oj.uz

Submission #589827

# Submission time Handle Problem Language Result Execution time Memory
589827 2022-07-05T10:34:22 Z nguyen31hoang08minh2003 Klasika (COCI20_klasika) C++14
66 / 110
 173 ms 40512 KB 
/*
+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+
|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|
|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|
|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|
+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+
|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|
|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|
|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|
+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+
|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|-\/\/-|
|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|\/\/\/|
|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|/-/\-\|
+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+
|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|\-\/-/|
|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|/\/\/\|
|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|-/\/\-|
+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+------+
*/
#include <bits/stdc++.h>
#define fore(i, a, b) for (signed i = (a), i##_last = (b); i < i##_last; ++i)
#define fort(i, a, b) for (signed i = (a), i##_last = (b); i <= i##_last; ++i)
#define ford(i, a, b) for (signed i = (a), i##_last = (b); i >= i##_last; --i)
#define fi first
#define se second
#define pb push_back
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
using namespace std;
using ll = long long;
using ld = long double;

template<class A, class B> bool maxi(A &a, const B &b) {return (a < b) ? (a = b, true):false;};
template<class A, class B> bool mini(A &a, const B &b) {return (a > b) ? (a = b, true):false;};

typedef unsigned long long ull;
typedef pair<int, int> ii;
typedef vector<ll> vi;
typedef vector<ii> vii;
typedef vector<vi> vvi;
typedef vector<vii> vvii;

class BinaryTrie {
private:
    int length, depth;
    vector<array<int, 2> > trie;
public:
    BinaryTrie(const int depth): trie(1, {-1, -1}), length(0), depth(depth) {};
    void append(const int mask) {
        int x = 0, y;
        ford(i, depth, 0) {
            y = ((mask >> i) & 1);
            if (trie[x][y] < 0) {
                trie[x][y] = ++length;
                trie.push_back({-1, -1});
            }
            x = trie[x][y];
        }
    }
    int query(const int mask) const {
        int res = 0, x = 0, y;
        ford(i, depth, 0) {
            y = ((mask >> i) & 1) ^ 1;
            if (trie[x][y] < 0) {
                if (y ^ 1)
                    res |= 1 << i;
                x = trie[x][y ^ 1];
            } else {
                if (y)
                    res |= 1 << i;
                x = trie[x][y];
            }
        }
        return res;
    }
};

int q;

void subtask2() {
    vi h(2);
    vii p(2);
    string t;
    vvii adj(2);
    int x, y, a, b, n = 1, res, g;
    const function<int(int, int)> findDistance = [&](int x, int y) -> int {
        int res = 0;
        for (; h[x] > h[y]; x = p[x].se)
            res ^= p[x].fi;
        for (; h[y] > h[x]; y = p[y].se)
            res ^= p[y].fi;
        while (x != y) {
            res ^= p[x].fi ^ p[y].fi;
            x = p[x].se;
            y = p[y].se;
        }
        return res;
    };
    const function<void(int, int)> dfs = [&res, &adj, &g, &dfs](const int u, const int d) {
        maxi(res, g ^ d);
        for (const auto &[w, v] : adj[u])
            dfs(v, d ^ w);
    };
    fort(_, 1, q) {
        cin >> t;
        if (t == "Add") {
            cin >> x >> y;
            adj.pb(vii());
            adj[x].emplace_back(y, ++n);
            h.pb(h[x] + 1);
            p.emplace_back(y, x);
        } else {
            cin >> a >> b;
            res = g = findDistance(a, b);
            dfs(b, 0);
            cout << res << '\n';
        }
    }
}

void subtask3() {
    vi h(2);
    string t;
    int x, y, a, b;
    BinaryTrie trie(30);
    trie.append(0);
    fort(_, 1, q) {
        cin >> t;
        if (t == "Add") {
            cin >> x >> y;
            h.pb(h[x] ^ y);
            trie.append(h.back());
        } else {
            cin >> a >> b;
            cout << (h[a] ^ trie.query(h[a])) << '\n';
        }
    }
}

int main() {
    #ifdef LOCAL
        freopen("input.INP", "r", stdin);
    #endif // LOCAL
    cin.tie(0) -> sync_with_stdio(0);
    cout.tie(0);
    cin >> q;
    if (q <= 2000)
        subtask2();
    else
        subtask3();
    return 0;
}

Compilation message

klasika.cpp: In constructor 'BinaryTrie::BinaryTrie(int)':
klasika.cpp:47:28: warning: 'BinaryTrie::trie' will be initialized after [-Wreorder]
   47 |     vector<array<int, 2> > trie;
      |                            ^~~~
klasika.cpp:46:9: warning:   'int BinaryTrie::length' [-Wreorder]
   46 |     int length, depth;
      |         ^~~~~~
klasika.cpp:49:5: warning:   when initialized here [-Wreorder]
   49 |     BinaryTrie(const int depth): trie(1, {-1, -1}), length(0), depth(depth) {};
      |     ^~~~~~~~~~
klasika.cpp: In lambda function:
klasika.cpp:102:26: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  102 |         for (const auto &[w, v] : adj[u])
      |                          ^

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 4 ms 340 KB Output is correct
14 Correct 5 ms 456 KB Output is correct
15 Correct 13 ms 468 KB Output is correct
16 Correct 4 ms 468 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 2 ms 468 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 139 ms 13000 KB Output is correct
2 Correct 141 ms 22328 KB Output is correct
3 Correct 135 ms 20992 KB Output is correct
4 Correct 159 ms 40436 KB Output is correct
5 Correct 114 ms 12984 KB Output is correct
6 Correct 146 ms 22344 KB Output is correct
7 Correct 127 ms 20948 KB Output is correct
8 Correct 147 ms 40332 KB Output is correct
9 Correct 118 ms 12984 KB Output is correct
10 Correct 125 ms 22308 KB Output is correct
11 Correct 134 ms 20992 KB Output is correct
12 Correct 173 ms 40512 KB Output is correct

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 4 ms 340 KB Output is correct
14 Correct 5 ms 456 KB Output is correct
15 Correct 13 ms 468 KB Output is correct
16 Correct 4 ms 468 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 2 ms 468 KB Output is correct
25 Correct 139 ms 13000 KB Output is correct
26 Correct 141 ms 22328 KB Output is correct
27 Correct 135 ms 20992 KB Output is correct
28 Correct 159 ms 40436 KB Output is correct
29 Correct 114 ms 12984 KB Output is correct
30 Correct 146 ms 22344 KB Output is correct
31 Correct 127 ms 20948 KB Output is correct
32 Correct 147 ms 40332 KB Output is correct
33 Correct 118 ms 12984 KB Output is correct
34 Correct 125 ms 22308 KB Output is correct
35 Correct 134 ms 20992 KB Output is correct
36 Correct 173 ms 40512 KB Output is correct
37 Incorrect 112 ms 13320 KB Output isn't correct
38 Halted 0 ms 0 KB -