oj.uz

Submission #875181

# Submission time Handle Problem Language Result Execution time Memory
875181 2023-11-18T18:33:23 Z Dr_rabi3 Klasika (COCI20_klasika) C++14
33 / 110
 1723 ms 524288 KB 
/***   Coding for Fun ^^ وَمَا تَوْفِيقِي إِلَّا بِاللَّهِ ۚ عَلَيْهِ تَوَكَّلْتُ وَإِلَيْهِ أُنِيبُ    ***/
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#include <bits/stdc++.h>
#include <ext/numeric>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
#define ull unsigned ll
#define ld long double
#define ed '\n'
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fixed(x) fixed<<setprecision(x)
#define memo(dp,x) memset(dp,x,sizeof(dp))
#define sumOf(a) (ll)((-1 + sqrt(8LL * a + 1)) / 2)
#define debug cerr
#define Good_Bay return

using namespace std;
using namespace __gnu_pbds;
std::mt19937_64 rng(std::chrono::system_clock::now().time_since_epoch().count());

template < typename T > using ordered_set = tree< T, null_type, less_equal< T >, rb_tree_tag, tree_order_statistics_node_update >;

template < typename T > istream& operator >> (istream& in, vector < T >& v) {
    for (auto& x : v) in >> x;
    return in;
}

template < typename T > ostream& operator << (ostream& out, const vector < T >& v) {
    for (const T& x : v) out << x << ' ';
    return out;
}


void Accept() { // for VS code
    ios_base::sync_with_stdio(false);
    cout.tie(nullptr);
    cin.tie(nullptr);
    // #ifndef ONLINE_JUDGE
    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);
    // #else
        // freopen("darwin.in", "r", stdin);
        // freopen("visitfj.out", "w", stdout);
    // #endif
}

constexpr int mod = 1e9 + 7, oo = 0x3f3f3f3f, N = 1e6 + 5;
const double pi = acos(-1), EPS = 1e-7;
constexpr ll OO = 0x3f3f3f3f3f3f3f3f;

constexpr int dy[] = { 0 , 1 , -1 , 0  , 1 , -1 , 1  , -1 };
constexpr int dx[] = { 1 , 0 ,  0 , -1 , 1 , -1 , -1 ,  1 };

vector<int>adj[N];
vector<int>in(N), out(N), preXor(N);
int id = 1;

void dfs(int u) {
    in[u] = id++;
    for (auto v : adj[u])dfs(v);
    out[u] = id - 1;
}

struct binary_trie {
    vector<array<int, 2>> trie;
    vector<array<set<int>, 2>>tin;
    int LOG;
    binary_trie(int _LOG) : LOG(_LOG) {
        trie = { array<int, 2>{-1, -1} };
        tin = { array<set<int>, 2>{} };
    }

    void insert(int u) {
        int x = preXor[u];
        int v = 0;
        for (int bit = LOG - 1; bit >= 0; --bit) {
            int to = ((1 << bit) & x ? 1 : 0);
            if (~trie[v][to]) {
                tin[v][to].insert(in[u]);
                v = trie[v][to];
            }
            else {
                tin[v][to].insert(in[u]);
                v = (trie[v][to] = (int)trie.size());
                trie.push_back(array<int, 2>{-1, -1});
                tin.push_back(array<set<int>, 2>{});
            }
        }
    }

    int query_max(int x, int u) {
        int v = 0, sum = 0;
        for (int bit = LOG - 1; bit >= 0; bit--) {
            int to = ((1 << bit) & x ? 0 : 1);
            if (~trie[v][to] and
                tin[v][to].lower_bound(in[u]) != tin[v][to].lower_bound(out[u] + 1)) {
                v = trie[v][to], sum += to * (1 << bit);
            }
            else v = trie[v][1 - to], sum += (1 - to) * (1 << bit);
        }
        return x ^ sum;
    }
};


void doWork(int T) {
    int q, n = 1;
    cin >> q;
    vector<pair<string, pair<int, int>>>Q(q);
    for (auto& i : Q) {
        cin >> i.first >> i.second.first >> i.second.second;
        if (i.first == "Add") {
            adj[i.second.first].push_back(++n);
            preXor[n] = preXor[i.second.first] ^ i.second.second;
        }
    }
    dfs(1);
    binary_trie tr(30);
    n = 1;
    tr.insert(n++);
    for (auto i : Q) {
        if (i.first == "Add") tr.insert(n++);
        else cout << tr.query_max(preXor[i.second.first], i.second.second) << ed;
    }
}

int main() {
    debug << "M3L4 El-Code MYTFHM4";
    Accept();
    int _ = 1;
    // cin >> _;
    for (int __ = 1;__ <= _;__++) {
        // cout << "Case " << __ << ": ";
        doWork(__);
        if (__ < _)cout << '\n';
        // cout << '\n';
    }
    Good_Bay 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 35928 KB Output is correct
2 Correct 10 ms 35932 KB Output is correct
3 Correct 11 ms 36188 KB Output is correct
4 Correct 11 ms 36248 KB Output is correct
5 Correct 10 ms 35676 KB Output is correct
6 Correct 10 ms 35932 KB Output is correct
7 Correct 10 ms 36188 KB Output is correct
8 Correct 11 ms 36248 KB Output is correct
9 Correct 10 ms 35932 KB Output is correct
10 Correct 11 ms 36204 KB Output is correct
11 Correct 11 ms 36188 KB Output is correct
12 Correct 11 ms 36244 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 35928 KB Output is correct
2 Correct 10 ms 35932 KB Output is correct
3 Correct 11 ms 36188 KB Output is correct
4 Correct 11 ms 36248 KB Output is correct
5 Correct 10 ms 35676 KB Output is correct
6 Correct 10 ms 35932 KB Output is correct
7 Correct 10 ms 36188 KB Output is correct
8 Correct 11 ms 36248 KB Output is correct
9 Correct 10 ms 35932 KB Output is correct
10 Correct 11 ms 36204 KB Output is correct
11 Correct 11 ms 36188 KB Output is correct
12 Correct 11 ms 36244 KB Output is correct
13 Correct 14 ms 37908 KB Output is correct
14 Correct 15 ms 40204 KB Output is correct
15 Correct 16 ms 40968 KB Output is correct
16 Correct 18 ms 45836 KB Output is correct
17 Correct 14 ms 37908 KB Output is correct
18 Correct 15 ms 40976 KB Output is correct
19 Correct 17 ms 40204 KB Output is correct
20 Correct 18 ms 41228 KB Output is correct
21 Correct 14 ms 37908 KB Output is correct
22 Correct 16 ms 40208 KB Output is correct
23 Correct 16 ms 40828 KB Output is correct
24 Correct 18 ms 41228 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 805 ms 202208 KB Output is correct
2 Correct 1313 ms 362872 KB Output is correct
3 Correct 1723 ms 394908 KB Output is correct
4 Runtime error 1463 ms 524288 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 35928 KB Output is correct
2 Correct 10 ms 35932 KB Output is correct
3 Correct 11 ms 36188 KB Output is correct
4 Correct 11 ms 36248 KB Output is correct
5 Correct 10 ms 35676 KB Output is correct
6 Correct 10 ms 35932 KB Output is correct
7 Correct 10 ms 36188 KB Output is correct
8 Correct 11 ms 36248 KB Output is correct
9 Correct 10 ms 35932 KB Output is correct
10 Correct 11 ms 36204 KB Output is correct
11 Correct 11 ms 36188 KB Output is correct
12 Correct 11 ms 36244 KB Output is correct
13 Correct 14 ms 37908 KB Output is correct
14 Correct 15 ms 40204 KB Output is correct
15 Correct 16 ms 40968 KB Output is correct
16 Correct 18 ms 45836 KB Output is correct
17 Correct 14 ms 37908 KB Output is correct
18 Correct 15 ms 40976 KB Output is correct
19 Correct 17 ms 40204 KB Output is correct
20 Correct 18 ms 41228 KB Output is correct
21 Correct 14 ms 37908 KB Output is correct
22 Correct 16 ms 40208 KB Output is correct
23 Correct 16 ms 40828 KB Output is correct
24 Correct 18 ms 41228 KB Output is correct
25 Correct 805 ms 202208 KB Output is correct
26 Correct 1313 ms 362872 KB Output is correct
27 Correct 1723 ms 394908 KB Output is correct
28 Runtime error 1463 ms 524288 KB Execution killed with signal 9
29 Halted 0 ms 0 KB -