結果

問題 No.1641 Tree Xor Query
ユーザー noiminoimi
提出日時 2021-08-06 21:53:50
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 47 ms / 5,000 ms
コード長 19,571 bytes
コンパイル時間 3,613 ms
コンパイル使用メモリ 240,100 KB
実行使用メモリ 26,108 KB
最終ジャッジ日時 2024-09-17 01:50:07
合計ジャッジ時間 4,703 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge2
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
6,816 KB
testcase_01 AC 2 ms
6,940 KB
testcase_02 AC 2 ms
6,944 KB
testcase_03 AC 2 ms
6,944 KB
testcase_04 AC 2 ms
6,940 KB
testcase_05 AC 3 ms
6,944 KB
testcase_06 AC 3 ms
6,944 KB
testcase_07 AC 3 ms
6,944 KB
testcase_08 AC 2 ms
6,944 KB
testcase_09 AC 3 ms
6,944 KB
testcase_10 AC 2 ms
6,940 KB
testcase_11 AC 2 ms
6,940 KB
testcase_12 AC 2 ms
6,940 KB
testcase_13 AC 47 ms
25,980 KB
testcase_14 AC 47 ms
26,108 KB
testcase_15 AC 4 ms
6,944 KB
testcase_16 AC 6 ms
6,940 KB
testcase_17 AC 4 ms
6,940 KB
testcase_18 AC 5 ms
6,944 KB
testcase_19 AC 3 ms
6,944 KB
testcase_20 AC 32 ms
19,548 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp:575:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  575 | main() {
      | ^~~~

ソースコード

diff # 

#pragma region Macros
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define rep2(i, a, b) for(ll i = a; i <= b; ++i)
#define rep(i, n) for(ll i = 0; i < n; ++i)
#define rep3(i, a, b) for(ll i = a; i >= b; --i)
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pb push_back
#define eb emplace_back
#define vi vector<int>
#define vll vector<ll>
#define vpi vector<pii>
#define vpll vector<pll>
#define overload2(_1, _2, name, ...) name
#define vec(type, name, ...) vector<type> name(__VA_ARGS__)
#define VEC(type, name, size)                                                                                                                                  \
    vector<type> name(size);                                                                                                                                   \
    IN(name)
#define vv(type, name, h, ...) vector<vector<type>> name(h, vector<type>(__VA_ARGS__))
#define VV(type, name, h, w)                                                                                                                                   \
    vector<vector<type>> name(h, vector<type>(w));                                                                                                             \
    IN(name)
#define vvv(type, name, h, w, ...) vector<vector<vector<type>>> name(h, vector<vector<type>>(w, vector<type>(__VA_ARGS__)))
#define fi first
#define se second
#define all(c) begin(c), end(c)
#define ios ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define lb(c, x) distance((c).begin(), lower_bound(all(c), (x)))
#define ub(c, x) distance((c).begin(), upper_bound(all(c), (x)))
using namespace std;
template <class T> using pq = priority_queue<T>;
template <class T> using pqg = priority_queue<T, vector<T>, greater<T>>;
#define Size(c) (int)(c).size()
#define INT(...)                                                                                                                                               \
    int __VA_ARGS__;                                                                                                                                           \
    IN(__VA_ARGS__)
#define LL(...)                                                                                                                                                \
    ll __VA_ARGS__;                                                                                                                                            \
    IN(__VA_ARGS__)
#define ULL(...)                                                                                                                                               \
    ull __VA_ARGS__;                                                                                                                                           \
    IN(__VA_ARGS__)
#define STR(...)                                                                                                                                               \
    string __VA_ARGS__;                                                                                                                                        \
    IN(__VA_ARGS__)
#define CHR(...)                                                                                                                                               \
    char __VA_ARGS__;                                                                                                                                          \
    IN(__VA_ARGS__)
#define DBL(...)                                                                                                                                               \
    double __VA_ARGS__;                                                                                                                                        \
    IN(__VA_ARGS__)
#define LD(...)                                                                                                                                                \
    ld __VA_ARGS__;                                                                                                                                            \
    IN(__VA_ARGS__)
int scan() { return getchar(); }
template <class T> void scan(T a) { cin >> a; }
void scan(int &a) { cin >> a; }
void scan(long long &a) { cin >> a; }
void scan(char &a) { cin >> a; }
void scan(double &a) { cin >> a; }
void scan(long double &a) { cin >> a; }
void scan(char a[]) { scanf("%s", a); }
void scan(string &a) { cin >> a; }
template <class T> void scan(vector<T> &);
template <class T, size_t size> void scan(array<T, size> &);
template <class T, class L> void scan(pair<T, L> &);
template <class T, size_t size> void scan(T (&)[size]);
template <class T> void scan(vector<T> &a) {
    for(auto &i : a) scan(i);
}
template <class T> void scan(deque<T> &a) {
    for(auto &i : a) scan(i);
}
template <class T, size_t size> void scan(array<T, size> &a) {
    for(auto &i : a) scan(i);
}
template <class T, class L> void scan(pair<T, L> &p) {
    scan(p.first);
    scan(p.second);
}
template <class T, size_t size> void scan(T (&a)[size]) {
    for(auto &i : a) scan(i);
}
template <class T> void scan(T &a) { cin >> a; }
void IN() {}
template <class Head, class... Tail> void IN(Head &head, Tail &...tail) {
    scan(head);
    IN(tail...);
}
string stin() {
    string s;
    cin >> s;
    return s;
}
template <class T> inline bool chmax(T &a, T b) {
    if(a < b) {
        a = b;
        return 1;
    }
    return 0;
}
template <class T> inline bool chmin(T &a, T b) {
    if(a > b) {
        a = b;
        return 1;
    }
    return 0;
}
vi iota(int n) {
    vi a(n);
    iota(all(a), 0);
    return a;
}
template <class T> void UNIQUE(vector<T> &x) {
    sort(all(x));
    x.erase(unique(all(x)), x.end());
}
int in() {
    int x;
    cin >> x;
    return x;
}
ll lin() {
    unsigned long long x;
    cin >> x;
    return x;
}
void print() { putchar(' '); }
void print(bool a) { cout << a; }
void print(int a) { cout << a; }
void print(long long a) { cout << a; }
void print(char a) { cout << a; }
void print(string &a) { cout << a; }
void print(double a) { cout << a; }
template <class T> void print(const vector<T> &);
template <class T, size_t size> void print(const array<T, size> &);
template <class T, class L> void print(const pair<T, L> &p);
template <class T, size_t size> void print(const T (&)[size]);
template <class T> void print(const vector<T> &a) {
    if(a.empty()) return;
    print(a[0]);
    for(auto i = a.begin(); ++i != a.end();) {
        cout << " ";
        print(*i);
    }
    cout << endl;
}
template <class T> void print(const deque<T> &a) {
    if(a.empty()) return;
    print(a[0]);
    for(auto i = a.begin(); ++i != a.end();) {
        cout << " ";
        print(*i);
    }
}
template <class T, size_t size> void print(const array<T, size> &a) {
    print(a[0]);
    for(auto i = a.begin(); ++i != a.end();) {
        cout << " ";
        print(*i);
    }
}
template <class T, class L> void print(const pair<T, L> &p) {
    cout << '(';
    print(p.first);
    cout << ",";
    print(p.second);
    cout << ')';
}
template <class T> void print(set<T> &x) {
    for(auto e : x) print(e), cout << " ";
    cout << endl;
}
template <class T> void print(multiset<T> &x) {
    for(auto e : x) print(e), cout << " ";
    cout << endl;
}
template <class T, size_t size> void print(const T (&a)[size]) {
    print(a[0]);
    for(auto i = a; ++i != end(a);) {
        cout << " ";
        print(*i);
    }
}
template <class T> void print(const T &a) { cout << a; }
int out() {
    putchar('\n');
    return 0;
}
template <class T> int out(const T &t) {
    print(t);
    putchar('\n');
    return 0;
}
template <class Head, class... Tail> int out(const Head &head, const Tail &...tail) {
    print(head);
    putchar(' ');
    out(tail...);
    return 0;
}
ll gcd(ll a, ll b) {
    while(b) {
        ll c = b;
        b = a % b;
        a = c;
    }
    return a;
}
ll lcm(ll a, ll b) {
    if(!a || !b) return 0;
    return a * b / gcd(a, b);
}
vector<pll> factor(ll x) {
    vector<pll> ans;
    for(ll i = 2; i * i <= x; i++)
        if(x % i == 0) {
            ans.push_back({i, 1});
            while((x /= i) % i == 0) ans.back().second++;
        }
    if(x != 1) ans.push_back({x, 1});
    return ans;
}
vector<int> divisor(int x) {
    vector<int> ans;
    for(int i = 1; i * i <= x; i++)
        if(x % i == 0) {
            ans.pb(i);
            if(i * i != x) ans.pb(x / i);
        }
    return ans;
}
template <typename T> void zip(vector<T> &x) {
    vector<T> y = x;
    sort(all(y));
    for(int i = 0; i < x.size(); ++i) { x[i] = lb(y, x[i]); }
}
int popcount(ll x) { return __builtin_popcountll(x); }
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rnd(int n) { return uniform_int_distribution<int>(0, n - 1)(rng); }
template <typename T> void shuffle(vector<T> &v) {
    rep3(i, v.size() - 1, 1) { swap(v[i], v[rnd(i)]); }
}
#define endl '\n'
vector<string> YES{"NO", "YES"};
vector<string> Yes{"No", "Yes"};
vector<string> yes{"no", "yes"};

#ifdef _LOCAL
#undef endl
#define debug(x)                                                                                                                                               \
    cout << #x << ": ";                                                                                                                                        \
    print(x);                                                                                                                                                  \
    cout << endl;
void err() {}
template <class T> void err(const T &t) {
    print(t);
    cout << " ";
}
template <class Head, class... Tail> void err(const Head &head, const Tail &...tail) {
    print(head);
    putchar(' ');
    out(tail...);
}
#else
#define debug(x)
template <class... T> void err(const T &...) {}
#endif

template <typename T> struct edge {
    int from, to;
    T cost;
    int id;
    edge(int to, T cost) : from(-1), to(to), cost(cost) {}
    edge(int from, int to, T cost) : from(from), to(to), cost(cost) {}
    // edge(int from,int to,T cost,int id):from(from),to(to),cost(cost),id(id){}
    edge &operator=(const int &x) {
        to = x;
        return *this;
    }
    operator int() const { return to; }
};

template <typename T> using Edges = vector<edge<T>>;
template <typename T> using WeightedTree = vector<Edges<T>>;
template <typename T> using Edges = vector<edge<T>>;
template <typename T> using WeightedGraph = vector<Edges<T>>;
template <typename T> using Matrix = vector<vector<T>>;
using Graph = vector<vector<int>>;
using tree = vector<vector<int>>;

tree getTree(int n, int offset = 1) {
    tree res(n);
    for(int i = 0; i < n - 1; i++) {
        int a, b;
        cin >> a >> b;
        a -= offset, b -= offset;
        res[a].emplace_back(b);
        res[b].emplace_back(a);
    }
    return res;
}
template <typename T> WeightedTree<T> getWeightedTree(int n, int offset = 1) {
    WeightedTree<T> res(n);
    for(int i = 0; i < n - 1; i++) {
        int a, b;
        cin >> a >> b;
        a -= offset, b -= offset;
        T c;
        cin >> c;
        res[a].emplace_back(b, c);
        res[b].emplace_back(a, c);
    }
    return res;
}

Graph getGraph(int n, int m, int offset = 1) {
    Graph res(n);
    for(int i = 0; i < m; ++i) {
        int a, b;
        cin >> a >> b;
        a -= offset, b -= offset;
        res[a].emplace_back(b);
        res[b].emplace_back(a);
    }
    return res;
}

template <typename T> WeightedGraph<T> getWeightedGraph(int n, int m, int offset = 1) {
    WeightedGraph<T> res(n);
    for(int i = 0; i < m; ++i) {
        int a, b;
        cin >> a >> b;
        T c;
        cin >> c;
        res[a].emplace_back(b, c);
        res[b].emplace_back(a, c);
    }
}
struct Setup_io {
    Setup_io() {
        ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
        cout << fixed << setprecision(15);
    }
} setup_io;
#pragma endregion

// _________コーディングはここから！！___________
template <typename G> struct HLDecomposition {
    G &g;
    vector<int> sz, in, out, head, rev, par;

    HLDecomposition(G &g) : g(g), sz(g.size()), in(g.size()), out(g.size()), head(g.size()), rev(g.size()), par(g.size()) {}

    void dfs_sz(int idx, int p) {
        par[idx] = p;
        sz[idx] = 1;
        if(g[idx].size() and g[idx][0] == p) swap(g[idx][0], g[idx].back());
        for(auto &to : g[idx]) {
            if(to == p) continue;
            dfs_sz(to, idx);
            sz[idx] += sz[to];
            if(sz[g[idx][0]] < sz[to]) swap(g[idx][0], to);
        }
    }

    void dfs_hld(int idx, int par, int &times) {
        in[idx] = times++;
        rev[in[idx]] = idx;
        for(auto &to : g[idx]) {
            if(to == par) continue;
            head[to] = (g[idx][0] == to ? head[idx] : to);
            dfs_hld(to, idx, times);
        }
        out[idx] = times;
    }

    template <typename T> void dfs_hld(int idx, int par, int &times, vector<T> &v) {
        in[idx] = times++;
        rev[in[idx]] = idx;
        for(auto &to : g[idx]) {
            if(to == par) {
                v[in[idx]] = to.cost;
                continue;
            }
            head[to] = (g[idx][0] == to ? head[idx] : to);
            dfs_hld(to, idx, times, v);
        }
        out[idx] = times;
    }

    template <typename T> void dfs_hld(int idx, int par, int &times, vector<T> &v, vector<T> &a) {
        in[idx] = times++;
        rev[in[idx]] = idx;
        v[in[idx]] = a[idx];
        for(auto &to : g[idx]) {
            if(to == par) continue;
            head[to] = (g[idx][0] == to ? head[idx] : to);
            dfs_hld(to, idx, times, v, a);
        }
        out[idx] = times;
    }

    void build() {
        dfs_sz(0, -1);
        int t = 0;
        dfs_hld(0, -1, t);
    }

    template <typename T> vector<T> build() {
        dfs_sz(0, -1);
        int t = 0;
        vector<T> res(g.size());
        dfs_hld(0, -1, t, res);
        return res;
    }

    // 頂点属性で build する場合
    template <typename T> vector<T> build(vector<T> &a) {
        dfs_sz(0, -1);
        int t = 0;
        vector<T> res(g.size());
        dfs_hld(0, -1, t, res, a);
        return res;
    }

    int la(int v, int k) {
        while(1) {
            int u = head[v];
            if(in[v] - k >= in[u]) return rev[in[v] - k];
            k -= in[v] - in[u] + 1;
            v = par[u];
        }
    }

    int lca(int u, int v) {
        for(;; v = par[head[v]]) {
            if(in[u] > in[v]) swap(u, v);
            if(head[u] == head[v]) return u;
        }
    }

    template <typename T, typename Q, typename F> T query(int u, int v, const T &e, const Q &q, const F &f, bool edge = false) {
        T l = e, r = e;
        for(;; v = par[head[v]]) {
            if(in[u] > in[v]) swap(u, v), swap(l, r);
            if(head[u] == head[v]) break;
            l = f(q(in[head[v]], in[v] + 1), l);
        }
        return f(f(q(in[u] + edge, in[v] + 1), l), r);
    }

    template <typename T, typename Q, typename Q2, typename F> T query(int u, int v, const T &e, const Q &q1, const Q2 &q2, const F &f, bool edge = false) {
        T l = e, r = e;
        for(;;) {
            if(head[u] == head[v]) break;
            if(in[u] > in[v]) {
                l = f(l, q2(in[head[u]], in[u] + 1));
                u = par[head[u]];
            } else {
                r = f(q1(in[head[v]], in[v] + 1), r);
                v = par[head[v]];
            }
        }
        if(in[u] > in[v]) return f(f(l, q2(in[v] + edge, in[u] + 1)), r);
        return f(f(l, q1(in[u] + edge, in[v] + 1)), r);
    }

    template <typename Q> void add(int u, int v, const Q &q, bool edge = false) {
        for(;; v = par[head[v]]) {
            if(in[u] > in[v]) swap(u, v);
            if(head[u] == head[v]) break;
            q(in[head[v]], in[v] + 1);
        }
        q(in[u] + edge, in[v] + 1);
    }
};
template <typename T = long long> struct SegmentTree {
    using F = function<T(T, T)>;
#define clz(x) __builtin_clz(x)
    int sz;
    vector<T> seg;
    const F f;
    const T unit;

    SegmentTree(int n, const F f, const T &unit) : f(f), unit(unit), sz(n - 1 ? 1 << (32 - clz(n - 1)) : 1) { seg.assign(2 * sz, unit); }

    SegmentTree(vector<T> &a, const F f, const T &unit) : f(f), sz((int)a.size() > 1 ? 1 << (32 - clz(a.size() - 1)) : 1), unit(unit) {
        int n0 = a.size();
        seg.assign(2 * sz, unit);
        for(int i = 0; i < n0; ++i) seg[i + sz] = a[i];
        for(int i = sz - 1; i > 0; --i) seg[i] = f(seg[i << 1], seg[(i << 1) | 1]);
    }

    T query(int l, int r) {
        T x = unit;
        for(int d = r - l; d >= 1; d = r - l) {
            int L = l | ((1U << 31) >> clz(d));
            int k = __builtin_ctz(L);
            x = f(x, seg[(sz | l) >> k]);
            l += L & (-L);
        }
        return x;
    }

    void update(int i, T x) {
        int k = i + sz;
        seg[k] = x;
        for(k = k >> 1; k > 0; k >>= 1) { seg[k] = f(seg[k << 1], seg[(k << 1) | 1]); }
    }

    void add(int i, T x) {
        int k = i + sz;
        seg[k] = f(seg[k], x);
        for(k = k >> 1; k > 0; k >>= 1) { seg[k] = f(seg[k << 1], seg[(k << 1) | 1]); }
    }

    T operator[](int k) const { return seg[sz + k]; }
};
template <const int sz = 5 * 10000000, typename T = long long> struct IO {
    char reader[sz], writer[sz];
    char *now, *now2 = writer;
    IO() {
        reader[fread(reader, sizeof(char), sizeof(char) * sz, stdin)];
        now = reader;
    }
    inline T read() {
        while(*now && *now <= 32) now++;
        if(*now == '-') {
            now++;
            T res = 0;
            while('0' <= *now and *now <= '9') { res = res * 10 + *now++ - '0'; }
            return -res;
        } else {
            T res = 0;
            while('0' <= *now and *now <= '9') { res = res * 10 + *now++ - '0'; }
            return res;
        }
    }
    inline string read_str() {
        string res;
        while(*now and *now != '\n' and *now != ' ') res += *now++;
        now++;
        return res;
    }
    inline void write(T x, char margin = ' ') {
        if(x == 0) {
            putchar('0');
            putchar(margin);
            return;
        }
        if(x < 0) {
            putchar('-');
            x = -x;
        }
        while(x) {
            *now2 = '0' + x % 10;
            now2++;
            x /= 10;
        }
        do {
            now2--;
            putchar(*now2);
        } while(now2 != writer);
        putchar(margin);
    }
    inline void write_str(string s, char margin = ' ') {
        for(auto c : s) putchar(c);
        putchar(margin);
    }
};
IO io;
main() {
    int n = io.read(), q = io.read();
    vll a(n);
    rep(i, n) a[i] = io.read();
    tree g(n);
    rep(i, n - 1) {
        int x = io.read() - 1, y = io.read() - 1;
        g[x].eb(y), g[y].eb(x);
    }
    HLDecomposition hld(g);
    auto b = hld.build(a);
    SegmentTree<ll> seg(
        b, [](ll x, ll y) { return x ^ y; }, 0LL);
    while(q--) {
        int id = io.read();
        if(id == 2) {
            int x = io.read() - 1, y = io.read();
            io.write(seg.query(hld.in[x], hld.out[x]), '\n');
        } else {
            int x = io.read() - 1, a = io.read();
            seg.update(hld.in[x], a ^ seg[hld.in[x]]);
        }
    }
}
0