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Submission #832982

# Submission time Handle Problem Language Result Execution time Memory
832982 2023-08-21T17:55:44 Z damwuan Klasika (COCI20_klasika) C++17
33 / 110
 677 ms 524288 KB 



#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define bit(n,i) ((n>>i)&1)
#define all(x) x.begin(),x.end()
//#pragma GCC optimize("O2,unroll-loops")
//#pragma GCC target("avx,avx2,bmi,bmi2,sse,sse2,sse3,ssse3,sse4,popcnt")
//#define int long long
typedef long long ll;
typedef pair<int,int> pii;
typedef double ld;
typedef pair<ld,ld> pdd;
typedef pair<ll,ll> pll;
const ll maxn=2e5+5;
const ll offset=1e9;
const ll block_sz=317;
const ll inf=1e9;
const ll mod=1e9+7;
int n;
struct TrieNode
{
    TrieNode* child[2];
    int cnt;
    TrieNode()
    {
        child[0]=child[1]=nullptr;
        cnt=inf;
    }
};
TrieNode* root[maxn];
void Update(TrieNode* r, int u,int Time)
{
    TrieNode* cur=r;
    for2(i,30,0)
    {
        bool nxt=(u>>i)&1;
        if (cur->child[nxt]==nullptr)
        {
            cur->child[nxt]=new TrieNode;
        }
        cur=cur->child[nxt];
        cur->cnt=min(cur->cnt,Time);
    }
}
int Get(TrieNode* r, int u,int Time)
{
    int ans=0;
    TrieNode* cur=r;
    for2(i,30,0)
    {
        bool nxt=((u>>i)&1)^1;
        //cerr<< nxt<<'\n';
        if (cur->child[nxt]!=nullptr && cur->child[nxt]->cnt<=Time)
        {
            cur=cur->child[nxt];
            ans+=(1<<i);
        }
        else
        //if (cur->child[nxt|1]!=nullptr)
        cur=cur->child[nxt^1];
        //else cout << "wtf\n";
    }
    return ans;
}

int q,id[maxn];
string type;
int pre[maxn],ans[maxn];
vector<int> adj[maxn],L[maxn];
vector<pii> qr[maxn];
void dfs(int u)
{
//    cerr<< u<<' '<<pre[u]<<'\n';
    L[u].pb(u);
    Update(root[u],pre[u],id[u]);
    for(int v: adj[u])
    {
//        cerr<< v<<" asd\n";
        dfs(v);
    }
    for(int v: adj[u])
    {
        if (L[v].size()>L[u].size())
        {
            L[u].swap(L[v]);
            swap(root[u],root[v]);
        }
        for(int a:L[v])
        {
            L[u].pb(a);
            Update(root[u],pre[a],id[a]);
        }
        L[v].clear();
        delete root[v];
    }
    //cerr<< u<< ' '<<L[u].size()<<" wtf\n";
    //...
    for(auto x: qr[u])
    {
        //cerr<< u<<' '<<x.se<<' '<<x.fi<<' '<<L[u].size()<<'\n';
        ans[x.se]=Get(root[u],x.fi,x.se);
    }
}
void sol()
{
    cin >> q;
    n=1;
    for1(i,1,q)
    {
        ans[i]=-1;
        int a,b;cin>> type>>a>>b;
        if (type[0]=='A')
        {
            adj[a].pb(++n);
            pre[n]=pre[a]^b;
            id[n]=i;
        }
        else
        {
            qr[b].pb({pre[a],i});
        }
    }
    for1(i,1,n) root[i]=new TrieNode;
//    cerr<< "kk\n";
    dfs(1);
    for1(i,1,q) if (ans[i]!=-1) cout << ans[i]<<'\n';
}
int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
//    freopen("GROUPDIV.inp","r",stdin);
//    freopen("GROUPDIV.out","w",stdout);

    int t=1;//cin >> t;
    while (t--)
    {
        sol();
    }
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 7 ms 14576 KB Output is correct
3 Correct 9 ms 14548 KB Output is correct
4 Correct 7 ms 14676 KB Output is correct
5 Correct 8 ms 14416 KB Output is correct
6 Correct 7 ms 14548 KB Output is correct
7 Correct 7 ms 14736 KB Output is correct
8 Correct 7 ms 14860 KB Output is correct
9 Correct 7 ms 14420 KB Output is correct
10 Correct 7 ms 14676 KB Output is correct
11 Correct 7 ms 14676 KB Output is correct
12 Correct 7 ms 14804 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 7 ms 14576 KB Output is correct
3 Correct 9 ms 14548 KB Output is correct
4 Correct 7 ms 14676 KB Output is correct
5 Correct 8 ms 14416 KB Output is correct
6 Correct 7 ms 14548 KB Output is correct
7 Correct 7 ms 14736 KB Output is correct
8 Correct 7 ms 14860 KB Output is correct
9 Correct 7 ms 14420 KB Output is correct
10 Correct 7 ms 14676 KB Output is correct
11 Correct 7 ms 14676 KB Output is correct
12 Correct 7 ms 14804 KB Output is correct
13 Correct 8 ms 15188 KB Output is correct
14 Correct 9 ms 16000 KB Output is correct
15 Correct 10 ms 16732 KB Output is correct
16 Correct 10 ms 17384 KB Output is correct
17 Correct 10 ms 15572 KB Output is correct
18 Correct 11 ms 16916 KB Output is correct
19 Correct 12 ms 18428 KB Output is correct
20 Correct 13 ms 19668 KB Output is correct
21 Correct 9 ms 15548 KB Output is correct
22 Correct 10 ms 16596 KB Output is correct
23 Correct 11 ms 17632 KB Output is correct
24 Correct 11 ms 18516 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 158 ms 84724 KB Output is correct
2 Correct 240 ms 148784 KB Output is correct
3 Correct 308 ms 210752 KB Output is correct
4 Correct 343 ms 273300 KB Output is correct
5 Correct 283 ms 180540 KB Output is correct
6 Correct 641 ms 348052 KB Output is correct
7 Correct 677 ms 512912 KB Output is correct
8 Runtime error 621 ms 524288 KB Execution killed with signal 9
9 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 7 ms 14576 KB Output is correct
3 Correct 9 ms 14548 KB Output is correct
4 Correct 7 ms 14676 KB Output is correct
5 Correct 8 ms 14416 KB Output is correct
6 Correct 7 ms 14548 KB Output is correct
7 Correct 7 ms 14736 KB Output is correct
8 Correct 7 ms 14860 KB Output is correct
9 Correct 7 ms 14420 KB Output is correct
10 Correct 7 ms 14676 KB Output is correct
11 Correct 7 ms 14676 KB Output is correct
12 Correct 7 ms 14804 KB Output is correct
13 Correct 8 ms 15188 KB Output is correct
14 Correct 9 ms 16000 KB Output is correct
15 Correct 10 ms 16732 KB Output is correct
16 Correct 10 ms 17384 KB Output is correct
17 Correct 10 ms 15572 KB Output is correct
18 Correct 11 ms 16916 KB Output is correct
19 Correct 12 ms 18428 KB Output is correct
20 Correct 13 ms 19668 KB Output is correct
21 Correct 9 ms 15548 KB Output is correct
22 Correct 10 ms 16596 KB Output is correct
23 Correct 11 ms 17632 KB Output is correct
24 Correct 11 ms 18516 KB Output is correct
25 Correct 158 ms 84724 KB Output is correct
26 Correct 240 ms 148784 KB Output is correct
27 Correct 308 ms 210752 KB Output is correct
28 Correct 343 ms 273300 KB Output is correct
29 Correct 283 ms 180540 KB Output is correct
30 Correct 641 ms 348052 KB Output is correct
31 Correct 677 ms 512912 KB Output is correct
32 Runtime error 621 ms 524288 KB Execution killed with signal 9
33 Halted 0 ms 0 KB -