oj.uz

Submission #891757

# Submission time Handle Problem Language Result Execution time Memory
891757 2023-12-24T02:18:13 Z Fucsdeptrai Klasika (COCI20_klasika) C++17
11 / 110
 579 ms 524288 KB 
#include<bits/stdc++.h>

using namespace std;
using ll = long long;

const int N = 2e5 + 9;
const int Log = 30;

struct Node
{
    Node *c[2];
    int mn;

    Node()
    {
        c[0] = c[1] = NULL;
        mn = N;
    }
};

int n, m, q, Timer;
int d[N], res[N];
vector<pair<int, int>> adj[N], vec[N];
vector<pair<pair<int, int>, int>> que[N];
Node *Trie[N];

void Add(int id, int x, int y)
{
    Node *p = Trie[id];
    for(int i = Log; i >= 0;i --)
    {
        bool w = (1<<i)&x;
        if(p->c[w] == NULL) p->c[w] = new Node;
        p = p->c[w];
        p->mn = min(p->mn, y);
    }
}

int Get(int id, int x, int y)
{
    Node *p = Trie[id];
    for(int i = Log; i >= 0;i --)
    {
        bool w = (1<<i)&x;
        if(p->c[w^1] != NULL and p->c[w^1]->mn <= y)
        {
            x ^= ((w^1)<<i);
            p = p->c[w^1];
        }
        else if(p->c[w] != NULL and p->c[w]->mn <= y)
        {
            x ^= (w<<i);
            p = p->c[w];
        }
        else
        {
            return 0;
        }
    }
    return x;
}

void Dfs(int u = 1, int du = 0)
{
    d[u] = du;
    for(auto [v, w] : adj[u])
    {
        Dfs(v, du^w);
    }
}

void Merge(int u, int v)
{
    if(vec[u].size() < vec[v].size()) swap(vec[u], vec[v]);
    for(auto x : vec[v]) vec[u].push_back(x);
}

void Dfs1(int u = 1)
{
    vec[u].push_back({d[u], u});
    for(auto [v, w] : adj[u])
    {
        Dfs1(v);
        Merge(u, v);
    }
    Trie[u] = new Node();
    for(auto [x, y] : vec[u])
    {
        Add(u, x, y);
    }
    for(auto [xy, id] : que[u])
    {
        auto [x, y] = xy;
        res[id] = Get(u, d[x], y);
    }
}

void Solve()
{
    cin>>q;
    ++n;
    while(q--)
    {
        string Type; cin>>Type;
        int x, y; cin >> x >> y;
        if(Type == "Add")
        {
            adj[x].push_back({++n, y});
        }
        else
        {
            que[y].push_back({{x, n}, ++m});
        }
    }

    Timer = 0;
    Dfs();
    Dfs1();
    for(int i = 1;i <= m; i++)
    {
        cout << res[i] << '\n';
    }
}

signed main()
{
//	ios_base::sync_with_stdio(0);
//	cin.tie(0);

	int TC = 1;
//	cin>>TC;
    while(TC--)
    {
        Solve();
    }
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 17756 KB Output is correct
2 Correct 5 ms 19036 KB Output is correct
3 Correct 9 ms 22620 KB Output is correct
4 Correct 13 ms 26080 KB Output is correct
5 Correct 3 ms 16988 KB Output is correct
6 Correct 4 ms 16988 KB Output is correct
7 Correct 4 ms 17372 KB Output is correct
8 Correct 5 ms 17500 KB Output is correct
9 Correct 4 ms 16988 KB Output is correct
10 Correct 5 ms 17500 KB Output is correct
11 Correct 4 ms 18012 KB Output is correct
12 Correct 5 ms 18524 KB Output is correct

Subtask #2
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 17756 KB Output is correct
2 Correct 5 ms 19036 KB Output is correct
3 Correct 9 ms 22620 KB Output is correct
4 Correct 13 ms 26080 KB Output is correct
5 Correct 3 ms 16988 KB Output is correct
6 Correct 4 ms 16988 KB Output is correct
7 Correct 4 ms 17372 KB Output is correct
8 Correct 5 ms 17500 KB Output is correct
9 Correct 4 ms 16988 KB Output is correct
10 Correct 5 ms 17500 KB Output is correct
11 Correct 4 ms 18012 KB Output is correct
12 Correct 5 ms 18524 KB Output is correct
13 Correct 63 ms 80212 KB Output is correct
14 Correct 222 ms 251244 KB Output is correct
15 Runtime error 501 ms 524288 KB Execution killed with signal 9
16 Halted 0 ms 0 KB -

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Runtime error 579 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 17756 KB Output is correct
2 Correct 5 ms 19036 KB Output is correct
3 Correct 9 ms 22620 KB Output is correct
4 Correct 13 ms 26080 KB Output is correct
5 Correct 3 ms 16988 KB Output is correct
6 Correct 4 ms 16988 KB Output is correct
7 Correct 4 ms 17372 KB Output is correct
8 Correct 5 ms 17500 KB Output is correct
9 Correct 4 ms 16988 KB Output is correct
10 Correct 5 ms 17500 KB Output is correct
11 Correct 4 ms 18012 KB Output is correct
12 Correct 5 ms 18524 KB Output is correct
13 Correct 63 ms 80212 KB Output is correct
14 Correct 222 ms 251244 KB Output is correct
15 Runtime error 501 ms 524288 KB Execution killed with signal 9
16 Halted 0 ms 0 KB -