#686666 (C++17) No.1641 Tree Xor Query

• 問題: No.1641 Tree Xor Query
• ユーザー: tokusakurai
• 提出日時: 2021-08-06 22:13:06
• 言語: C++17 (gcc 15.2.0 + boost 1.90.0)
• 結果: AC
• 実行時間: 41 ms / 5,000 ms
• コード長: 3,347 bytes
• コンパイル時間: 1,343 ms
• コンパイル使用メモリ: 223,472 KB
• 実行使用メモリ: 19,300 KB
• 最終ジャッジ日時: 2026-06-22 11:12:15
• 合計ジャッジ時間: 2,770 ms
• ジャッジサーバーID （参考情報）: judge1_0 / judge2_0

ファイルパターン	結果
sample	AC * 3
other	AC * 18

コンパイルメッセージ

In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/algorithm:62,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/x86_64-pc-linux-gnu/bits/stdc++.h:53,
                 from main.cpp:1:
In function '_OutIter std::__copy_move_a2(_InIter, _Sent, _OutIter) [with bool _IsMove = false; _InIter = const int*; _Sent = const int*; _OutIter = int*]',
    inlined from '_OI std::__copy_move_a1(_II, _II, _OI) [with bool _IsMove = false; _II = const int*; _OI = int*]' at /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/bits/stl_algobase.h:492:42,
    inlined from '_OI std::__copy_move_a(_II, _II, _OI) [with bool _IsMove = false; _II = __gnu_cxx::__normal_iterator<const int*, vector<int> >; _OI = __gnu_cxx::__normal_iterator<int*, vector<int> >]' at /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/bits/stl_algobase.h:500:31,
    inlined from '_OI std::copy(_II, _II, _OI) [with _II = __gnu_cxx::__normal_iterator<const int*, vector<int> >; _OI = __gnu_cxx::__normal_iterator<int*, vector<int> >]' at /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/bits/stl_algobase.h:642:7,
    inlined from 'Binary_Indexed_Tree<T>::Binary_Indexed_Tree(const std::vector<_Tp>&) [with T = int]' at main.cpp:39:13,
    inlined from 'int main()' at main.cpp:129:35:
/home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/bits/stl_algobase.h:426:32: warning: 'void* __builtin_memmove(void*, const void*, long unsigned int)' writing between 17179869180 and 9223372036854775804 bytes into a region of size 0 overflows the destination [-Wstringop-overflow=]
  426 |               __builtin_memmove(_GLIBCXX_TO_ADDR(__result),
      |               ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
  427 |                                 _GLIBCXX_TO_ADDR(__first),
      |                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~
  428 |                                 __n * sizeof(*__first));
      |           

ソースコード

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < n; i++)
#define rep2(i, x, n) for(int i = x; i <= n; i++)
#define rep3(i, x, n) for(int i = x; i >= n; i--)
#define each(e, v) for(auto &e: v)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
const int MOD = 1000000007;
//const int MOD = 998244353;
const int inf = (1<<30)-1;
const ll INF = (1LL<<60)-1;
template<typename T> bool chmax(T &x, const T &y) {return (x < y)? (x = y, true) : false;};
template<typename T> bool chmin(T &x, const T &y) {return (x > y)? (x = y, true) : false;};

struct io_setup{
    io_setup(){
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cout << fixed << setprecision(15);
    }
} io_setup;

template<typename T>
struct Binary_Indexed_Tree{
    vector<T> bit;
    const int n;
    
    Binary_Indexed_Tree(const vector<T> &v) : n((int)v.size()){
        bit.resize(n+1);
        copy(begin(v), end(v), begin(bit)+1);
        for(int a = 2; a <= n; a <<= 1){
            for(int b = a; b <= n; b += a){
                bit[b] ^= bit[b-a/2];
            }
        }
    }
    
    void add(int i, const T &x){
        for(i++; i <= n; i += (i & -i)) bit[i] ^= x;
    }

    void change(int i, const T&x){
        add(i, x-query(i, i+1));
    }
    
    T sum(int i) const{
        T ret = 0;
        for(; i > 0; i -= (i & -i)) ret ^= bit[i];
        return ret;
    }
    
    T query(int l, int r) const{
        return sum(r) ^ sum(l);
    }

    T operator [] (int i) const {return query(i, i+1);}

    int lower_bound(T x) const{
        int ret = 0;
        for(int k = 31-__builtin_clz(n); k >= 0; k--){
            if(ret+(1<<k) <= n && bit[ret+(1<<k)] < x) x ^= bit[ret += (1<<k)]; 
        }
        return ret;
    }

    int upper_bound(T x) const {return lower_bound(x+1);}
};

template<bool directed = false>
struct Graph{
    struct edge{
        int to, id;
        edge(int to, int id) : to(to), id(id) {}
    };

    vector<vector<edge>> es;
    const int n;
    int m;

    vector<int> vs; //DFS順
    vector<int> ls, rs; //iの部分木は区間[ls[i],rs[i])に対応し、vs[ls[i]] = i

    Graph(int n) : es(n), n(n), m(0), ls(n), rs(n) {}

    void add_edge(int from, int to){
        es[from].emplace_back(to, m);
        if(!directed) es[to].emplace_back(from, m);
        m++;
    }

    void euler_tour(int now, int pre = -1){
        ls[now] = vs.size(), vs.push_back(now);
        for(auto &e: es[now]){
            if(e.to != pre) euler_tour(e.to, now);
        }
        rs[now] = vs.size();
    }
};

int main(){
    int N, Q; cin >> N >> Q;

    Graph G(N);

    vector<int> c(N);
    rep(i, N) cin >> c[i];
    

    rep(i, N-1){
        int u, v; cin >> u >> v; u--, v--;
        G.add_edge(u, v);
    }

    G.euler_tour(0);

    vector<int> a(N);
    rep(i, N){
        a[G.ls[i]] = c[i];
    }
    Binary_Indexed_Tree<int> bit(a);

    while(Q--){
        int t, x, y; cin >> t >> x >> y; x--;
        if(t == 1){
            bit.add(G.ls[x], y);
        }
        else{
            cout << bit.query(G.ls[x], G.rs[x]) << '\n';
        }
    }
}