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Submission #832980

# Submission time Handle Problem Language Result Execution time Memory
832980 2023-08-21T17:43:02 Z damwuan Klasika (COCI20_klasika) C++17
33 / 110
 757 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]);
        }
    }
    //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 7 ms 14420 KB Output is correct
2 Correct 9 ms 14548 KB Output is correct
3 Correct 7 ms 14548 KB Output is correct
4 Correct 7 ms 14676 KB Output is correct
5 Correct 7 ms 14420 KB Output is correct
6 Correct 7 ms 14620 KB Output is correct
7 Correct 7 ms 14652 KB Output is correct
8 Correct 7 ms 14892 KB Output is correct
9 Correct 8 ms 14548 KB Output is correct
10 Correct 7 ms 14672 KB Output is correct
11 Correct 7 ms 14756 KB Output is correct
12 Correct 7 ms 14768 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 9 ms 14548 KB Output is correct
3 Correct 7 ms 14548 KB Output is correct
4 Correct 7 ms 14676 KB Output is correct
5 Correct 7 ms 14420 KB Output is correct
6 Correct 7 ms 14620 KB Output is correct
7 Correct 7 ms 14652 KB Output is correct
8 Correct 7 ms 14892 KB Output is correct
9 Correct 8 ms 14548 KB Output is correct
10 Correct 7 ms 14672 KB Output is correct
11 Correct 7 ms 14756 KB Output is correct
12 Correct 7 ms 14768 KB Output is correct
13 Correct 8 ms 15244 KB Output is correct
14 Correct 8 ms 15956 KB Output is correct
15 Correct 10 ms 16648 KB Output is correct
16 Correct 14 ms 17364 KB Output is correct
17 Correct 10 ms 15604 KB Output is correct
18 Correct 14 ms 16932 KB Output is correct
19 Correct 11 ms 18544 KB Output is correct
20 Correct 12 ms 19796 KB Output is correct
21 Correct 9 ms 15512 KB Output is correct
22 Correct 9 ms 16596 KB Output is correct
23 Correct 10 ms 17620 KB Output is correct
24 Correct 16 ms 18508 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 85404 KB Output is correct
2 Correct 238 ms 150012 KB Output is correct
3 Correct 287 ms 212552 KB Output is correct
4 Correct 349 ms 275704 KB Output is correct
5 Correct 295 ms 181776 KB Output is correct
6 Correct 556 ms 350544 KB Output is correct
7 Correct 757 ms 517872 KB Output is correct
8 Runtime error 614 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 7 ms 14420 KB Output is correct
2 Correct 9 ms 14548 KB Output is correct
3 Correct 7 ms 14548 KB Output is correct
4 Correct 7 ms 14676 KB Output is correct
5 Correct 7 ms 14420 KB Output is correct
6 Correct 7 ms 14620 KB Output is correct
7 Correct 7 ms 14652 KB Output is correct
8 Correct 7 ms 14892 KB Output is correct
9 Correct 8 ms 14548 KB Output is correct
10 Correct 7 ms 14672 KB Output is correct
11 Correct 7 ms 14756 KB Output is correct
12 Correct 7 ms 14768 KB Output is correct
13 Correct 8 ms 15244 KB Output is correct
14 Correct 8 ms 15956 KB Output is correct
15 Correct 10 ms 16648 KB Output is correct
16 Correct 14 ms 17364 KB Output is correct
17 Correct 10 ms 15604 KB Output is correct
18 Correct 14 ms 16932 KB Output is correct
19 Correct 11 ms 18544 KB Output is correct
20 Correct 12 ms 19796 KB Output is correct
21 Correct 9 ms 15512 KB Output is correct
22 Correct 9 ms 16596 KB Output is correct
23 Correct 10 ms 17620 KB Output is correct
24 Correct 16 ms 18508 KB Output is correct
25 Correct 179 ms 85404 KB Output is correct
26 Correct 238 ms 150012 KB Output is correct
27 Correct 287 ms 212552 KB Output is correct
28 Correct 349 ms 275704 KB Output is correct
29 Correct 295 ms 181776 KB Output is correct
30 Correct 556 ms 350544 KB Output is correct
31 Correct 757 ms 517872 KB Output is correct
32 Runtime error 614 ms 524288 KB Execution killed with signal 9
33 Halted 0 ms 0 KB -