz[k]);
            lz[k] = id();
        }
    };
    
}  // namespace atcoder

#include <algorithm>
#include <cassert>
#include <vector>

namespace atcoder {
    
    template <class S, S (*op)(S, S), S (*e)()> struct segtree {
    public:
        segtree() : segtree(0) {}
        segtree(int n) : segtree(std::vector<S>(n, e())) {}
        segtree(const std::vector<S>& v) : _n(int(v.size())) {
            log = internal::ceil_pow2(_n);
            size = 1 << log;
            d = std::vector<S>(2 * size, e());
            for (int i = 0; i < _n; i++) d[size + i] = v[i];
            for (int i = size - 1; i >= 1; i--) {
                update(i);
            }
        }
        
        void set(int p, S x) {
            assert(0 <= p && p < _n);
            p += size;
            d[p] = x;
            for (int i = 1; i <= log; i++) update(p >> i);
        }
        
        S get(int p) {
            assert(0 <= p && p < _n);
            return d[p + size];
        }
        
        S prod(int l, int r) {
            assert(0 <= l && l <= r && r <= _n);
            S sml = e(), smr = e();
            l += size;
            r += size;
            
            while (l < r) {
                if (l & 1) sml = op(sml, d[l++]);
                if (r & 1) smr = op(d[--r], smr);
                l >>= 1;
                r >>= 1;
            }
            return op(sml, smr);
        }
        
        S all_prod() { return d[1]; }
        
        template <bool (*f)(S)> int max_right(int l) {
            return max_right(l, [](S x) { return f(x); });
        }
        template <class F> int max_right(int l, F f) {
            assert(0 <= l && l <= _n);
            assert(f(e()));
            if (l == _n) return _n;
            l += size;
            S sm = e();
            do {
                while (l % 2 == 0) l >>= 1;
                if (!f(op(sm, d[l]))) {
                    while (l < size) {
                        l = (2 * l);
                        if (f(op(sm, d[l]))) {
                            sm = op(sm, d[l]);
                            l++;
                        }
                    }
                    return l - size;
                }
                sm = op(sm, d[l]);
                l++;
            } while ((l & -l) != l);
            return _n;
        }
        
        template <bool (*f)(S)> int min_left(int r) {
            return min_left(r, [](S x) { return f(x); });
        }
        template <class F> int min_left(int r, F f) {
            assert(0 <= r && r <= _n);
            assert(f(e()));
            if (r == 0) return 0;
            r += size;
            S sm = e();
            do {
                r--;
                while (r > 1 && (r % 2)) r >>= 1;
                if (!f(op(d[r], sm))) {
                    while (r < size) {
                        r = (2 * r + 1);
                        if (f(op(d[r], sm))) {
                            sm = op(d[r], sm);
                            r--;
                        }
                    }
                    return r + 1 - size;
                }
                sm = op(d[r], sm);
            } while ((r & -r) != r);
            return 0;
        }
        
    private:
        int _n, size, log;
        std::vector<S> d;
        
        void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); }
    };
    
}  // namespace atcoder

using T=pair<ll,int>;
using E=ll;

T f(T a,T b){
    return mp(a.fi+b.fi,a.se+b.se);
}

T g(E a,T b){
    return mp(b.fi+a*b.se,b.se);
}

E h(E a,E b){
    return a+b;
}

T ti(){
    return mp(0LL,1);
}

E ei(){
    return 0;
}

atcoder::lazy_segtree<T,f,ti,E,g,h,ei> seg;

//区間add,区間sum

struct HeavyLightDecomposition{
    int n;
    vector<int> sz,in,out,nxt,par,depth;
    vector<vector<int>> G;
    
    HeavyLightDecomposition(){}
    
    HeavyLightDecomposition(int n_){
        n=n_;
        sz.assign(n,0);
        in.assign(n,0);
        out.assign(n,0);
        nxt.assign(n,0);
        par.assign(n,0);
        depth.assign(n,0);
        G.assign(n,vector<int>());
    }
    
    void add_edge(int u,int v){
        G[u].push_back(v);
        G[v].push_back(u);
    }
    
    void dfs_sz(int u,int p){
        par[u]=p;
        sz[u]=1;
        if(G[u].size()&&G[u][0]==p) swap(G[u][0],G[u].back());
        for(auto &a:G[u]){
            if(a==p) continue;
            depth[a]=depth[u]+1;
            dfs_sz(a,u);
            sz[u]+=sz[a];
            if(sz[a]>sz[G[u][0]]){
                swap(a,G[u][0]);
            }
        }
    }
    
    void dfs_hld(int u,int p,int &t){
        in[u]=t++;
        for(auto a:G[u]){
            if(a==p) continue;
            nxt[a]=(a==G[u][0] ? nxt[u] : a);
            dfs_hld(a,u,t);
        }
        out[u]=t;
    }
    
    void build(int u){
        int t=0;
        dfs_sz(u,-1);
        dfs_hld(u,-1,t);
    }
    
    int lca(int u,int v){
        if(in[u]>in[v]) swap(u,v);
        if(nxt[u]==nxt[v]) return u;
        return lca(u,par[nxt[v]]);
    }
    
    int mov1(int a,int b){
        if(a==b) return a;
        int c=lca(a,b);
        if(c==a){
            int l=0,r=si(G[a]);
            while(r-l>1){
                int m=(l+r)/2;
                if(par[a]==G[a][m]){
                    if(m+1<r){
                        if(r-l==2){
                            l=m+1;
                            break;
                        }
                        if(in[G[a][m+1]]<=in[b]) l=m+1;
                        else r=m;
                    }else{
                        if(r-l==2){
                            l=m-1;
                            break;
                        }
                        if(in[G[a][m-1]]<=in[b]) l=m-1;
                        else r=m-1;
                    }
                }else{
                    if(in[G[a][m]]<=in[b]) l=m;
                    else r=m;
                }
            }
            if(par[a]!=G[a][l]) return G[a][l];
            else return G[a][l+1];
            //return G[a][l];
        }else{
            return par[a];
        }
    }
    //aからbに向かって1進んだところ
};

int main(){
    
    std::ifstream in("text.txt");
    std::cin.rdbuf(in.rdbuf());
    cin.tie(0);
    ios::sync_with_stdio(false);
    
    int N,Q;cin>>N>>Q;
    vector<T> def(N,mp(0,1));
    atcoder::lazy_segtree<T,f,ti,E,g,h,ei> seg(def);
    
    HeavyLightDecomposition hld(N);
    
    vector<ll> A(N);
    for(int i=0;i<N;i++) cin>>A[i];
    
    for(int i=0;i<N-1;i++){
        int a,b;cin>>a>>b;a--;b--;
        hld.add_edge(a,b);
    }
    hld.build(0);
    
    auto ad=[&](int i,ll x){
        if(i){
            int p=hld.par[i];
            //cout<<i<<" "<<hld.in[p]<<" "<<hld.out[p]<<" "<<x<<endl;
            seg.apply(hld.in[p],hld.out[p],x);
        }
    };
    
    for(int i=0;i<N;i++){
        ad(i,A[i]);
    }
    
    while(Q--){
        int t,a,b;cin>>t>>a>>b;
        if(t==0){
            a--;
            ad(a,b);
            A[a]+=b;
        }else{
            a--;b--;
            int c=hld.lca(a,b);
            ll re=seg.get(hld.in[a]).fi+seg.get(hld.in[b]).fi-seg.get(hld.in[c]).fi;
            re+=A[c];
            if(c){
                re+=A[hld.par[c]];
                re-=seg.get(hld.in[hld.par[c]]).fi;
            }
            cout<<re<<"\n";
        }
    }
}
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結果

テストケース

ソースコード
